PyPI · #3041 most downloaded on PyPI

opik

2.2.881.8M downloads/mocomet-ml/opik ↗New releases in your daily digest, changelog included.

Comet tool for logging and evaluating LLM traces

Last release 2 days ago
02 Oct 2026
Ships on a steady schedule
a new release about every 8 days
Some releases are documented
notes for 24 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
2 years old
629 releases · first in 2024

Release timeline

629 releases since 2024

202420252026

20242026

One column per month.

Releases

2.1.124 Jun 2026
[NA] Add comet_ml version restriction by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/112
What's Changed

[NA] Add comet_ml version restriction by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/112

[NA] Bump version 2.1.1 by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/113

Full Changelog: https://github.com/comet-ml/comet-llm/compare/2.1.0...2.1.1

What's Changed

[NA] [SDK] test: make pydantic-ai E2E tolerant of OTel GenAI span names by @alexkuzmik in https://github.com/comet-ml/opik/pull/7228

[OPIK-7058] [BE] Emit span usage breakdown by workspace, project & user by @LifeXplorer in https://github.com/comet-ml/opik/pull/7216

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7217

[OPIK-6830] [BE] fix: restart pods with a dead outbound HTTP connection pool via liveness health check by @BorisTkachenko in https://github.com/comet-ml/opik/pull/7215

[NA] [BE] Cost Intell Query Optimization by @collincunn in https://github.com/comet-ml/opik/pull/7232

[OPIK-7101] Make project stats opt-in on /projects/retrieve by @Nimrod007 in https://github.com/comet-ml/opik/pull/7231

Full Changelog: https://github.com/comet-ml/opik/compare/2.1.0...2.1.1
Open source →
2.1.024 Jun 2026
[CM-8738] improve request exception handling by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/103

What's Changed

[CM-8738] improve request exception handling by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/103
[CM-9113] Introduce api object by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/109
[NA] Bump version 2.1.0 by @alexkuzmik in https://github.com/comet-ml/comet-llm/pull/110

Full Changelog: https://github.com/comet-ml/comet-llm/compare/2.0.2...2.1.0

What's Changed

[OPIK-6948] [DOCS] docs: document Jira key convention to prevent PR over-linking by @JetoPistola in https://github.com/comet-ml/opik/pull/7187
[OPIK-6885][OPIK-7060] [HELM] chore: upgrade ClickHouse to 25.8 LTS + operator 0.27.1, align docker-compose & testcontainers by @GuySaar8 in https://github.com/comet-ml/opik/pull/7180
[OPIK-6627] [CI] feat(release): replay resilience guards + tag-pinning (recreates #6800) by @JetoPistola in https://github.com/comet-ml/opik/pull/7124
[NA] [HELM] Bump version to 2.1.0 for ClickHouse 25.8 LTS upgrade by @GuySaar8 in https://github.com/comet-ml/opik/pull/7220
fix(e2e): drop greeting assertion from ollie-smoke t1 by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7218
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/7224
[OPIK-6894] [BE] feat: add id_week predicate to TraceDAO retention paths by @andrescrz in https://github.com/comet-ml/opik/pull/7219

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.77...2.1.0

Open source →

2.0.7723 Jun 2026

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7211

What's Changed

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7211
[OPIK-6964] [SDK] [DOCS] feat: scope opik export/import to a project (v2) by @dsblank in https://github.com/comet-ml/opik/pull/7145
[OPIK-7068] [SDK] fix: bound export span fetch by trace_id range by @thiagohora in https://github.com/comet-ml/opik/pull/7213
[OPIK-7051] [BE] feat: per-workspace online-scoring sampling metric + populate error workspace by @thiagohora in https://github.com/comet-ml/opik/pull/7195

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.76...2.0.77

Open source →

2.0.7623 Jun 2026

[OPIK-7050] [BE] fix: resolve ClickHouse query failures surfacing as IOException by @thiagohora in https://github.com/comet-ml/opik/pull/7199

What's Changed

[OPIK-7050] [BE] fix: resolve ClickHouse query failures surfacing as IOException by @thiagohora in https://github.com/comet-ml/opik/pull/7199
[NA] [BE] feat: accept all-clear reports + track last scan time (agent insights) by @aadereiko in https://github.com/comet-ml/opik/pull/7212
[OPIK-7052] [BE] feat: add OpenTelemetry monitoring for Agent Insights pipeline by @BorisTkachenko in https://github.com/comet-ml/opik/pull/7200
[OPIK-6888] [BE] chore: disable uuidValidation by default by @andrescrz in https://github.com/comet-ml/opik/pull/7214
[OPIK-7035] [BE] Thread query optimizations: listing page-pushdown + close/feedback thread-id resolution by @thiagohora in https://github.com/comet-ml/opik/pull/7178
[OPIK-6833] Dataset created_at / last_updated_at skewed by host TZ when backend JVM is not in UTC by @yaricom in https://github.com/comet-ml/opik/pull/7205

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.75...2.0.76

Open source →

2.0.7523 Jun 2026

[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/7188

What's Changed

[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/7188
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7189
build(deps): bump opentelmetry.version from 2.28.1 to 2.29.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/7193
build(deps): bump software.amazon.jdbc:aws-advanced-jdbc-wrapper from 4.0.0 to 4.1.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/7191
[OPIK-6924] [BE][FE] feat: simplify Optimization Studio deployment, fix optimization runs, and add separate algorithm model by @alexkuzmik in https://github.com/comet-ml/opik/pull/7133
[NA] [DOCS] chore: switch python sdk docs build to use uv for faster dependency resolution by @petrotiurin in https://github.com/comet-ml/opik/pull/7166
build(deps): bump org.redisson:redisson from 4.5.0 to 4.6.1 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/7192
build(deps-dev): bump com.diffplug.spotless:spotless-maven-plugin from 3.6.0 to 3.7.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/7190
[NA] [SDK] feat: enrich opik-vercel exporter for AI SDK v7 / Vercel eve by @alexkuzmik in https://github.com/comet-ml/opik/pull/7177
[OPIK-6982] [BE] fix: stream consumer reaper job fails to instantiate under Quartz by @thiagohora in https://github.com/comet-ml/opik/pull/7206
[NA] [HELM] Consolidate container probes into a single opik.probe helper by @GuySaar8 in https://github.com/comet-ml/opik/pull/7160
[OPIK-7037] [GHA] fix: dedupe Fern update PRs and post one daily Slack thread by @JetoPistola in https://github.com/comet-ml/opik/pull/7182
[NA] [BE] New CIPX AI Spend data model by @collincunn in https://github.com/comet-ml/opik/pull/7204
[DOCS] Add weekly changelog entry for June 16, 2026 by @jverre in https://github.com/comet-ml/opik/pull/7194

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.74...2.0.75

Open source →

2.0.7422 Jun 2026

[OPIK-6982] Add reaper for orphaned Redis stream consumers by @thiagohora in https://github.com/comet-ml/opik/pull/7154

What's Changed

[OPIK-6982] Add reaper for orphaned Redis stream consumers by @thiagohora in https://github.com/comet-ml/opik/pull/7154
[OPIK-7036] [CI] chore: add CODEOWNERS entry for /.github/actions/ by @JetoPistola in https://github.com/comet-ml/opik/pull/7176
[NA] [BUILD] ci: add ai_spend_plugin_ref input to build comet frontend from a plugin branch by @andriidudar in https://github.com/comet-ml/opik/pull/7173
[OPIK-6853] [BE] Daily Agent Insights report cron by @aadereiko in https://github.com/comet-ml/opik/pull/7105
[OPIK-6888] [BE] feat: UUIDv7 ingestion timestamp validation by @andrescrz in https://github.com/comet-ml/opik/pull/7179

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.73...2.0.74

Open source →

2.0.7319 Jun 2026

[OPIK-7001] [BE] [SDK] fix: surface OTel span errors, tool output, and Google cost for Pydantic AI by @alexkuzmik in https://github.com/comet-ml/opik/

What's Changed

[OPIK-7001] [BE] [SDK] fix: surface OTel span errors, tool output, and Google cost for Pydantic AI by @alexkuzmik in https://github.com/comet-ml/opik/pull/7152
[NA] [BE] feat: promote severity to first-class field on agent insights issues by @petrotiurin in https://github.com/comet-ml/opik/pull/7169
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7174
[OPIK-7034] [BE] Fix thread annotation queue JOIN conditional in COUNT and STATS queries by @miguelgrc in https://github.com/comet-ml/opik/pull/7175

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.72...2.0.73

Open source →

2.0.7219 Jun 2026

[OPIK-7019] [BE] Fix lock heartbeat denied after user scores feedback by @miguelgrc in https://github.com/comet-ml/opik/pull/7167

What's Changed

[OPIK-7019] [BE] Fix lock heartbeat denied after user scores feedback by @miguelgrc in https://github.com/comet-ml/opik/pull/7167
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7170
[OPIK-6985] [BE][FE] feat: gate Cost Intelligence on org entitlement by @andriidudar in https://github.com/comet-ml/opik/pull/7144

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.71...2.0.72

Open source →

2.0.7119 Jun 2026

[OPIK-6028] [CI] perf: build Docker images once via GHCR, parallelize E2E tests by @JetoPistola in https://github.com/comet-ml/opik/pull/7117

What's Changed

[OPIK-6028] [CI] perf: build Docker images once via GHCR, parallelize E2E tests by @JetoPistola in https://github.com/comet-ml/opik/pull/7117
[OPIK-6777] [FE] Improve Logs search discoverability & visual consistency by @miguelgrc in https://github.com/comet-ml/opik/pull/7149
[OPIK-7007] [FE] Strip UTM params from internal docs links by @jverre in https://github.com/comet-ml/opik/pull/7157
[OPIK-6918] [FE] test: add E2E tests for Prompt Library and Playground by @natagh23 in https://github.com/comet-ml/opik/pull/7129
[OPIK-6617] [CI] feat(release): add NPM_TOKEN and PYPI_API_TOKEN preflight checks (recreates #6790) by @JetoPistola in https://github.com/comet-ml/opik/pull/7122
[OPIK-6968] [BE] perf: filter trace_threads join in getMinimalThreadInfoByIds by @thiagohora in https://github.com/comet-ml/opik/pull/7158
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7163
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7162
[OPIK-6791] [BE][FE] Add source_queue_id to scores/comments and scope feedback by queue by @miguelgrc in https://github.com/comet-ml/opik/pull/7134
[NA][QA] add OpenRouter API key fallback via custom provider in playground E2E tests by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7155
[OPIK-6130][E2E] test: add Agent Playground local runner E2E by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7156

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.70...2.0.71

Open source →

2.0.7018 Jun 2026

[OPIK-6956] [FE] test: add visual testing for empty states by @natagh23 in https://github.com/comet-ml/opik/pull/7146

What's Changed

[OPIK-6956] [FE] test: add visual testing for empty states by @natagh23 in https://github.com/comet-ml/opik/pull/7146
[OPIK-6968] [BE] perf: bulk thread resolve/create + scope open/close locks to non-idempotent ops by @thiagohora in https://github.com/comet-ml/opik/pull/7138
[OPIK-6852] [BE] Agent Insights jobs CRUD by @aadereiko in https://github.com/comet-ml/opik/pull/7087

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.69...2.0.70

Open source →

2.0.6918 Jun 2026

[OPIK-6705] [BE] fix: probe ClickHouse readiness via V2 client by @andrescrz in https://github.com/comet-ml/opik/pull/7128

What's Changed

[OPIK-6705] [BE] fix: probe ClickHouse readiness via V2 client by @andrescrz in https://github.com/comet-ml/opik/pull/7128
[OPIK-6666] [BE] feat: MCP OAuth data-API bearer integration + validator + scrub job (PR 6/7) by @LifeXplorer in https://github.com/comet-ml/opik/pull/6997
[OPIK-6938] [BE] feat: add error count by error type metric by @thiagohora in https://github.com/comet-ml/opik/pull/7112
[OPIK-6666] [HELM] feat: MCP OAuth nginx routes — opt-in (PR 7/7) by @LifeXplorer in https://github.com/comet-ml/opik/pull/6998
[OPIK-6857] [BE] feat: add agent insights report results endpoints by @petrotiurin in https://github.com/comet-ml/opik/pull/7082
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7142
[NA] [BE] Bump clickhouse-java 0.9.0 -> 0.9.8 by @thiagohora in https://github.com/comet-ml/opik/pull/7097
[OPIK-6814] [BE] feat: add internal endpoint to run Agent Insights free-form SQL by @BorisTkachenko in https://github.com/comet-ml/opik/pull/7111
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7143
[OPIK-6786] [DOCS] docs: document the Opik MCP install step in opik configure by @alexkuzmik in https://github.com/comet-ml/opik/pull/7140
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7151
[OPIK-6666] [FE] feat: add /oauth/consent UI for MCP OAuth flow by @LifeXplorer in https://github.com/comet-ml/opik/pull/6905
[DOCS] Weekly changelog entry — June 9, 2026 by @jverre in https://github.com/comet-ml/opik/pull/7092
[OPIK-6982] Fix ClosingTraceThreadSubscriber NPE on null workspace timeout by @thiagohora in https://github.com/comet-ml/opik/pull/7147
[OPIK-6971] Treat insufficient_quota (429) as non-retryable for OpenAI providers by @thiagohora in https://github.com/comet-ml/opik/pull/7148

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.68...2.0.69

Open source →

2.0.6817 Jun 2026

[OPIK-6863] [FE] fix: keep Experiments charts fixed during horizontal table scroll by @JetoPistola in https://github.com/comet-ml/opik/pull/7136

What's Changed

[OPIK-6863] [FE] fix: keep Experiments charts fixed during horizontal table scroll by @JetoPistola in https://github.com/comet-ml/opik/pull/7136
[OPIK-6231] [FE] feat: add OpenClaw to onboarding integrations grid by @JetoPistola in https://github.com/comet-ml/opik/pull/7114

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.67...2.0.68

Open source →

2.0.6717 Jun 2026

[OPIK-6960] [FE] Fix hash collision in annotation queue per-user item shuffle by @miguelgrc in https://github.com/comet-ml/opik/pull/7113

What's Changed

[OPIK-6960] [FE] Fix hash collision in annotation queue per-user item shuffle by @miguelgrc in https://github.com/comet-ml/opik/pull/7113
[NA] [DOCS] docs: add FE Docker rebuild steps to writing-e2e-tests skill by @natagh23 in https://github.com/comet-ml/opik/pull/7094
[OPIK-6970] [FE] feat: swap user menu entry to Opik within Cost Intelligence by @andriidudar in https://github.com/comet-ml/opik/pull/7127
[OPIK-6293] [SDK] feat: add high-level Python SDK wrapper for dashboards by @petrotiurin in https://github.com/comet-ml/opik/pull/7115
[OPIK-6968] [BE] perf: drop per-project trace-threads lock from ingestion, closing and sampling by @thiagohora in https://github.com/comet-ml/opik/pull/7131
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7135
[OPIK-6687] [FE] feat: surface integration logo in IntegrationDetailsDialog title by @JetoPistola in https://github.com/comet-ml/opik/pull/7116
[OPIK-6584] [CI] feat: lint workflows at info+ severity; diff-scoped on CI mirroring pre-commit by @JetoPistola in https://github.com/comet-ml/opik/pull/7102
[OPIK-6813] [BE] feat: add distributed lock (semaphore) metrics by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/7118

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.66...2.0.67

Open source →

2.0.6616 Jun 2026

[OPIK-6321] [SDK][FE] feat: hide non-essential LangGraph internal spans by default by @alexkuzmik in https://github.com/comet-ml/opik/pull/7095

What's Changed

[OPIK-6321] [SDK][FE] feat: hide non-essential LangGraph internal spans by default by @alexkuzmik in https://github.com/comet-ml/opik/pull/7095
[OPIK-6951] [QA] test: Ollie deeper E2E coverage (sidebar, context, /analyze, /instrument, /improve) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7108
[OPIK-6947] [BE] feat: add cost_intelligence_enabled service toggle by @andriidudar in https://github.com/comet-ml/opik/pull/7123
[OPIK-6968] [BE] refactor: remove orphaned trace-thread scored_at write to cut lock contention by @thiagohora in https://github.com/comet-ml/opik/pull/7121
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7126

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.65...2.0.66

Open source →

2.0.6516 Jun 2026

[OPIK-4373] [SDK] feat: list annotation queue items via get_items by @petrotiurin in https://github.com/comet-ml/opik/pull/7100

What's Changed

[OPIK-4373] [SDK] feat: list annotation queue items via get_items by @petrotiurin in https://github.com/comet-ml/opik/pull/7100
[NA] [SDK] test: update Anthropic integration tests to use newer models by @petrotiurin in https://github.com/comet-ml/opik/pull/7120
[OPIK-6835] [SDK] feat: support OPIK_TRACK_DISABLE in TypeScript SDK by @alexkuzmik in https://github.com/comet-ml/opik/pull/7106
[OPIK-6947] [FE] feat: pluggable FE plugin system + extract AI Spend to a private plugin by @andriidudar in https://github.com/comet-ml/opik/pull/7119

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.64...2.0.65

Open source →

2.0.6415 Jun 2026Security

[OPIK-6944] [BE] fix(security): drop perl to clear CVE-2026-9538 in opik-backend by @JetoPistola in https://github.com/comet-ml/opik/pull/7107

What's Changed

[issue-7083] [SDK] fix: correct health-check URL path by @CPUat in https://github.com/comet-ml/opik/pull/7084
[OPIK-6666] [BE] feat: MCP OAuth dynamic client registration — RFC 7591 (PR 5/7) by @LifeXplorer in https://github.com/comet-ml/opik/pull/7093
[BE] refactor: use ModelPrice builder + parameterize gemini tier tests by @Anuj7411 in https://github.com/comet-ml/opik/pull/7086
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7098
[OPIK-6950] [FE] test: add initial Ollie E2E coverage by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7096
[OPIK-6749][BE] Speed up TraceThreadsClosingJob query with argMax dedup by @yaricom in https://github.com/comet-ml/opik/pull/7103
[OPIK-6952] [FE] Fix sidebar extra padding when home group is empty by @miguelgrc in https://github.com/comet-ml/opik/pull/7104
[DND-827] [BE] perf: fix sandbox-executor per-request latency regression (recompiling stdlib) by @GuySaar8 in https://github.com/comet-ml/opik/pull/7110
[OPIK-6944] [BE] fix(security): drop perl to clear CVE-2026-9538 in opik-backend by @JetoPistola in https://github.com/comet-ml/opik/pull/7107

New Contributors

@CPUat made their first contribution in https://github.com/comet-ml/opik/pull/7084

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.63...2.0.64

Open source →

2.0.6315 Jun 2026

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7022

What's Changed

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7022
[OPIK-6668] [BE] build: upgrade Java 21 -> 25 LTS by @thiagohora in https://github.com/comet-ml/opik/pull/6862
[OPIK-6849] [BE] feat: support last_updated_at / created_at filters on Span search by @thiagohora in https://github.com/comet-ml/opik/pull/7018
[OPIK-6858] Collapsible JSON/YAML code blocks in trace/span view by @aadereiko in https://github.com/comet-ml/opik/pull/7026
[OPIK-6818] [FE] Redesign dataset & test suite creation flow by @aadereiko in https://github.com/comet-ml/opik/pull/7014
[OPIK-6820] [FE] Fix workspace-root redirect loop via index route by @andriidudar in https://github.com/comet-ml/opik/pull/7027
[OPIK-6820] [BE] Internal backend endpoints by @andriidudar in https://github.com/comet-ml/opik/pull/7020
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7033
[OPIK-6843] [FE] fix: correct copy in dataset expansion success/error toasts and buttons by @olesya-comet in https://github.com/comet-ml/opik/pull/7028
[OPIK-6844] [QA] feat: deeper tracing & spans E2E coverage by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7013
[BE] fix: apply above_200k tier pricing in cost calculation by @Anuj7411 in https://github.com/comet-ml/opik/pull/7023
[OPIK-6917] [QA] fix: update E2E create-flow POMs + specs for OPIK-6818 redesign by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7040
[NA] [QA] fix: surface bridge client timeouts as descriptive errors by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7030
[OPIK-6666] [BE] feat: MCP OAuth authorize + consent + AuthService workspace resolution (PR 3/7) by @LifeXplorer in https://github.com/comet-ml/opik/pull/6994
[OPIK-6802] [FE] test: add Prompt Library smoke tests for text and chat prompts by @natagh23 in https://github.com/comet-ml/opik/pull/7034
[OPIK-6720] [FE][BE] Annotation queue claim mechanism by @miguelgrc in https://github.com/comet-ml/opik/pull/6973
[OPIK-6810] [BE] add project_name to experiment_items_bulk to avoid Default Project fallback by @thiagohora in https://github.com/comet-ml/opik/pull/7021
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7043
[OPIK-6838] [FE] fix: show prompt name + version instead of commit hash in experiment views by @awkoy in https://github.com/comet-ml/opik/pull/7031
[OPIK-6761] [FE] feat: rework Optimization runs empty state to match Figma by @awkoy in https://github.com/comet-ml/opik/pull/7025
[OPIK-6810] [DOCS] document project_name on experiment_items_bulk by @thiagohora in https://github.com/comet-ml/opik/pull/7045
[issue-6928] [FE] fix: preserve Vertex AI model selection by @fengjikui in https://github.com/comet-ml/opik/pull/6991
[OPIK-6833][BE] Support OpenAI Responses API for the OpenAI provider (Playground & LLM-as-a-Judge) by @yaricom in https://github.com/comet-ml/opik/pull/7008
[OPIK-6820] [FE] Route shared navigation via workspace override by @andriidudar in https://github.com/comet-ml/opik/pull/7044
[OPIK-6666] [BE] feat: MCP OAuth token + revoke endpoints (PR 4/7) by @LifeXplorer in https://github.com/comet-ml/opik/pull/6995
[OPIK-6873] [BE] Add model price overrides by @jverre in https://github.com/comet-ml/opik/pull/7037
[OPIK-6850] [BE] feat: wire read-only ClickHouse client for Agent Insights freeform SQL behind a toggle by @BorisTkachenko in https://github.com/comet-ml/opik/pull/7029
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7054
[NA] [SDK] fix: stop leaked Opik background threads after each unit test by @alexkuzmik in https://github.com/comet-ml/opik/pull/7055
[OPIK-6371] refactor project metrics queries by @LifeXplorer in https://github.com/comet-ml/opik/pull/7047
[OPIK-4984] [FE][BE] Project Home Page by @miguelgrc in https://github.com/comet-ml/opik/pull/7051
[OPIK-6921] [BE] derive bulk project from the experiment or dataset by @thiagohora in https://github.com/comet-ml/opik/pull/7049
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7059
[NA] [BE][FE] Cost computation refinements by @jverre in https://github.com/comet-ml/opik/pull/7057
[DND-171] [BE] perf: optimize opik-sandbox-executor-python Dockerfile by @GuySaar8 in https://github.com/comet-ml/opik/pull/7010
[DND-172] [BE] perf: optimize opik-python-backend Dockerfile by @GuySaar8 in https://github.com/comet-ml/opik/pull/7012
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7088
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/7089
[OPIK-6820] [FE] feat: add onboarding empty state to AI Spend home page by @andriidudar in https://github.com/comet-ml/opik/pull/7058
[OPIK-6820] [FE] feat: add total tokens KPI card to AI Spend home by @andriidudar in https://github.com/comet-ml/opik/pull/7048
[OPIK-6308] [BE] feat: fast-fail with HTTP 503 when Python BE pool is saturated by @andrescrz in https://github.com/comet-ml/opik/pull/7091

New Contributors

@fengjikui made their first contribution in https://github.com/comet-ml/opik/pull/6991

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.62...2.0.63

Open source →

2.0.6211 Jun 2026

[OPIK-6770] [SDK] [DOCS] fix: link in-process OpenTelemetry spans to the active @opik.track trace by @alexkuzmik in https://github.com/comet-ml/opik/p

What's Changed

[OPIK-6770] [SDK] [DOCS] fix: link in-process OpenTelemetry spans to the active @opik.track trace by @alexkuzmik in https://github.com/comet-ml/opik/pull/7006
[OPIK-6838] [FE] fix: link Playground prompt versions to experiments and traces by @awkoy in https://github.com/comet-ml/opik/pull/7017
[NA] [BE] fix: enforce project visibility when resolving thread by project name by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/7019
[OPIK-6666] [BE] feat: MCP OAuth metadata endpoint + bundle wiring (PR 2/7) by @LifeXplorer in https://github.com/comet-ml/opik/pull/6993
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/7024

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.61...2.0.62

Open source →

2.0.6110 Jun 2026

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7011

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7011
fix: add Mistral cost tracking by @aduverger in https://github.com/comet-ml/opik/pull/6978
[issue-6976] [BE] fix: discount Gemini/Google cached tokens in cost by @Anuj7411 in https://github.com/comet-ml/opik/pull/6980
[OPIK-6754] [FE] polish: env pill sizing, deploy menu UX, playground hover fix by @aadereiko in https://github.com/comet-ml/opik/pull/6937
[issue-6344] [BE] fix: handle missing TraceField cases in online-scoring filter evaluator by @octo-patch in https://github.com/comet-ml/opik/pull/6366
[BE] fix: discount cached tokens for Claude on Vertex AI by @Anuj7411 in https://github.com/comet-ml/opik/pull/7016
[OPIK-6482] [BE] fix: fetch dashboards page in two steps to avoid filesort OOM on JSON config by @thiagohora in https://github.com/comet-ml/opik/pull/7015
[OPIK-6840] [FE] Fix best trial configuration showing initial prompt instead of optimized prompt by @jverre in https://github.com/comet-ml/opik/pull/7009

New Contributors

@aduverger made their first contribution in https://github.com/comet-ml/opik/pull/6978
@octo-patch made their first contribution in https://github.com/comet-ml/opik/pull/6366

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.60...2.0.61

Open source →

2.0.6010 Jun 2026

[NA] [QA] docs: self-serve E2E test authoring (/add-e2e-test + writing-e2e-tests skill) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6

What's Changed

[NA] [QA] docs: self-serve E2E test authoring (/add-e2e-test + writing-e2e-tests skill) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6992
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/7001
[OPIK-6737] [FE] Add Ability to Evaluate Experiment Traces from UI by @yaricom in https://github.com/comet-ml/opik/pull/6999
[NA] [FE] JSLinter fix by @yaricom in https://github.com/comet-ml/opik/pull/7005
[OPIK-5269] [SDK] feat: add evaluate_resume to continue interrupted evaluations by @alexkuzmik in https://github.com/comet-ml/opik/pull/6941
[OPIK-5269] [DOCS] docs: add page on resuming interrupted evaluations by @alexkuzmik in https://github.com/comet-ml/opik/pull/6950
[OPIK-6385] [FE] revert: thread time range in ThreadDetailsPanel traces query by @andriidudar in https://github.com/comet-ml/opik/pull/7007
[OPIK-6666] [BE] feat: MCP OAuth 2.1 foundations (PR 1/7) — schema, config, domain, persistence, service by @LifeXplorer in https://github.com/comet-ml/opik/pull/6979
[NA] [QA] feat: E2E failure investigation tooling (/comet:investigate-e2e-failure + debugging-e2e-tests skill) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/7003

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.59...2.0.60

Open source →

2.0.599 Jun 2026

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.58...2.0.59

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.58...2.0.59

Open source →

2.0.588 Jun 2026

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6974

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6974
[OPIK-6740] [FE] Fix experiment feedback score empty state copy by @jverre in https://github.com/comet-ml/opik/pull/6908
[NA] [INFRA] ci: add Scout feedback-sync workflow by @dsblank in https://github.com/comet-ml/opik/pull/6972
[OPIK-6779] [BE] [DOCS] feat: default Opik V2 for open source by @andrescrz in https://github.com/comet-ml/opik/pull/6977
[OPIK-6735] [BE] perf: drop O(n) ROW_NUMBER CTE in findLatestVersionsByDatasetIds by @LifeXplorer in https://github.com/comet-ml/opik/pull/6963
[issue-6969] [BE] fix: discount OpenAI Responses API cached tokens in cost by @Anuj7411 in https://github.com/comet-ml/opik/pull/6971
[DND-537] feat: support Helm 4.x while keeping Helm 3.x by @GuySaar8 in https://github.com/comet-ml/opik/pull/6981
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6984
build(deps): bump org.redisson:redisson from 4.4.0 to 4.5.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6986
build(deps): bump dev.langchain4j:langchain4j-bom from 1.15.0 to 1.16.1 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6987
build(deps): bump software.amazon.awssdk:bom from 2.45.1 to 2.46.5 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6985
[OPIK-6747] [BE] perf: defer wide-column reads past pagination in traces/spans list queries by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6930

New Contributors

@Anuj7411 made their first contribution in https://github.com/comet-ml/opik/pull/6971

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.57...2.0.58

Open source →

2.0.574 Jun 2026

[OPIK-6780] [BE] chore: materialize environment skip indexes in ClickHouse by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6957

What's Changed

[OPIK-6780] [BE] chore: materialize environment skip indexes in ClickHouse by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6957
[OPIK-6571] [FE] feat: update thread view UI to match trace/span panel by @andriidudar in https://github.com/comet-ml/opik/pull/6952
[OPIK-6652] [BE] fix: send Comet-Workspace header on Studio gateway LLM calls by @dsblank in https://github.com/comet-ml/opik/pull/6944
[NA] [SDK] fix: bump retired vertex_ai/gemini-2.0-flash test model to 2.5-flash by @alexkuzmik in https://github.com/comet-ml/opik/pull/6961
[OPIK-6702] [BE] fix: allow last_updated_at and created_at filters on Trace filters by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6958
[OPIK-6767] [SDK] feat: install Opik MCP server from opik configure by @alexkuzmik in https://github.com/comet-ml/opik/pull/6959
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6964
[OPIK-6781] Fix level enum typo (WARM→WARN) on automation_rule_evaluator_logs by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6962
[OPIK-6781] [BE] Make enum-fix migration rollback empty by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6965
[OPIK-6783] [DOCS] Use OPIK_WORKSPACE (optional) for opik-mcp instead of COMET_WORKSPACE by @awkoy in https://github.com/comet-ml/opik/pull/6960
[OPIK-6781] [DOCS] Migration rule: empty rollback for in-place column changes by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6966
[OPIK-6545][BE][FE] Add JSON file upload support for datasets by @yaricom in https://github.com/comet-ml/opik/pull/6921
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6967

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.56...2.0.57

Open source →

2.0.563 Jun 2026

[OPIK-6385] [FE] Pass thread time range to ThreadDetailsPanel traces query by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6949

What's Changed

[OPIK-6385] [FE] Pass thread time range to ThreadDetailsPanel traces query by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6949
[OPIK-6694] [SDK] feat: preserve environment ownership on prompt migrate by @alexkuzmik in https://github.com/comet-ml/opik/pull/6951
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6955
[NA] [DOCS] Add self-hosted Opik 2.0 migration guide by @jverre in https://github.com/comet-ml/opik/pull/6956

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.55...2.0.56

Open source →

2.0.552 Jun 2026

[OPIK-5269] [BE] feat: expose trace metadata on experiment item compare by @alexkuzmik in https://github.com/comet-ml/opik/pull/6940

What's Changed

[OPIK-5269] [BE] feat: expose trace metadata on experiment item compare by @alexkuzmik in https://github.com/comet-ml/opik/pull/6940
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6947
[OPIK-5428] [BE][FE] fix: show traces for all compared experiments on Go to logs by @andriidudar in https://github.com/comet-ml/opik/pull/6939
[OPIK-6766] [FE] feat: restore operator choice on Logs string/ID filters by @andriidudar in https://github.com/comet-ml/opik/pull/6946
[OPIK-6769] [BE] feat: exclude demo data from prompt version creation BI event by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6948

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.54...2.0.55

Open source →

2.0.541 Jun 2026

[OPIK-4909] [BE] fix: use pre-computed gen_ai.usage.cost from OTel by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6893

What's Changed

[OPIK-4909] [BE] fix: use pre-computed gen_ai.usage.cost from OTel by @YarivHashaiComet in https://github.com/comet-ml/opik/pull/6893
[NA] [DOCS] Promote MCP server & refresh docs-v2 by @jverre in https://github.com/comet-ml/opik/pull/6938
[NA] add weekly changelog entry for 2026-06-02 by @jverre in https://github.com/comet-ml/opik/pull/6936
[OPIK-6758] [BE] feat: assign multi-project prompts to dominant project, remove trap by @andrescrz in https://github.com/comet-ml/opik/pull/6942

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.53...2.0.54

Open source →

2.0.531 Jun 2026

[OPIK-6599] [SDK] fix: opik migrate fails loud on skipped items by @JetoPistola in https://github.com/comet-ml/opik/pull/6782

What's Changed

[OPIK-6599] [SDK] fix: opik migrate fails loud on skipped items by @JetoPistola in https://github.com/comet-ml/opik/pull/6782
[OPIK-6384] [FE] fix: update outdated Optimization Studio code snippets by @andriidudar in https://github.com/comet-ml/opik/pull/6910
[OPIK-6243][SDK] Assertions only evaluate against trace input/output — support sub-span behavior for SDK runs by @yaricom in https://github.com/comet-ml/opik/pull/6883
[OPIK-6387][P SDK][Bug]: Google ADK integration failing to render attachments in prompt parts by @yaricom in https://github.com/comet-ml/opik/pull/6879
[OPIK-6640] [BE][FE] fix: return KPI error rate as percentage (was raw count) by @awkoy in https://github.com/comet-ml/opik/pull/6866
[OPIK-6727] [BE] fix: aggregate experiment metrics across all referenced projects by @andrescrz in https://github.com/comet-ml/opik/pull/6912
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6917
[issue-6721] [DOCS] docs: add qianfan integration docs by @subash017 in https://github.com/comet-ml/opik/pull/6918
[NA] [DOCS] Improve docs-v2 home page and quickstart content by @jverre in https://github.com/comet-ml/opik/pull/6909
[OPIK-6640] [FE] fix: resolve MetricsSummary lint errors by @awkoy in https://github.com/comet-ml/opik/pull/6920
[OPIK-5435] [FE] fix: show trace logs inline on annotation queue page by @andriidudar in https://github.com/comet-ml/opik/pull/6919
[NA] [SDK] [CI] test: stabilize ADK + GenAI CI and drop flaky ADK test by @alexkuzmik in https://github.com/comet-ml/opik/pull/6916
[OPIK-6727] [BE] feat: emit dominant project for multi-project orphan experiments by @andrescrz in https://github.com/comet-ml/opik/pull/6923
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6924
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6931
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6932
build(deps-dev): bump com.diffplug.spotless:spotless-maven-plugin from 3.5.1 to 3.6.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6934
build(deps): bump software.amazon.awssdk:bom from 2.44.0 to 2.45.1 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6933
[OPIK-5087] [FE] feat: filter chip framework for Logs Traces/Spans + Threads by @andriidudar in https://github.com/comet-ml/opik/pull/6854
[OPIK-6727] [FE] fix: drop active-project filter from Trial Page constituent experiments fetch by @andrescrz in https://github.com/comet-ml/opik/pull/6935
[OPIK-6187] [BE] feat: optimization project migration job (V1 → V2 auto-inference) by @thiagohora in https://github.com/comet-ml/opik/pull/6828
[OPIK-6743] [BE] feat: add BI event for prompt version creation by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6915

New Contributors

@subash017 made their first contribution in https://github.com/comet-ml/opik/pull/6918

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.52...2.0.53

Open source →

2.0.5229 May 2026Deprecated

[OPIK-6707] [CI] feat: v2 E2E post-merge workflow + deprecate v1 triggers by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6897

What's Changed

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6898
[NA] [DOCS] docs(v2): rework Prompt Library section by @petrotiurin in https://github.com/comet-ml/opik/pull/6835
[NA] [BE] fix: populate opik_prompts.name on /experiments/execute by @petrotiurin in https://github.com/comet-ml/opik/pull/6895
[OPIK-6707] [CI] fix(e2e): tier-inclusive grep so t3 ⊇ t2 ⊇ t1 by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6899
[OPIK-6707] [CI] feat: v2 E2E post-merge workflow + deprecate v1 triggers by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6897
[OPIK-6167] [FE] fix: avoid double right border in grouped rows by @awkoy in https://github.com/comet-ml/opik/pull/6693
[OPIK-6697] [SDK] feat(migrate): pass copy_from coords on dataset version replay by @JetoPistola in https://github.com/comet-ml/opik/pull/6870
[NA] [BE][FE] feat: surface prompt version_number, rename "commit" to "version" in prompt UI by @petrotiurin in https://github.com/comet-ml/opik/pull/6894
[NA] [BE] fix: update PromptVersionInfo constructor in test for versionNumber field by @petrotiurin in https://github.com/comet-ml/opik/pull/6902
[OPIK-6732] [FE] feat: remove Restore button from v2 Prompt version UI by @petrotiurin in https://github.com/comet-ml/opik/pull/6903
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6901
[OPIK-6608] [SDK & FE] fix: strip data URI prefix when extracting base64 attachments by @alexkuzmik in https://github.com/comet-ml/opik/pull/6890
[OPIK-6626] [FE] feat: surface prompt environments across prompt UIs by @aadereiko in https://github.com/comet-ml/opik/pull/6892
[OPIK-6734] [BE] fix: resolve ClassCastException in thread-level online evaluation rules with filters by @ldaugusto in https://github.com/comet-ml/opik/pull/6904
[OPIK-6468] [SDK] feat: prompt environments in Python and TypeScript SDKs by @petrotiurin in https://github.com/comet-ml/opik/pull/6872
[NA] Add HRPO optimizer to SDK README by @anmorgan24 in https://github.com/comet-ml/opik/pull/6906
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6907
[OPIK-6542] [DOCS] docs: add opik migrate CLI documentation page by @alexkuzmik in https://github.com/comet-ml/opik/pull/6878

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.51...2.0.52

Open source →

2.0.5128 May 2026

[OPIK-6703] [BE] fix: zero-rows retry guard + v2-client INSERT...SELECT on dataset_item_versions by @thiagohora in https://github.com/comet-ml/opik/pu

What's Changed

[OPIK-6703] [BE] fix: zero-rows retry guard + v2-client INSERT...SELECT on dataset_item_versions by @thiagohora in https://github.com/comet-ml/opik/pull/6871
[OPIK-6707] [CI] feat: add v2 E2E PR-gate workflow + wire Allure reporter by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6876
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6891
[NA] [SDK] feat: prevent colour changes on built-in environments by @petrotiurin in https://github.com/comet-ml/opik/pull/6885
[OPIK-0000][BE] Add environment to promptVersion for backward compatibility by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6896

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.50...2.0.51

Open source →

2.0.5028 May 2026

[OPIK-6457] [FE] feat: prompts UX improvements across playground, traces, and library by @aadereiko in https://github.com/comet-ml/opik/pull/6771

What's Changed

[OPIK-6457] [FE] feat: prompts UX improvements across playground, traces, and library by @aadereiko in https://github.com/comet-ml/opik/pull/6771
[OPIK-6465] [SDK] refactor(runner): retire config patterns, add prompt-usage detection in snapshot by @petrotiurin in https://github.com/comet-ml/opik/pull/6801
[OPIK-6701] [BE] feat: assign ambiguous datasets to their dominant project by @andrescrz in https://github.com/comet-ml/opik/pull/6884
[OPIK-6696] [BE] feat(datasets): copy_from coords on createOrUpdateDatasetItems + applyDatasetItemChanges by @JetoPistola in https://github.com/comet-ml/opik/pull/6867
[OPIK-6597] [QA] feat: Online Evaluation smoke (LLM-judge + Python rule) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6874
[OPIK-6626] [BE] feat: support multiple environments per prompt version by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6873
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6888

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.49...2.0.50

Open source →

2.0.4927 May 2026

[NA] [SDK] ci(load): richer job-summary table (volume, submit time, rate, total) by @alexkuzmik in https://github.com/comet-ml/opik/pull/6865

What's Changed

[NA] [SDK] ci(load): richer job-summary table (volume, submit time, rate, total) by @alexkuzmik in https://github.com/comet-ml/opik/pull/6865
[OPIK-6633] [CI] Pin Docker release builds to tag + idempotent helm push by @GuySaar8 in https://github.com/comet-ml/opik/pull/6869
[OPIK-6652] [FE][BE] Route optimization studio LLM calls through backend gateway by @jverre in https://github.com/comet-ml/opik/pull/6830
[OPIK-6137] [QA] feat: Test Suites + Prompt Playground smokes (SDK + UI variants) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6868
docs(changelog): add 2026-05-26 weekly changelog entry by @jverre in https://github.com/comet-ml/opik/pull/6846
[OPIK-6690] [SDK] fix: attach experiment prompts to each generated trace by @petrotiurin in https://github.com/comet-ml/opik/pull/6864
[OPIK-6695] [SDK] fix: preserve environment on cascaded traces and spans in migrate dataset by @alexkuzmik in https://github.com/comet-ml/opik/pull/6875
[OPIK-6525] [BE][FE] Annotation queue single-pass mode by @miguelgrc in https://github.com/comet-ml/opik/pull/6792

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.48...2.0.49

Open source →

2.0.4826 May 2026

[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6841

What's Changed

[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6841
[OPIK-6128] [QA] feat: Trace Explore smoke (SDK-create + UI-verify) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6823
build(deps-dev): bump org.apache.maven.plugins:maven-site-plugin from 3.21.0 to 3.22.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6842
build(deps): bump google-protobuf.version from 4.34.0 to 4.35.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6843
build(deps): bump opentelmetry.version from 2.27.0 to 2.28.1 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6844
[OPIK-6529] [BE] feat(analytics): runner pairing/disconnect events with runner_type + reason by @alexkuzmik in https://github.com/comet-ml/opik/pull/6745
[OPIK-6656] [HELM] feat: run helm-docs locally via .hooks/pre-commit by @JetoPistola in https://github.com/comet-ml/opik/pull/6840
[OPIK-6583] [INFRA] [CI] fix: resolve remaining shellcheck findings in workflows by @JetoPistola in https://github.com/comet-ml/opik/pull/6780
[OPIK-6578] [DOCS] feat: restructure jira-ticket commands to WHY/WHAT body + HOW comment by @JetoPistola in https://github.com/comet-ml/opik/pull/6757
[OPIK-6576] [SDK] feat: add load-test suite for traces, spans, and attachments by @alexkuzmik in https://github.com/comet-ml/opik/pull/6829
[DND-998] Build multi-arch docker images on every trigger by @liyaka in https://github.com/comet-ml/opik/pull/6852
[OPIK-6191][BE] Scripts for alerts project migration by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6849
[NA] [SDK] revert(load): remove test_concurrent_writers_race_stress by @alexkuzmik in https://github.com/comet-ml/opik/pull/6853
[OPIK-000][BE]Fix Alerts migration job by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6855
[NA] [SDK] test(load): add think-time to test_burst_single_loop by @alexkuzmik in https://github.com/comet-ml/opik/pull/6856
[NA] [SDK] ci(load): drop xdist concurrency from -n auto to -n 2 by @alexkuzmik in https://github.com/comet-ml/opik/pull/6857
[OPIK-6595] [QA] feat: Dataset CRUD smoke (SDK-create + UI-create variants) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6851
[OPIK-6447] [DEV] feat: auto-detect sibling ollie-assist checkout by @awkoy in https://github.com/comet-ml/opik/pull/6687
[OPIK-6189] [BE] feat: remove dashboards from V1/V2 workspace determination check by @andrescrz in https://github.com/comet-ml/opik/pull/6860
[NA] [SDK] ci(load): quiet httpx INFO stream + grant checks:write so the run goes green by @alexkuzmik in https://github.com/comet-ml/opik/pull/6861
[OPIK-6596] [QA] feat: Experiments smoke (SDK-create + UI-verify, deterministic evaluator) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6859
[OPIK-6646] [BE] fix: normalize project names to handle trailing whitespace by @JetoPistola in https://github.com/comet-ml/opik/pull/6845

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.47...2.0.48

Open source →

2.0.4725 May 2026

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6824

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6824
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6821
[OPIK-6190] [BE] feat: implement migration job to split multi-project automation rules by @ldaugusto in https://github.com/comet-ml/opik/pull/6798
[OPIK-6638] [DOCS] docs(v2): add Python opik-mcp setup + usage page by @awkoy in https://github.com/comet-ml/opik/pull/6816
[OPIK-6191] [BE] feat: implement migration job to assign project_id to alerts and split multi-project alerts by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6815
[NA] [SDK] fix(py): preserve version_number when rebuilding PromptVersionDetail by @petrotiurin in https://github.com/comet-ml/opik/pull/6822
[OPIK-6643] [SDK] feat: add version_number filter to prompt versions OQL by @petrotiurin in https://github.com/comet-ml/opik/pull/6820
[NA] [SDK] fix(harbor): support both _setup_environment and _setup_agent_environment by @alexkuzmik in https://github.com/comet-ml/opik/pull/6834
[NA] [SDK] test(crewai): tolerate v1 agent reasoning-loop spans in cy… by @alexkuzmik in https://github.com/comet-ml/opik/pull/6833
[OPIK-6650] [SDK] fix: filter conflicting keys from dataset item data before unpacking by @jverre in https://github.com/comet-ml/opik/pull/6826
[NA] [SDK] fix: AgentSpec integration bugs reported by Sarah Ostermeier by @jverre in https://github.com/comet-ml/opik/pull/6765
[NA] [CI] fix(workflow): gate pr-auto-assign success echo behind successful gh pr edit by @JetoPistola in https://github.com/comet-ml/opik/pull/6781

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.46...2.0.47

Open source →

2.0.4622 May 2026

[OPIK-6620][BE] Implement support on the backend side of AND Logic Option to Alerts by @yaricom in https://github.com/comet-ml/opik/pull/6804

What's Changed

[OPIK-6620][BE] Implement support on the backend side of AND Logic Option to Alerts by @yaricom in https://github.com/comet-ml/opik/pull/6804
[OPIK-6467] [SDK] feat: add prompt version support by @petrotiurin in https://github.com/comet-ml/opik/pull/6805
[OPIK-6621] [FE] feat: add AND/OR grouping to alert conditions by @andriidudar in https://github.com/comet-ml/opik/pull/6803
[OPIK-6188] [BE] feat: implement prompt project migration job (D4) by @andrescrz in https://github.com/comet-ml/opik/pull/6808

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.45...2.0.46

Open source →

2.0.4521 May 2026

[OPIK-6634] [BE] feat: add version_number filter to prompt versions list by @petrotiurin in https://github.com/comet-ml/opik/pull/6806

What's Changed

[OPIK-6634] [BE] feat: add version_number filter to prompt versions list by @petrotiurin in https://github.com/comet-ml/opik/pull/6806
[NA] [BE] refactor: use version number in restored prompt description by @petrotiurin in https://github.com/comet-ml/opik/pull/6811
[NA] [FE] docs: update Python SDK examples in Use This Prompt dialog by @petrotiurin in https://github.com/comet-ml/opik/pull/6812
[OPIK-6311] [BE] test: assert full page-metadata parity across before/after-aggregation tests by @thiagohora in https://github.com/comet-ml/opik/pull/6775
[OPIK-6186] [BE] feat: dataset project migration job (V1 → V2 auto-inference) by @thiagohora in https://github.com/comet-ml/opik/pull/6799

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.44...2.0.45

Open source →

2.0.4421 May 2026

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6810

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6810
[OPIK-6408] feat: add visual comparison tests POC by @natagh23 in https://github.com/comet-ml/opik/pull/6793
[NA] [FE] replace Get Help with View Docs link on get started page by @jverre in https://github.com/comet-ml/opik/pull/6809

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.43...2.0.44

Open source →

2.0.4321 May 2026Security

[OPIK-6616] fix(docker): upgrade nghttp2-libs in opik-frontend (CVE-2026-27135) by @Nimrod007 in https://github.com/comet-ml/opik/pull/6788

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6779
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6778
[OPIK-5333] Inject trace spans into LLM-as-judge prompts; enrich thread {{context}} with tool calls by @aadereiko in https://github.com/comet-ml/opik/pull/6751
[OPIK-6579] [BE] feat: extend experiment project migration to handle deleted-project and no-inference tail by @andrescrz in https://github.com/comet-ml/opik/pull/6785
[NA] [QA] feat: honor OPIK_VERSION_OVERRIDE in TS suite global setup by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6795
[OPIK-6624] [CI] fix(release): skip on 403 "cannot publish over" instead of failing by @JetoPistola in https://github.com/comet-ml/opik/pull/6797
[OPIK-6501] [SDK] feat: prompt masks by @petrotiurin in https://github.com/comet-ml/opik/pull/6710
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6791
[OPIK-6454] [BE] feat: add sequential prompt version numbers by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6789
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6802
[OPIK-6613] fix(deps): bump docker base + urllib3 to clear CRITICAL+HIGH CVEs in opik-python-backend by @Nimrod007 in https://github.com/comet-ml/opik/pull/6783
[OPIK-6186] [BE] feat: add experiment and dataset migration skip columns to workspaces by @thiagohora in https://github.com/comet-ml/opik/pull/6774
[OPIK-6623] fix(security): bump Corretto + netty + jetty + httpclient5 to clear HIGH CVEs in opik-backend by @Nimrod007 in https://github.com/comet-ml/opik/pull/6796
[OPIK-6616] fix(docker): upgrade nghttp2-libs in opik-frontend (CVE-2026-27135) by @Nimrod007 in https://github.com/comet-ml/opik/pull/6788
[NA] [FE] feat: show dataset version inline with item source in experiments by @olesya-comet in https://github.com/comet-ml/opik/pull/6794
[OPIK-6547] [INFRA] ci: add Scout issue triage workflow by @dsblank in https://github.com/comet-ml/opik/pull/6776

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.42...2.0.43

Open source →

2.0.4220 May 2026

[OPIK-6311] [BE] perf: slim count path + bypass traces hop in target-projects pre-query by @thiagohora in https://github.com/comet-ml/opik/pull/6756

What's Changed

[OPIK-6311] [BE] perf: slim count path + bypass traces hop in target-projects pre-query by @thiagohora in https://github.com/comet-ml/opik/pull/6756
[OPIK-6574] [SDK] feat: add opik migrate prompt command (Slice 6) by @JetoPistola in https://github.com/comet-ml/opik/pull/6752
[OPIK-6582] [INFRA] [CI] fix: quote SC2086 vars across 6 high-density workflow files by @JetoPistola in https://github.com/comet-ml/opik/pull/6753

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.41...2.0.42

Open source →

2.0.4119 May 2026

[OPIK-6581] [INFRA] [CI] fix: quote GITHUB_OUTPUT and GITHUB_STEP_SUMMARY redirects by @JetoPistola in https://github.com/comet-ml/opik/pull/6749

What's Changed

[OPIK-6581] [INFRA] [CI] fix: quote GITHUB_OUTPUT and GITHUB_STEP_SUMMARY redirects by @JetoPistola in https://github.com/comet-ml/opik/pull/6749
[OPIK-6456] [BE] feat: add prompt masks for non-destructive prompt resolution by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6731
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6766
[NA] [SDK] fix: preserve StartSpanParameters when merging opik_args by @pragnyanramtha in https://github.com/comet-ml/opik/pull/6735
[OPIK-6543] Fix MEMORY_LIMIT_EXCEEDED in span/trace usage queries by @LifeXplorer in https://github.com/comet-ml/opik/pull/6760
[OPIK-6499] [QA] feat: add SDK clients and use public Opik TS SDK for backend inspection by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6768
[NA] [DOCS] Fix broken documentation links by @jverre in https://github.com/comet-ml/opik/pull/6769
[OPIK-6532] [SDK] feat: cascade optimizations on opik migrate dataset (Slice 5) by @JetoPistola in https://github.com/comet-ml/opik/pull/6746
[OPIK-6455] [BE] feat: add environment ownership to prompt versions by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6767
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6772
[OPIK-6500] [QA] feat: add base fixtures for Opik 2.0 E2E suite by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6770
[OPIK-6524][BE] Cost Tracking: Add Missing Models and Providers - Elastic Inference Service OTEL by @yaricom in https://github.com/comet-ml/opik/pull/6759

New Contributors

@pragnyanramtha made their first contribution in https://github.com/comet-ml/opik/pull/6735

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.40...2.0.41

Open source →

2.0.4019 May 2026

[OPIK-6580] [INFRA] [CI] fix: clear actionlint events and expression findings by @JetoPistola in https://github.com/comet-ml/opik/pull/6747

What's Changed

[OPIK-6580] [INFRA] [CI] fix: clear actionlint events and expression findings by @JetoPistola in https://github.com/comet-ml/opik/pull/6747
[OPIK-6516] [SDK] feat(runner): add opik connect/endpoint stop to cleanly terminate local runners by @alexkuzmik in https://github.com/comet-ml/opik/pull/6730
[NA] [BE] fix: stop BaseRedisSubscriberTest.shouldRemoveConsumerOnStop flaking by @thiagohora in https://github.com/comet-ml/opik/pull/6754
[OPIK-6519] [BE] perf: replace FINAL with LIMIT 1 BY in trace threads closing candidate query by @thiagohora in https://github.com/comet-ml/opik/pull/6748
[NA] [BE] Apply Spotless formatting to backend sources by @thiagohora in https://github.com/comet-ml/opik/pull/6750
[NA] [CI] [GHA] security: use npm ci instead of npm install in Docker and lint workflows by @EdvardLaub in https://github.com/comet-ml/opik/pull/6755

New Contributors

@EdvardLaub made their first contribution in https://github.com/comet-ml/opik/pull/6755

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.39...2.0.40

Open source →

2.0.3918 May 2026

[OPIK-6482] [BE] fix: add (workspace_id, scope, id) index on dashboards to avoid filesort OOM by @thiagohora in https://github.com/comet-ml/opik/pull/

What's Changed

[OPIK-6482] [BE] fix: add (workspace_id, scope, id) index on dashboards to avoid filesort OOM by @thiagohora in https://github.com/comet-ml/opik/pull/6733
[OPIK-6511] [FE] fix: hide Assistant sidebar wrapper when ollieEnabled toggle is off by @LifeXplorer in https://github.com/comet-ml/opik/pull/6725
[OPIK-3662] [INFRA] feat: add actionlint workflow validation by @JetoPistola in https://github.com/comet-ml/opik/pull/6600

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.38...2.0.39

Open source →

2.0.3818 May 2026

[OPIK-5333] [BE]: agentic tools online scoring threads; by @aadereiko in https://github.com/comet-ml/opik/pull/6719

What's Changed

[OPIK-5333] [BE]: agentic tools online scoring threads; by @aadereiko in https://github.com/comet-ml/opik/pull/6719
[OPIK-6464] [SDK] feat: add client-side prompt caching and trace metadata injection by @petrotiurin in https://github.com/comet-ml/opik/pull/6681
[OPIK-6497] [SDK][FE] feat(runner): notify backend on close for instant disconnect by @alexkuzmik in https://github.com/comet-ml/opik/pull/6708
[OPIK-6505] [BE] Split stats query and gate legacy feedback_scores UNION by @thiagohora in https://github.com/comet-ml/opik/pull/6713
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6734
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6736
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6737
build(deps): bump dev.langchain4j:langchain4j-bom from 1.14.0 to 1.15.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6738
build(deps-dev): bump com.diffplug.spotless:spotless-maven-plugin from 3.4.0 to 3.5.1 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6739
build(deps): bump org.redisson:redisson from 4.3.1 to 4.4.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6740
[INFRA] feat: respect pre-set port env vars when initializing worktree ports by @ntilwalli in https://github.com/comet-ml/opik/pull/6558
[OPIK-6544] [FE] feat: add edit option to dataset item row menu by @JetoPistola in https://github.com/comet-ml/opik/pull/6741
[NA] [QA] fix: wait for traces table to fully render before scanning Moderation header by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6743
docs(changelog): weekly changelog for 2026-05-19 by @jverre in https://github.com/comet-ml/opik/pull/6742
[OPIK-6417] [SDK] feat: cascade trace + span comments in opik migrate dataset by @JetoPistola in https://github.com/comet-ml/opik/pull/6714

New Contributors

@ntilwalli made their first contribution in https://github.com/comet-ml/opik/pull/6558

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.37...2.0.38

Open source →

2.0.3715 May 2026

[OPIK-5333][BE]: agentic tools online scoring; by @aadereiko in https://github.com/comet-ml/opik/pull/6649

What's Changed

[OPIK-5333][BE]: agentic tools online scoring; by @aadereiko in https://github.com/comet-ml/opik/pull/6649
[OPIK-6550] [BE] perf: skip row-numbering CTE in version-id lookups by @LifeXplorer in https://github.com/comet-ml/opik/pull/6727

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.36...2.0.37

Open source →

2.0.3615 May 2026Deprecated

[OPIK-6539] [BE][FE] fix: suppress Gemma reasoning, bump deprecated Gemini/Vertex default models by @AndreiCautisanu in https://github.com/comet-ml/op…

What's Changed

[OPIK-6515] [FE][BE] fix: gate onboarding demo-loading flow on demoDataEnabled toggle by @andriidudar in https://github.com/comet-ml/opik/pull/6704
[OPIK-6373] [FE] feat: consume lite workspace endpoint with safe fallback by @andriidudar in https://github.com/comet-ml/opik/pull/6676
[OPIK-6539] [BE][FE] fix: suppress Gemma reasoning, bump deprecated Gemini/Vertex default models by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6706
[OPIK-6493] [BE] fix: assign palette color to auto-created environments by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6690
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6712
[OPIK-6498] [QA] feat: SDK driver — FastAPI bridge for Opik Python SDK by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6707
[NA] [BE] fix(lock): prevent permit orphans and counter underflow in bestEffortLock by @andrescrz in https://github.com/comet-ml/opik/pull/6717
[NA] [BE] feat(otel): emit base2 exponential histograms for HTTP server metrics by @thiagohora in https://github.com/comet-ml/opik/pull/6715
[NA] [BE] fix(migration): isolate experiment-project-migration on a dedicated scheduler by @andrescrz in https://github.com/comet-ml/opik/pull/6723
[OPIK-6551] [BE] feat: add ollieEnabled service toggle from TOGGLE_OLLIE_ENABLED by @LifeXplorer in https://github.com/comet-ml/opik/pull/6716

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.35...2.0.36

Open source →

2.0.3514 May 2026

[OPIK-6434] [BE][FE] chore: remove TOGGLE_CSV_UPLOAD_ENABLED toggle by @LifeXplorer in https://github.com/comet-ml/opik/pull/6666

What's Changed

[OPIK-6434] [BE][FE] chore: remove TOGGLE_CSV_UPLOAD_ENABLED toggle by @LifeXplorer in https://github.com/comet-ml/opik/pull/6666
[OPIK-6416] [SDK] feat: cascade experiments and traces in opik migrate dataset by @JetoPistola in https://github.com/comet-ml/opik/pull/6658
[OPIK-5723] [SCRIPTS] feat: surface Gemma 4 + clean dead Gemma in Gemini sync by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6701

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.34...2.0.35

Open source →

2.0.3414 May 2026

[OPIK-6390] [BE] fix: prevent silent dataset-item loss when items_total drifts by @thiagohora in https://github.com/comet-ml/opik/pull/6678

What's Changed

[OPIK-6390] [BE] fix: prevent silent dataset-item loss when items_total drifts by @thiagohora in https://github.com/comet-ml/opik/pull/6678
[OPIK-6167] [FE] fix: rename Test suite column to Item source by @awkoy in https://github.com/comet-ml/opik/pull/6504
[NA] [SDK][FE] feat(local-runner): reorganize CLI, Rich error UX, auto-configure, pairing context card by @alexkuzmik in https://github.com/comet-ml/opik/pull/6691
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6698
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6699

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.33...2.0.34

Open source →

2.0.3313 May 2026

[OPIK-6389][P SDK] ADK integration: OpikADKOtelTracer kills all OpenTelemetry spans and re-patches on every request via __setstate__ by @yaricom in ht

What's Changed

[OPIK-6389][P SDK] ADK integration: OpikADKOtelTracer kills all OpenTelemetry spans and re-patches on every request via setstate by @yaricom in https://github.com/comet-ml/opik/pull/6680
[NA] [BE] fix: prevent semaphore permits from going negative in LockService by @andrescrz in https://github.com/comet-ml/opik/pull/6688
[NA] [BE] fix(python-backend): one metric exporter per pod (move rq_worker metrics to parent) by @thiagohora in https://github.com/comet-ml/opik/pull/6683
[OPIK-6383] [BE][SDK] Fix empty trials in Optimization Studio Demo Template run by @thiagohora in https://github.com/comet-ml/opik/pull/6689

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.32...2.0.33

Open source →

2.0.3213 May 2026

Revise README links for Opik documentation updates by @Yuto-24 in https://github.com/comet-ml/opik/pull/6670

What's Changed

Revise README links for Opik documentation updates by @Yuto-24 in https://github.com/comet-ml/opik/pull/6670
[OPIK-6495] [BE] fix: add demo test-suite experiment names to DemoData exclusion list by @jverre in https://github.com/comet-ml/opik/pull/6673
[OPIK-6266][FE] environments bug fixes by @aadereiko in https://github.com/comet-ml/opik/pull/6674
docs(changelog): weekly changelog for 2026-05-12 by @jverre in https://github.com/comet-ml/opik/pull/6679
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6684
[OPIK-6447] [FE] feat: gated local-dev wrapper for assistant sidebar by @awkoy in https://github.com/comet-ml/opik/pull/6662
[OPIK-6126] [QA] feat: e2e infrastructure foundation (env config + workspace teardown) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6677

New Contributors

@Yuto-24 made their first contribution in https://github.com/comet-ml/opik/pull/6670

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.31...2.0.32

Open source →

2.0.3112 May 2026

[OPIK-6472] [SDK] fix: preserve environment field in span/trace update messages by @petrotiurin in https://github.com/comet-ml/opik/pull/6665

What's Changed

[OPIK-6472] [SDK] fix: preserve environment field in span/trace update messages by @petrotiurin in https://github.com/comet-ml/opik/pull/6665
[NA] [BE] fix: release ExperimentProjectMigrationJob lock on completion by @andrescrz in https://github.com/comet-ml/opik/pull/6675

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.30...2.0.31

Open source →

2.0.3012 May 2026

[NA] [CI] fix: add fallback matrix versions for forked PRs by @petrotiurin in https://github.com/comet-ml/opik/pull/6659

What's Changed

[NA] [CI] fix: add fallback matrix versions for forked PRs by @petrotiurin in https://github.com/comet-ml/opik/pull/6659
[OPIK-6434] [BE][FE] chore: remove TOGGLE_COLLABORATORS_TAB_ENABLED toggle by @LifeXplorer in https://github.com/comet-ml/opik/pull/6656
[OPIK-6434] [BE][FE] chore: remove TOGGLE_RUNNERS_ENABLED toggle by @LifeXplorer in https://github.com/comet-ml/opik/pull/6663
[OPIK-6376][BE] ExperimentItemProcessor.process silently masks agent LLM failures as empty-output traces by @yaricom in https://github.com/comet-ml/opik/pull/6657
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6668
[OPIK-6478] docs: Document programmatic dataset/version tagging by @fschlz in https://github.com/comet-ml/opik/pull/6667
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6672
[OPIK-6429] [FE] feat: per-model OpenAI reasoning_effort capability map by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6644
[OPIK-4509] [FE] fix: annotation queue reason persistence and navigation order by @andriidudar in https://github.com/comet-ml/opik/pull/6664

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.29...2.0.30

Open source →

2.0.2911 May 2026

[OPIK-6411] [BE] feat: expose MIGRATION_EXCLUDED_WORKSPACE_IDS size as a metric by @thiagohora in https://github.com/comet-ml/opik/pull/6647

What's Changed

[OPIK-6411] [BE] feat: expose MIGRATION_EXCLUDED_WORKSPACE_IDS size as a metric by @thiagohora in https://github.com/comet-ml/opik/pull/6647
fix(sdk): add None input validation to heuristic metrics by @zhoufengen in https://github.com/comet-ml/opik/pull/6543
[OPIK-6268] [SDK] feat: add environment support by @petrotiurin in https://github.com/comet-ml/opik/pull/6622
[OPIK-6266][FE]: initial commit for the trace and spans envs; by @aadereiko in https://github.com/comet-ml/opik/pull/6630

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.28...2.0.29

Open source →

2.0.2811 May 2026

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6651

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6651
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6650
build(deps): bump software.amazon.jdbc:aws-advanced-jdbc-wrapper from 3.3.0 to 4.0.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6652
[OPIK-6145] [FE] feat: lazy load attachments in traces and spans tables by @andriidudar in https://github.com/comet-ml/opik/pull/6645
[OPIK-6448] [FE] refactor: remove TOGGLE_ALERTS_ENABLED feature flag by @andriidudar in https://github.com/comet-ml/opik/pull/6655
[OPIK-6375][BE] LlmProviderAnthropic.validateRequest rejects valid Playground/SDK requests with null maxCompletionTokens by @yaricom in https://github.com/comet-ml/opik/pull/6646

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.27...2.0.28

Open source →

2.0.278 May 2026

[OPIK-6391] [FE] fix: send thread_model_id when adding thread comments by @andriidudar in https://github.com/comet-ml/opik/pull/6639

What's Changed

[OPIK-6391] [FE] fix: send thread_model_id when adding thread comments by @andriidudar in https://github.com/comet-ml/opik/pull/6639
fix(sdk): surface evaluation task failures by @mindbomber in https://github.com/comet-ml/opik/pull/6624
[OPIK-6339] [PY-SDK] feat: respect search rate limits in search_traces and search_spans by @alexkuzmik in https://github.com/comet-ml/opik/pull/6629
[OPIK-6368] [BE] feat: auto-create environments from trace ingestion by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6638
[OPIK-5745] [BE] feat: add LLM tools for full trace context in eval suite assertions by @itamargolan in https://github.com/comet-ml/opik/pull/6511
[OPIK-6409] [BE] feat: add V1 workspace allowlist by @thiagohora in https://github.com/comet-ml/opik/pull/6631
[NA] [PY-SDK] fix: run worker_threads=1 in the caller thread by @alexkuzmik in https://github.com/comet-ml/opik/pull/6641
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6642
[OPIK-6443] [PY-SDK] fix: prevent silent data loss in client.end() due to drain/attachment re-enqueue race by @ldaugusto in https://github.com/comet-ml/opik/pull/6643
[OPIK-6444] [PY-SDK] fix: improve streamer reliability by @alexkuzmik in https://github.com/comet-ml/opik/pull/6648

New Contributors

@mindbomber made their first contribution in https://github.com/comet-ml/opik/pull/6624

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.26...2.0.27

Open source →

2.0.268 May 2026

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6634

What's Changed

[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6634
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6636
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6637
[OPIK-4933] [BE] feat: add workspaces metadata table for version, first-trace, migration state by @thiagohora in https://github.com/comet-ml/opik/pull/6615

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.25...2.0.26

Open source →

2.0.258 May 2026

[OPIK-6309] [FE] feat: unify top bars across side panels by @andriidudar in https://github.com/comet-ml/opik/pull/6627

What's Changed

[OPIK-6309] [FE] feat: unify top bars across side panels by @andriidudar in https://github.com/comet-ml/opik/pull/6627
[OPIK-6177] [BE] fix: dedupe by stable dataset_item_id in experiment comparison by @JetoPistola in https://github.com/comet-ml/opik/pull/6507
[NA] [GHA] chore: upsert PR linter comment instead of spamming by @petrotiurin in https://github.com/comet-ml/opik/pull/6632
[OPIK-5694] [BE] fix: eliminate FORMAT Values fast-path noise in batch inserts by @ldaugusto in https://github.com/comet-ml/opik/pull/6572
[OPIK-6370] [BE] fix: tolerate plain-string UUIDs in Redis stream deserialization by @thiagohora in https://github.com/comet-ml/opik/pull/6610
[OPIK-6260] [BE] [FE] feat: display recent activity on project home page by @miguelgrc in https://github.com/comet-ml/opik/pull/6595
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6633
[OPIK-6265] [BE] feat: add environment field to spans, traces, and threads by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6608

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.24...2.0.25

Open source →

2.0.247 May 2026

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6625

What's Changed

[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6625
[OPIK-6308] [BE] feat: tune shared Jersey HTTP client with pooling and timeouts by @andrescrz in https://github.com/comet-ml/opik/pull/6623
[OPIK-6404] [BE] chore: update default environment colors by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6626

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.23...2.0.24

Open source →

2.0.236 May 2026

[OPIK-6334] [FE] feat: add skeleton loaders to Prompt and Agent Playgrounds by @andriidudar in https://github.com/comet-ml/opik/pull/6618

What's Changed

[OPIK-6334] [FE] feat: add skeleton loaders to Prompt and Agent Playgrounds by @andriidudar in https://github.com/comet-ml/opik/pull/6618
[OPIK-6372] [SDK] fix: merge duplicate Create messages in local emulator by @alexkuzmik in https://github.com/comet-ml/opik/pull/6613
[OPIK-6334] [FE] fix: render page-surface assistant loader and error state full-bleed by @andriidudar in https://github.com/comet-ml/opik/pull/6620
[OPIK-6348] [BE] fix: rename BI event key 'environment' to 'config_environment' by @petrotiurin in https://github.com/comet-ml/opik/pull/6612
[OPIK-6346] Silent-skip playground logging when permissions are missing by @LifeXplorer in https://github.com/comet-ml/opik/pull/6574
[OPIK-6307] [FE] feat: redesign Run experiment flow in Prompt Playground by @awkoy in https://github.com/comet-ml/opik/pull/6571

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.22...2.0.23

Open source →

2.0.226 May 2026Security

[OPIK-6365] [SDK] chore: mitigate litellm CVE-2026-42208 (exclude 1.81.*-1.83.6) by @andrescrz in https://github.com/comet-ml/opik/pull/6602

What's Changed

[OPIK-6244] [BE][FE] feat: per-model Anthropic capability map (Opus 4.7 sampling params + xhigh effort) by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6523
[OPIK-6360] [INFRA] feat: add force_regen toggle to provider model sync by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6589
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6597
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6598
[OPIK-6263] [BE] feat: seed default environments for workspaces by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6593
[OPIK-6296] [DOCS] feat: auto-refresh PR description on git push to prevent drift by @JetoPistola in https://github.com/comet-ml/opik/pull/6546
[OPIK-6365] [SDK] chore: mitigate litellm CVE-2026-42208 (exclude 1.81.*-1.83.6) by @andrescrz in https://github.com/comet-ml/opik/pull/6602
[OPIK-6269] [FE] feat: improve agent configuration diff view by @andriidudar in https://github.com/comet-ml/opik/pull/6594
[OPIK-6334] [FE] feat: add skeleton loaders on main list pages by @andriidudar in https://github.com/comet-ml/opik/pull/6604
[OPIK-6057] [BE] fix: skip online-scoring feedback rows when judge returns null by @ldaugusto in https://github.com/comet-ml/opik/pull/6577
[NA] [DOCS] Add changelog for 2026-05-05 by @juanferrub in https://github.com/comet-ml/opik/pull/6611
[OPIK-6365] [BE] fix: python sandbox packages to match litellm 1.83.7 pin by @andrescrz in https://github.com/comet-ml/opik/pull/6609
[NA] [SDK] chore: remove redundant litellm version exclusions by @petrotiurin in https://github.com/comet-ml/opik/pull/6607
[OPIK-6269] [FE] feat: align diff dialog and version list with Figma by @andriidudar in https://github.com/comet-ml/opik/pull/6605
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6616
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6617

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.21...2.0.22

Open source →

2.0.215 May 2026

[OPIK-6274][P SDK] Enable OTEL integration test by @yaricom in https://github.com/comet-ml/opik/pull/6562

What's Changed

[OPIK-6274][P SDK] Enable OTEL integration test by @yaricom in https://github.com/comet-ml/opik/pull/6562
[OPIK-6264] [BE] feat: add environments CRUD API by @BorisTkachenko in https://github.com/comet-ml/opik/pull/6563
[OPIK-6333] [FE] Confirm before leaving agent playground while a run is in progress by @awkoy in https://github.com/comet-ml/opik/pull/6566
[OPIK-6311] [BE] perf: push Top-N filter into dataset_items_aggr_resolved CTE by @thiagohora in https://github.com/comet-ml/opik/pull/6559
[OPIK-6305] [BE] fix: fix user attribution and demo filtering for agent config BI events by @petrotiurin in https://github.com/comet-ml/opik/pull/6550
[OPIK-5694] [BE] fix: stop emitting NULL into non-nullable last_updated_at on batch insert by @ldaugusto in https://github.com/comet-ml/opik/pull/6569
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6565
[OPIK-6337] [DOCS] Update permissions table to match Apr 24 revamp by @LifeXplorer in https://github.com/comet-ml/opik/pull/6575
[NA] [BE] Update model prices file by @CometActions in https://github.com/comet-ml/opik/pull/6579
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6580
[issue-6421] [FE] fix: truncate v1 SME threads list and surface items load errors by @andriidudar in https://github.com/comet-ml/opik/pull/6570
build(deps): bump dev.langchain4j:langchain4j-bom from 1.13.0 to 1.14.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6581
build(deps): bump org.jdbi:jdbi3-stringtemplate4 from 3.52.0 to 3.53.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6582
build(deps): bump software.amazon.awssdk:bom from 2.42.4 to 2.44.0 in /apps/opik-backend by @dependabot[bot] in https://github.com/comet-ml/opik/pull/6583
[OPIK-6360] [INFRA] fix: emit labels for every dropdown entry in regenerated YAML and fix path in job by @AndreiCautisanu in https://github.com/comet-ml/opik/pull/6588
[OPIK-6311] [BE] perf: extend push-top-limit to filtered queries via slim DI ID CTE by @thiagohora in https://github.com/comet-ml/opik/pull/6567
[OPIK-6308] [BE] fix: make online evaluation score path non-blocking end-to-end by @andrescrz in https://github.com/comet-ml/opik/pull/6584
[NA] [SDK] [DOCS] Update automatically OpenAPI spec and Fern code by @CometActions in https://github.com/comet-ml/opik/pull/6586
[OPIK-6248] [FE] feat: trace details main content area – tabs, message container, LLM messages, feedback scores, error callout by @awkoy in https://github.com/comet-ml/opik/pull/6568
[NA] [BE][FE] chore: sync provider model definitions by @CometActions in https://github.com/comet-ml/opik/pull/6590

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.20...2.0.21

Open source →

2.0.2030 Apr 2026

[OPIK-6226] [FE] fix: agent configuration show more button issues by @andriidudar in https://github.com/comet-ml/opik/pull/6553

What's Changed

[OPIK-6226] [FE] fix: agent configuration show more button issues by @andriidudar in https://github.com/comet-ml/opik/pull/6553
[OPIK-6310] [BE] feat: auto-generate blueprint descriptions from config changes by @petrotiurin in https://github.com/comet-ml/opik/pull/6554
[OPIK-6055] [SDK] feat: route suite assertions to assertion-results endpoint by @JetoPistola in https://github.com/comet-ml/opik/pull/6531
[issue-6421] [FE] fix: truncate threads list and surface items load errors by @ollieagent[bot] in https://github.com/comet-ml/opik/pull/6425
[OPIK-6088] [INFRA] fix: pre-commit hook stages phantom deletions in worktrees by @JetoPistola in https://github.com/comet-ml/opik/pull/6387

Full Changelog: https://github.com/comet-ml/opik/compare/2.0.19...2.0.20

Open source →

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