statsig-rust

Breaking Changes

New Features

• Node.js:
• Java:
• Python:
• Rust:
• .NET:
• Elixir:

Improvements & Fixes

• Node.js:

• Java:

• Python:

• Rust:

• .NET:

• Elixir:

• Go: Add WithoutUserId() to StatsigUser builders to represent users with no userId value in go

• Cross Platform: fixed shutdown() to now flush pending events before completing

Included In This Release

• 34c9b3f statsig-kong[bot]
  • chore: bump version to 0.19.6-rc.2606161623
• 7e4a732 Xin Li (Bot)
  • [automated] sync rc with main
• e63b32d Sandeep Madugula
  • S2SDK-12: Flush inflight events before shutdown (#2977)
• ca2ac18 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.6-rc.2606151903 (#2984)
• 1b855ae Xin Li
  • fix scheduled rc release (#2958)
• bb08a93 statsig-kong[bot]
  • chore: bump version to 0.19.6-rc.2606151902
• 880a1e9 statsig-kong[bot]
  • [automated] sync rc with main (#2983)
• b0f271d Xin Li (Bot)
  • [automated] sync rc with main
• 5aa0c46 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.6-beta.2606100304 (#2980)
• 5cb6593 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.5-rc.1 (#2979)
• 94c6194 Kenneth Yeh
  • [Go-lang] add WithoutUserID to represent nil userID (#2976)
• 50ecd8e statsig-kong[bot]
  • [automated] chore: bump version to 0.19.5-beta.2606060303 (#2975)
• 8b274eb Kenneth Yeh
  • ci: fix rc bump minimum-release-age exclude to cover all node-core platform binaries (#2974)
• 8899938 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.5-rc.2606050349 (#2973)
• 519b6b6 statsig-kong[bot]
  • [automated] sync rc with main (#2972)

Full Changelog: 0.19.5...0.19.6

Breaking Changes

New Features

• Node.js:
• Java:
• Python:
• Rust:
• .NET:
• Elixir:

Improvements & Fixes

• Node.js:
• Java:
• Python:
• Rust:
• .NET:
• Elixir:
• Go: bound exposure dedupe set with LRU to prevent unbounded memory growth

Included In This Release

• e340b20 statsig-kong[bot]
  • chore: bump version to 0.19.5-rc.2606050348
• 73149f6 Xin Li (Bot)
  • [automated] sync rc with main
• 3784372 Kenneth Yeh
  • Revert "[release] 0.19.4-rc.2606032339" — restore RC version ordering (#2970)
• 35cb4d3 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.4-beta.2606050304 (#2971)
• d15ae18 Kenneth Yeh
  • ci: restore nightly beta cron schedule (#2956)
• cfc79fb Kenneth Yeh
  • [release] 0.19.4-rc.2606032339 - (#2968)
• f96a778 Kenneth Yeh
  • ci: fix rc bump workflow (alias syntax + bypass minimumReleaseAge + Node 24) (#2960)
• 30c99df Sandeep Madugula
  • S2SDK-1: [memory leak Fix] bound exposure dedupe set with LRU to prevent unbounded memory growth (#2966)
• 7cdedcd Kenneth Yeh
  • Revert "chore: configure workflow to support NPM Trusted Publishing" (#2967)
• 1214f9a statsig-kong[bot]
  • [automated] chore: bump version to 0.19.4-rc.1 (#2964)
• bfe96a6 Kenneth Yeh
  • fix: send User-Agent header in rust package verification crates.io request (#2962)
• 9144623 Daniel Graham
  • chore: configure workflow to support NPM Trusted Publishing (#2959)
• 12fcf11 Kenneth Yeh
  • ci: restore missing uses: refs in node_core_rc_bump workflow (#2957)
• 13a62a0 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.4-beta.2605212203 (#2955)
• 8315438 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.4-rc.2605212136 (#2954)
• d4db804 statsig-kong[bot]
  • [automated] sync rc with main (#2953)

Full Changelog: 0.19.4...0.19.5

Breaking Changes

• N/A

New Features

• Node.js: N/A
• Java: N/A
• Python: N/A
• Rust: N/A
• .NET: N/A
• Elixir: N/A

Improvements & Fixes

• Node.js: Inherits core layer-sampling fix and evaluator performance improvements.
• Java: Inherits core layer-sampling fix and evaluator performance improvements.
• Python:
  • Fix numeric coercion for large integer user.custom values that previously broke evaluation.
  • Faster typed DynamicConfig/Experiment accessors (get_string, get_integer, get_float, get_bool, get_array, get_object) — up to ~37% faster per call.
  • Inlined the error-boundary wrapper to remove per-call overhead — ~8–17% faster gate/config/experiment/layer evaluation.
• Rust:
  • Layers now pull the sampling rate from the experiment's rule in the config-delegate case.
  • Removed hash-input allocations in the evaluator hot path (~5–9% faster checks).
  • Skip SDK event-listener lookups when no listeners are subscribed.
• .NET: Inherits core layer-sampling fix and evaluator performance improvements.
• Elixir: Preserve user.custom integers above i64::MAX (fall back to f64) instead of raising in the NIF.

Included In This Release

• 8527686 statsig-kong[bot]
  • chore: bump version to 0.19.4-rc.2605212134
• 99e6fd0 Xin Li (Bot)
  • [automated] sync rc with main
• f1c32a6 Kenneth Yeh
  • fix(elixir): preserve user.custom integers above i64::MAX (#2951)
• cd82c4b Kenneth Yeh
  • Fix pyo3 numeric coercion (#2950)
• 8c863c2 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.3-rc.1 (#2948)
• d8a7643 Daniel
  • fix: allow floating point in proto specs (#2944)
• a29d7ab sroyal-statsig
  • Layer Sampling Update (#2943)
• 707d966 Daniel
  • Bc per user py (#2942)
• 47cac3e statsig-kong[bot]
  • [automated] chore: bump version to 0.19.3-beta.2604211739 (#2941)
• cb418de Daniel
  • Update nightly-beta.yml (#2940)
• 69914d9 Daniel
  • [codex] Remove evaluator hash input formatting allocations (#2933)
• 8a63304 Daniel
  • [codex] Skip SDK event listener lookups when unsubscribed (#2934)
• ad356ad Daniel
  • [codex] Fast path typed DynamicConfig accessors (#2936)
• f724e74 Daniel
  • [codex] Inline Python error boundary wrapper (#2935)
• 2edfe62 xinlili-oai
  • ci: disable cut release candidate and nightly beta workflows (#2939)
• bfff8e0 statsig-kong[bot]
  • [automated] chore: bump version to 0.19.3-beta.2604160313 (#2931)
• 1f5f5d4 xinlili-oai
  • Fix main flow (#2929)
• f2c3aba statsig-kong[bot]
  • [automated] chore: bump version to 0.19.2-rc.1 (#2928)
• 538391b statsig-kong[bot]
  • [automated] chore: bump version to 0.19.2-rc.2604152158 (#2926)
• 1b0a9bd statsig-kong[bot]
  • [automated] sync rc with main (#2925)

Full Changelog: 0.19.1...0.19.4