Go modules · #2575 by repository stars

github.com/kedacore/http-add-on

v0.16.0kedacore/http-add-on ↗New releases in your daily digest, changelog included.

Last release 10 days ago
28 Sep 2026
Release timing varies
gaps range from 9 days to 3 months
Most releases are documented
notes for 15 of 20 stable releases
Nothing withdrawn
no release was ever pulled
6 years old
68 releases · first in 2020

Release timeline

68 releases since 2020

2020202120222023202420252026

20202026

One column per quarter.

Releases

v0.16.1-0.20260928190726-7edda65659a928 Sept 2026pre-release
Nothing published for this version
v0.16.016 Sept 2026Deprecated
TLS policy environment variables using the KEDA_HTTP_PROXY_TLS_* prefix are deprecated in favor of the corresponding KEDA_HTTP_TLS_* variables. The ol…
Highlights

Static routes (#1622)

InterceptorRoute now supports staticRoutes for requests that should not trigger autoscaling, including health checks, redirects, and maintenance pages.

responseMode: WhenUnavailable forwards requests when the backend is ready and serves a static response otherwise.
responseMode: Always always serves the configured static response.

Direct-to-pod routing (#1473)

The interceptor can route requests directly to ready pod IPs instead of through the Service ClusterIP.
This can bypass kube-proxy and Service-layer behavior such as session affinity, topology-aware routing, and Service-level NetworkPolicy.

Bounded cold-start requests (#1732)

Cold-start pending requests can now be bounded per interceptor replica with coldStart.maxPendingRequests and coldStart.overflow.
Requests exceeding the limit receive 503 or the configured placeholder response.
The global KEDA_HTTP_COLD_START_MAX_PENDING_REQUESTS environment variable provides a default.

Cold-start observability (#1721, #1776)

The interceptor now exposes interceptor_cold_start_duration_seconds with ready, timeout, and cancelled outcomes.
Request duration metrics also include a cold_start label, with histogram buckets extended to 300s.

TLS and supply-chain improvements (#1728, #1715, #1604)

The release adds custom CA support for outbound backend TLS, automatic serving-certificate reloads, and SLSA Build Level 2 provenance attestations for release and canary images.

Deprecations

TLS policy environment variables using the KEDA_HTTP_PROXY_TLS_* prefix are deprecated in favor of the corresponding KEDA_HTTP_TLS_* variables.
The old names remain supported but emit deprecation warnings. (#1718)

What's Changed

test: add benchmark test suite for interceptor performance by @linkvt in #1675

chore(deps): update e2e dependencies by @renovate[bot] in #1681

ci: pin Helm version in benchmark workflow by @linkvt in #1691

test: remove unused deps from legacy e2e tests by @linkvt in #1685

feat: add static route support to interceptor by @linkvt in #1689

feat(interceptor): add direct-to-pod routing for upstreams by @AtharvaPakade in #1585

chore(deps): update github actions (major) by @renovate[bot] in #1694

fix(deps): update module github.com/cert-manager/cert-manager to v1.19.6 by @renovate[bot] in #1700

chore(deps): update github actions by @renovate[bot] in #1699

chore(deps): update fossas/fossa-action action to v2 by @renovate[bot] in #1702

fix(deps): update go dependencies (non-major) by @renovate[bot] in #1701

fix: allow timer jitter in TestForwarderConnectionRetryAndTimeout by @Fedosin in #1696

fix: don't log error when no interceptor endpoints are ready by @Fedosin in #1695

fix(deps): update module golang.org/x/sync to v0.22.0 by @renovate[bot] in #1707

chore(deps): update e2e dependencies by @renovate[bot] in #1698

chore(deps): update dependency helm/helm to v4.2.3 by @renovate[bot] in #1705

chore(deps): update github actions by @renovate[bot] in #1706

fix(deps): update k8s.io/utils digest to cf1189d by @renovate[bot] in #1693

fix: prevent requestRate rounding to zero after long idle by @linkvt in #1708

refactor: align scaler main.go with interceptor main.go pattern by @linkvt in #1709

fix(deps): update module google.golang.org/grpc to v1.82.1 by @renovate[bot] in #1712

chore(deps): update github/codeql-action action to v4.37.1 by @renovate[bot] in #1711

chore(deps): update ghcr.io/wolfi-dev/static:alpine docker digest to d054581 by @renovate[bot] in #1710

chore(deps): update actions/setup-go action to v7 by @renovate[bot] in #1714

fix(interceptor): clean up direct-pod routing TLS and defaults by @Fedosin in #1697

chore(deps): update module golang.org/x/text to v0.39.0 [security] by @renovate[bot] in #1717

fix(interceptor): accept TLS12/TLS13 version format by @linkvt in #1720

feat(interceptor): use certwatcher for TLS certificate hot-reload by @linkvt in #1716

refactor: separate TLS policy env vars from per-listener config by @linkvt in #1719

chore(deps): update github actions by @renovate[bot] in #1722

chore(deps): update helm release jaeger to v4.11.2 by @renovate[bot] in #1723

fix(deps): update go dependencies (non-major) by @renovate[bot] in #1724

fix(deps): update go dependencies (non-major) to v0.34.10 by @renovate[bot] in #1725

chore(deps): update module github.com/google/cel-go to v0.29.0 [security] by @renovate[bot] in #1727

fix(scaler): bound queue counts requests to interceptor pods by @Fedosin in #1729

feat: add custom CA trust for outbound backend TLS by @linkvt in #1731

chore(deps): update e2e dependencies by @renovate[bot] in #1735

chore(deps): update github actions by @renovate[bot] in #1736

chore(deps): update actions/stale action to v11 by @renovate[bot] in #1738

fix(deps): update module google.golang.org/grpc to v1.83.0 by @renovate[bot] in #1737

chore: auto-install dev tools via Makefile by @linkvt in #1739

feat(interceptor): bound the cold-start hold queue by @Fedosin in #1733

feat: add SLSA Build L2 provenance attestations for release images by @linkvt in #1743

ci: add artifact-metadata:write permission by @linkvt in #1744

chore(deps): update helm release opentelemetry-collector to v0.169.0 by @renovate[bot] in #1748

chore(deps): update ghcr.io/wolfi-dev/static:alpine docker digest to 2782077 by @renovate[bot] in #1745

fix(deps): update go dependencies (non-major) by @renovate[bot] in #1749

chore(deps): update github actions by @renovate[bot] in #1747

fix(deps): update google.golang.org/protobuf digest to 644d026 by @renovate[bot] in #1746

ci: use actions/attest directly instead of the wrapper by @linkvt in #1750

chore(deps): update module golang.org/x/mod to v0.40.0 [security] by @renovate[bot] in #1753

fix(deps): update go dependencies (non-major) by @renovate[bot] in #1758

chore(deps): update ghcr.io/wolfi-dev/static:alpine docker digest to c0c3216 by @renovate[bot] in #1754

chore(deps): update github/codeql-action action to v4.37.7 by @renovate[bot] in #1756

test: harden e2e test pods and helpers for restricted PSS by @linkvt in #1751

chore(deps): update dependency golangci/golangci-lint to v2.13.1 by @renovate[bot] in #1761

chore(deps): update dependency helm/helm to v4.2.4 by @renovate[bot] in #1755

fix(deps): update go dependencies (non-major) by @renovate[bot] in #1765

chore(deps): update infra dependencies by @renovate[bot] in #1757

chore(deps): update github/codeql-action action to v4.37.8 by @renovate[bot] in #1763

fix(deps): update go dependencies (non-major) to v0.34.11 by @renovate[bot] in #1764

chore(deps): update module github.com/google/cel-go to v0.30.0 [security] by @renovate[bot] in #1760

refactor: extract e2e-deps-external make target by @linkvt in #1766

chore: scan test dependencies with Renovate by @linkvt in #1767

chore(deps): update registry.k8s.io/e2e-test-images/agnhost docker tag to v2.61 by @renovate[bot] in #1775

chore(deps): update ghcr.io/traefik/whoami docker tag to v1.12.0 by @renovate[bot] in #1774

chore(deps): update ghcr.io/hatoo/oha docker tag to v1.16.0 by @renovate[bot] in #1773

chore(deps): update dependency kubernetes-sigs/kind to v0.33.0 by @renovate[bot] in #1772

chore(deps): update github/codeql-action action to v4.37.9 by @renovate[bot] in #1770

chore(deps): update alpine/socat docker tag to v1.8.1.3 by @renovate[bot] in #1768

chore: configure Renovate groups and monthly schedule by @linkvt in #1759

fix(ci): track kind version in the HTTPSO e2e job by @Fedosin in #1778

chore(deps): update infra dependencies by @renovate[bot] in #1771

fix(interceptor): report 499 instead of 502 for client-cancelled requests by @pujitha24 in #1780

fix(deps): update module google.golang.org/grpc to v1.83.2 [security] by @renovate[bot] in #1786

fix: avoid TLS e2e certificate mount collision by @linkvt in #1781

ci: track patch updates for older Kubernetes versions by @linkvt in #1782

chore: validate only unreleased changelog by default by @linkvt in #1787

fix: extend duration buckets and classify cold-start requests by @linkvt in #1783

feat: add cold-start duration metric by @linkvt in #1784

chore(deps): update helm/kind-action action to v1.15.0 by @renovate[bot] in #1790

chore(deps): update infra dependencies (patch) by @renovate[bot] in #1788

chore(deps): update infra dependencies by @renovate[bot] in #1791

fix(deps): update go dependencies (non-major) by @renovate[bot] in #1789

chore(deps): update infra dependencies by @renovate[bot] in #1795

chore(deps): update github actions by @renovate[bot] in #1796

ci: use slim runner for e2e summary by @linkvt in #1797

fix(scaler): suppress duplicate external-push activation events by @linkvt in #1793

chore: prepare release v0.16.0 by @linkvt in #1798

New Contributors

@pujitha24 made their first contribution in #1780

Full Changelog: v0.15.0...v0.16.0

Additional notes2 sources agree

New

General: Add SLSA Build Level 2 provenance attestations for release and canary container images via actions/attest. Attestations are pushed to GHCR alongside images and can be verified with gh attestation verify oci://ghcr.io/kedacore/http-add-on-operator:<version> --owner kedacore (#1604)
General: Add staticRoutes to InterceptorRoute for defining routes that should not trigger autoscaling, such as health checks, redirects, and maintenance pages. Supports responseMode: WhenUnavailable (forward to backend when ready, static response otherwise) and responseMode: Always (always serve static response) (#1622)
Interceptor: Add KEDA_HTTP_DIRECT_POD_ROUTING environment variable (true | false, default true). When enabled, the interceptor routes requests directly to a ready pod IP instead of through the Service ClusterIP, bypassing kube-proxy and other Service-layer features (Service-level NetworkPolicy, session affinity, topology-aware routing). (#1473)
Interceptor: Add KEDA_HTTP_TLS_CA_DIRS environment variable to trust custom CA bundles for outbound backend connections. (#1728)
Interceptor: Bound cold-start pending requests with new InterceptorRoute fields coldStart.maxPendingRequests and coldStart.overflow (Reject | Placeholder), plus a global KEDA_HTTP_COLD_START_MAX_PENDING_REQUESTS env var (default 0, unlimited). The limit applies per interceptor replica, so effective cluster-wide capacity scales with the replica count. Requests arriving when the limit is reached get 503 or the route's placeholder response, and are counted by the new interceptor.cold_start.rejections metric (#1732)

Improvements

Interceptor: Add interceptor_cold_start_duration_seconds histogram with ready, timeout, and cancelled outcomes to expose time spent waiting for scaled-from-zero backends to become ready (#1721)
Interceptor: Extend interceptor_request_duration_seconds buckets up to 300s (was 10s) and add a cold_start label to both interceptor_request_duration_seconds and interceptor_request_count_total, identifying requests that waited for backend readiness, including waits that ended before the backend became ready (#1776)
Interceptor: The forwarding transport sets TLS ServerName per-dial via DialTLSContext, using the original service hostname captured in context, so SNI stays correct when the upstream URL is rewritten to a pod IP. (#1473)
Interceptor: TLS server name is captured in context by the routing middleware before any URL rewrites, so downstream transports always use the original service hostname for SNI. The routing middleware also resolves the upstream named port into context to drive direct-pod target selection. (#1473)
Interceptor: Use certwatcher for the default serving certificate, enabling automatic reload on certificate rotation without restarts. (#1715)
Interceptor: ReadyEndpointsCache now tracks full (ip, port) pairs per named port from EndpointSlices, enabling direct-pod routing (replaces the previous bool-only ready state). (#1473)

Fixes

Interceptor: Accept TLS12/TLS13 TLS version format in addition to 1.2/1.3 for compatibility with KEDA and the operator (#1718)
Interceptor: Report 499 instead of 502 when the client cancels the request before the backend responds, so cancelled requests are no longer counted as backend failures (#1779)
Scaler: Bound each queue counts request to an interceptor pod by KEDA_HTTP_QUEUE_TICK_DURATION (minimum 250ms), so one unresponsive interceptor can no longer stall metric collection (#1730)
Scaler: Emit external-push activation events only on inactive-to-active transitions, preventing repeated active status updates from delaying scale-to-zero cooldown (#1792)
Scaler: Fix scale-from-zero failing with 504 after long idle when using requestRate with large window/granularity ratios (>2000) (#1692)

Deprecations

Interceptor: TLS policy env vars renamed from KEDA_HTTP_PROXY_TLS_* to KEDA_HTTP_TLS_* (MIN_VERSION, MAX_VERSION, CIPHER_SUITES, CURVE_PREFERENCES, SKIP_VERIFY). Old names still work but log a deprecation warning. (#1718)

Open source →

Additional notes

Latest

Compare

Open source →

v0.15.1-0.20260909125308-8002fbb932469 Sept 2026pre-release

Nothing published for this version

v0.15.1-0.20260901171507-ccc776ad06321 Sept 2026pre-release

Nothing published for this version

v0.15.1-0.20260810230530-fb57304d20e910 Aug 2026pre-release

Nothing published for this version

v0.15.015 Jun 2026Deprecated

Old names still work but log a deprecation warning.

Highlights

HTTP/2 and gRPC support (#1084)

The interceptor now supports HTTP/2 (h2c and h2 over TLS), enabling autoscaling of gRPC workloads. Backend transport is selected based on the Kubernetes appProtocol field on the Service port (#1676): cleartext backends default to HTTP/1.1 unless appProtocol: kubernetes.io/h2c is set; TLS backends negotiate via ALPN.

The KEDA_HTTP_FORCE_HTTP2 environment variable has been removed — HTTP/2 is now negotiated automatically.

Cold-start placeholder responses (#874)

New coldStart.placeholder support lets you return static HTTP responses while a workload scales from zero, instead of holding the request until a pod is ready.

Scaler resilience (#1667)

The scaler now tolerates partial interceptor pod failures instead of restarting on a single unreachable endpoint. Last-known concurrency is cached for unreachable pods to prevent underreporting.

Graceful shutdown (#1636)

The interceptor now drains in-flight requests before exiting. It waits for active handlers to complete (bounded by KEDA_HTTP_DRAIN_TIMEOUT), marks the readiness probe unhealthy immediately on SIGTERM, and delays listener closure by KEDA_HTTP_SHUTDOWN_DELAY to let Kubernetes propagate endpoint removal.

Deprecations

KEDAHTTP_OPERATOR_EXTERNAL_SCALER_SERVICE and KEDAHTTP_OPERATOR_EXTERNAL_SCALER_PORT have been renamed to KEDA_HTTP_OPERATOR_EXTERNAL_SCALER_SERVICE and KEDA_HTTP_OPERATOR_EXTERNAL_SCALER_PORT. Old names still work but log a deprecation warning. (#1623)

What's Changed

fix(deps): update module github.com/cert-manager/cert-manager to v1.19.5 by @renovate[bot] in #1612
fix: disable digest pinning for kindest/node in renovate by @linkvt in #1614
chore: group e2e-framework with Kubernetes deps in renovate by @linkvt in #1613
chore(deps): update e2e dependencies by @renovate[bot] in #1615
chore(deps): update dependency golangci/golangci-lint to v2.12.1 by @renovate[bot] in #1616
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1611
chore: remove unused .dockerignore file by @linkvt in #1621
ci: add stable e2e summary job for branch protection by @linkvt in #1618
chore: improve OpenSSF Scorecard security posture by @linkvt in #1620
fix(ci): add retry logic to e2e Helm dependency installs by @Fedosin in #1584
fix: rename KEDAHTTP_OPERATOR_EXTERNAL_SCALER_* env vars to KEDA_HTTP_OPERATOR_EXTERNAL_SCALER_* by @Fedosin in #1623
fix: use downward API for namespace env vars instead of hardcoded value by @Fedosin in #1625
chore: add OpenSSF and community badges to README by @linkvt in #1624
chore(deps): update github actions by @renovate[bot] in #1630
chore(deps): update dependency golangci/golangci-lint to v2.12.2 by @renovate[bot] in #1629
chore(deps): update ghcr.io/wolfi-dev/static:alpine docker digest to de720d5 by @renovate[bot] in #1627
fix(deps): update k8s.io/utils digest to ff6756f by @renovate[bot] in #1628
chore: flatten nested checklist in PR template by @linkvt in #1632
chore: exclude gnu.org/make from lychee link checks by @linkvt in #1631
feat: add native Go fuzz tests for untrusted-input surfaces by @Fedosin in #1599
chore(deps): update actions/upload-artifact action to v7 by @renovate[bot] in #1642
chore(deps): update github/codeql-action action to v4.35.5 by @renovate[bot] in #1638
chore(deps): update e2e dependencies by @renovate[bot] in #1640
fix(deps): update go dependencies (non-major) to v0.34.8 by @renovate[bot] in #1639
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1641
docs: reference new e2e test suite in contributor docs by @linkvt in #1635
chore: remove old HTTPSO examples by @linkvt in #1643
Replace gorilla/websocket with coder/websocket by @Akram-saj in #1633
fix(deps): update module github.com/coder/websocket to v1.8.14 by @renovate[bot] in #1650
perf: strip managed fields from controller-runtime cache by @linkvt in #1651
chore(deps): update module golang.org/x/net to v0.55.0 [security] by @renovate[bot] in #1652
chore(deps): update github actions by @renovate[bot] in #1653
chore(deps): update helm release opentelemetry-collector to v0.156.2 - autoclosed by @renovate[bot] in #1654
ci: add workflow to block PRs with 'on hold' label by @linkvt in #1647
feat: add coldStart.placeholder support for static responses by @linkvt in #1626
feat(scaler): add observability (metrics + tracing) to the external scaler by @Fedosin in #1634
chore(deps): update helm release opentelemetry-collector to v0.158.0 by @renovate[bot] in #1660
fix: filter GetMetrics response by requested metric name by @linkvt in #1664
feat: add s390x to release platforms by @linkvt in #1663
chore: clean up README and remove outdated files by @linkvt in #1666
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1661
fix(interceptor): close request body to prevent panic by @linkvt in #1669
fix(deps): update go dependencies (non-major) to v1.44.0 by @renovate[bot] in #1673
chore(deps): update github actions by @renovate[bot] in #1671
chore(deps): update e2e dependencies by @renovate[bot] in #1672
fix: drain in-flight requests on shutdown by @linkvt in #1648
feat: add gRPC and HTTP/2 support to interceptor by @linkvt in #1658
chore: use pinned version comments for GitHub Actions by @linkvt in #1674
fix: tolerate partial interceptor pod failures in scaler by @Fedosin in #1670
feat: select backend transport via service appProtocol by @linkvt in #1678
chore: pin helm version and add timeouts to e2e helm installs by @linkvt in #1686
fix(deps): update go dependencies (non-major) to v0.34.9 by @renovate[bot] in #1682
chore(deps): update ghcr.io/wolfi-dev/static:alpine docker digest to 6a4616e by @renovate[bot] in #1680
chore(deps): update pre-commit hooks to v2.5.0 by @renovate[bot] in #1683
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1684
chore: prepare release v0.15.0 by @linkvt in #1687

New Contributors

@Akram-saj made their first contribution in #1633

Full Changelog: v0.14.0...v0.15.0

Open source →

Additional notes2 sources agree

New

General: Add s390x to supported release platforms (#1662)
General: Add coldStart.placeholder support for returning static HTTP responses during scale-from-zero (#874)
Interceptor: Add HTTP/2 support (h2c and h2 over TLS), enabling autoscaling of gRPC workloads (#1084)
Interceptor: Select backend transport based on Kubernetes appProtocol instead of mirroring the client's protocol. Cleartext backends default to HTTP/1.1 unless the Service port sets appProtocol: kubernetes.io/h2c; TLS backends negotiate via ALPN (#1676)
Scaler: Add OpenTelemetry metrics and distributed tracing to the external scaler (#965)

Improvements

General: Strip managed fields from controller-runtime cache to reduce memory consumption (#1651)

Fixes

Interceptor: Fix graceful shutdown so in-flight requests are drained before the process exits. The interceptor now waits for active handlers to complete (bounded by KEDA_HTTP_DRAIN_TIMEOUT), marks the readiness probe unhealthy immediately on SIGTERM, and delays listener closure by KEDA_HTTP_SHUTDOWN_DELAY to let Kubernetes propagate endpoint removal. (#1636)
Interceptor: Fix panic with "invalid concurrent Body.Read call" when reverse proxy fails without consuming the request body (#1668)
Scaler: Fix incorrect HPA values when both concurrency and requestRate metrics are configured (#1659)
Scaler: Tolerate partial interceptor pod failures instead of restarting the scaler on a single unreachable endpoint; cache last-known concurrency for unreachable pods to prevent underreporting (#1667)

Deprecations

Interceptor: Remove KEDA_HTTP_FORCE_HTTP2 environment variable. This is not a breaking change — HTTP/2 is now negotiated automatically. (#1084)
Operator: Rename KEDAHTTP_OPERATOR_EXTERNAL_SCALER_SERVICE and KEDAHTTP_OPERATOR_EXTERNAL_SCALER_PORT environment variables to KEDA_HTTP_OPERATOR_EXTERNAL_SCALER_SERVICE and KEDA_HTTP_OPERATOR_EXTERNAL_SCALER_PORT. Old names are still accepted but log a deprecation warning and will be removed in a future release. (#1623)

v0.14.024 Apr 2026Deprecated

HTTPScaledObject remains supported but is now deprecated — a warning is logged per resource to guide migration.

Breaking Changes

Interceptor timeout defaults changed (#1474)

Default timeout behavior has been redesigned. KEDA_HTTP_REQUEST_TIMEOUT now defaults to 0 (disabled), KEDA_HTTP_RESPONSE_HEADER_TIMEOUT defaults to 300s (was 500ms), and KEDA_HTTP_READINESS_TIMEOUT defaults to 0 (disabled, was 20s). Timeout errors now return 504 instead of 502.

The following environment variables have been removed: KEDA_HTTP_TLS_HANDSHAKE_TIMEOUT, KEDA_HTTP_EXPECT_CONTINUE_TIMEOUT, KEDA_HTTP_KEEP_ALIVE, KEDA_HTTP_IDLE_CONN_TIMEOUT, KEDA_HTTP_DIAL_RETRY_TIMEOUT. These now use Go's DefaultTransport defaults.

Interceptor metrics redesigned (#1563, #1590)

Metrics now use bounded labels: path/host replaced by route_name/route_namespace, and non-standard HTTP methods are normalized to _OTHER. Metrics have also been renamed to follow OTel semantic conventions: interceptor_requests_total → interceptor_request_count_total, interceptor_pending_requests → interceptor_request_concurrency. Dashboards must be updated.

Highlights

New documentation (#1516)

The documentation has been completely rewritten and now lives at keda.sh/http-add-on. It features versioned docs, improved navigation, a quick start and guides for different personas (developers, cluster operators). The legacy in-repo docs have been removed.

InterceptorRoute CRD (#1532)

A new InterceptorRoute CRD separates routing/interceptor configuration from scaling configuration. HTTPScaledObject remains supported but is now deprecated — a warning is logged per resource to guide migration.

See the user guide and the migration guide for details.

Per-route timeout configuration (#1562)

InterceptorRoute supports per-route timeouts via the timeouts spec with request, responseHeader, and readiness fields. When unset, global env var defaults are used.

Migration helper: orphan-scaledobject annotation (#1593)

The new httpscaledobject.keda.sh/orphan-scaledobject annotation lets you preserve the auto-created ScaledObject when deleting an HTTPScaledObject during migration to InterceptorRoute, avoiding scaling gaps.

What's Changed

refactor: simplify responseWriter using Unwrap pattern by @linkvt in #1555
feat: implement InterceptorRoute CRD by @linkvt in #1532
refactor: extract endpoint resolution into dedicated middleware by @linkvt in #1558
chore(deps): update azure/setup-helm action to v5 by @renovate[bot] in #1561
chore(deps): update github actions by @renovate[bot] in #1560
refactor: move RPS calculation from interceptor to scaler by @Fedosin in #1557
refactor: add new e2e test suite by @linkvt in #1545
fix: reduce OTEL_METRIC_EXPORT_INTERVAL from 1ms to 5s by @linkvt in #1564
fix(deps): update go dependencies (non-major) (patch) by @renovate[bot] in #1566
chore(deps): update e2e dependencies by @renovate[bot] in #1565
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1568
chore(deps): update github actions by @renovate[bot] in #1567
refactor: extract test cert generation into a shared helper by @linkvt in #1569
fix: resolve semgrep findings by @linkvt in #1570
feat: redesign interceptor metrics with bounded labels by @linkvt in #1563
chore(deps): update helm release opentelemetry-collector to v0.150.0 by @renovate[bot] in #1574
fix(deps): update module go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp to v0.68.0 by @renovate[bot] in #1576
chore: switch whoami test image to ghcr.io by @linkvt in #1572
feat: implement per-route timeout configuration by @linkvt in #1562
chore(deps): update pre-commit hook thlorenz/doctoc to v2.4.1 by @renovate[bot] in #1575
chore(deps): bump github.com/moby/spdystream from 0.5.0 to 0.5.1 by @dependabot[bot] in #1579
chore: automate kind version updates via Renovate by @linkvt in #1573
refactor: set Content-Type in interceptor queue endpoint handler by @linkvt in #1580
ci: reduce lychee link checker flakiness by @linkvt in #1582
feat: support OTEL_TRACES_SAMPLER and OTEL_TRACES_SAMPLER_ARG settings by @Fedosin in #1577
chore(deps): update github actions by @renovate[bot] in #1586
fix(deps): update go dependencies (non-major) to v0.34.7 (patch) by @renovate[bot] in #1587
refactor/feat(e2e): improve test reliability and add new InterceptorRoute e2e tests by @Fedosin in #1583
fix: restrict metrics endpoint to /metrics path by @linkvt in #1591
refactor: align metric names with OTel semantic conventions by @linkvt in #1590
refactor: nest cold-start fallback service fields under service key by @linkvt in #1588
feat: log deprecation warning for HTTPScaledObject by @linkvt in #1595
feat: require explicit targetValue in scaling metric specs by @linkvt in #1597
refactor: simplify queue count types and fix RPS naming by @linkvt in #1581
feat: add orphan-scaledobject annotation for HTTPSO->IR migration by @linkvt in #1593
chore: remove kubebuilder scaffolding artifacts by @linkvt in #1598
chore: remove legacy in-repo docs in favor of keda.sh by @linkvt in #1594
chore: pin ko base image to digest and track with Renovate by @linkvt in #1605
chore: prepare release v0.14.0 by @linkvt in #1607

Full Changelog: v0.13.0...v0.14.0

Open source →

Additional notes2 sources agree

Breaking Changes

Interceptor: Change default timeout behavior: request timeout (KEDA_HTTP_REQUEST_TIMEOUT) defaults to 0 (disabled), response header timeout (KEDA_RESPONSE_HEADER_TIMEOUT → KEDA_HTTP_RESPONSE_HEADER_TIMEOUT) defaults to 300s (was 500ms), and readiness timeout (KEDA_CONDITION_WAIT_TIMEOUT → KEDA_HTTP_READINESS_TIMEOUT) defaults to 0 (disabled, was 20s). Timeout errors return 504 instead of 502. (#1474)
Interceptor: Redesign interceptor metrics with bounded labels: path/host labels replaced by route_name/route_namespace; non-standard HTTP methods normalized to _OTHER; dashboards must be updated (#1559)
Interceptor: Remove KEDA_HTTP_TLS_HANDSHAKE_TIMEOUT, KEDA_HTTP_EXPECT_CONTINUE_TIMEOUT, KEDA_HTTP_KEEP_ALIVE, KEDA_HTTP_IDLE_CONN_TIMEOUT, and KEDA_HTTP_DIAL_RETRY_TIMEOUT environment variables; these now use Go's DefaultTransport defaults. (#1474)
Interceptor: Rename interceptor metrics to follow OTel semantic conventions: interceptor_requests_total → interceptor_request_count_total, interceptor_pending_requests → interceptor_request_concurrency, interceptor_request_duration_seconds unchanged (#1589)

New

General: Add InterceptorRoute CRD to separate routing/interceptor config from scaling config; HTTPScaledObject remains supported but will be deprecated in a future release (#1501)
Interceptor: Add per-route timeout configuration via InterceptorRoute timeouts spec with request, responseHeader, and readiness fields. When unset, global env var defaults are used. When a fallback service is configured and no readiness timeout is set, it defaults to 30s. (#1474)
Operator: Add httpscaledobject.keda.sh/orphan-scaledobject annotation to preserve ScaledObjects during HTTPScaledObject-to-InterceptorRoute migration (#1593)

Improvements

Interceptor: Support OTEL_TRACES_SAMPLER and OTEL_TRACES_SAMPLER_ARG for trace sampling configuration (#1534)
Scaler: Move request-rate calculation from interceptor to scaler for a consistent view of request rate across all interceptor replicas (#1557)

Fixes

Interceptor: Restrict metrics endpoint to /metrics path only, matching the Prometheus scrape convention (#1591)

Deprecations

Interceptor: Deprecate KEDA_CONDITION_WAIT_TIMEOUT and KEDA_RESPONSE_HEADER_TIMEOUT environment variables in favor of KEDA_HTTP_READINESS_TIMEOUT and KEDA_HTTP_RESPONSE_HEADER_TIMEOUT. Old vars take precedence when set and log deprecation warnings. (#1474)
Operator: Log deprecation warning for HTTPScaledObject resources, guiding users to migrate to InterceptorRoute (#1595)

Other

General: Remove legacy in-repo documentation in favor of keda.sh/http-add-on (#1516)

v0.13.1-0.20260414104838-bf3f2d9aaf7614 Apr 2026pre-release

Nothing published for this version

v0.13.023 Mar 2026Deprecated

fix: replace deprecated release asset upload actions by @linkvt in #1490

What's Changed

chore: replace Dependabot with Renovate by @linkvt in #1476
chore: exclude existing revive var-naming lint issues by @linkvt in #1475
chore: remove unused CurrentNamespace from interceptor config by @Fedosin in #1484
fix: update roundToNDigits to use Round instead of Floor by @Fedosin in #1483
chore(deps): update actions/checkout action to v6 by @renovate[bot] in #1486
fix(deps): update module go.opentelemetry.io/otel/sdk to v1.40.0 [security] by @renovate[bot] in #1481
fix: replace deprecated release asset upload actions by @linkvt in #1490
refactor: replace kelseyhightower/envconfig with caarlos0/env by @linkvt in #1491
chore: move renovate config to .github dir by @linkvt in #1480
refactor: migrate build system from Docker to ko by @linkvt in #1465
refactor: modernize code with go fix by @linkvt in #1494
refactor: remove dead code identified by deadcode analysis by @linkvt in #1493
chore: remove archived pre-commit-golang hook by @linkvt in #1495
perf: add atomic endpoint readiness cache for O(1) hot-path checks by @Fedosin in #1472
chore: replace hack/tools.go with go.mod tool directive by @linkvt in #1498
ci: use stable Go version in CI workflows by @linkvt in #1499
ci: replace keda-tools container with setup-go in CodeQL workflow by @linkvt in #1502
chore: enable Renovate kubernetes manager for config/ and examples/ by @linkvt in #1503
chore(config): migrate Renovate config by @renovate[bot] in #1504
chore(deps): pin dependencies by @renovate[bot] in #1505
chore(deps): pin golang docker tag to 8bbd140 by @renovate[bot] in #1506
chore(deps): update pre-commit hook thlorenz/doctoc to v2.3.0 by @renovate[bot] in #1510
fix(deps): update k8s.io/utils digest to b8788ab by @renovate[bot] in #1508
chore(deps): update golang docker tag to v1.26.0 by @renovate[bot] in #1509
chore: improve Renovate dependency grouping by @linkvt in #1507
chore: remove unused .whitesource configuration by @linkvt in #1513
fix: reorder Renovate packageRules so specific groups override catch-all by @linkvt in #1514
chore: extend k8s renovate group with more related pkgs by @linkvt in #1515
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1511
fix: fix flaky and skipped tracing e2e tests by @linkvt in #1517
chore: configure renovate post-update options for Go modules by @linkvt in #1518
refactor: modernize golangci-lint config and fix issues by @linkvt in #1497
perf: replace global queue lock with per-host atomics and eliminate counting goroutines by @Fedosin in #1482
fix: resolve golangci-lint v2.11.1 gosec and nolintlint issues by @Fedosin in #1522
chore(deps): update github actions by @renovate[bot] in #1524
chore(deps): update golang docker tag to v1.26.1 by @renovate[bot] in #1525
chore(deps): update docker/login-action action to v4 by @renovate[bot] in #1529
fix(deps): update go dependencies (non-major) by @renovate[bot] in #1526
fix: remove configurable EndpointSlice informer resync interval by @Fedosin in #1485
fix: drop semconv version-pinned import in favor of schemaless resources by @linkvt in #1531
refactor(scaler): use WaitGroup.Go for queue pinger goroutines by @Fedosin in #1535
docs: replace deprecated targetPendingRequests with scalingMetric in design.md by @Paul-Weaver in #1536
chore: track golangci-lint version with renovate by @linkvt in #1537
chore: group regex-managed action versions with GitHub Actions updates by @linkvt in #1539
chore: provide minimal devcontainer config by @linkvt in #1538
chore(config): migrate Renovate config by @renovate[bot] in #1540
chore(deps): update github actions by @renovate[bot] in #1542
refactor: replace homebrew endpoints cache with controller-runtime cache by @Fedosin in #1533
tracing: Remove B3 trace propagation by @AtharvaPakade in #1543
feat: add env-based TLS version, cipher suite, and curve configuration by @Fedosin in #1530
fix(deps): update module google.golang.org/grpc to v1.79.3 [security] by @renovate[bot] in #1546
chore(deps): update github actions by @renovate[bot] in #1553
fix(deps): update k8s.io/utils digest to 28399d8 by @renovate[bot] in #1554
chore: improve issue templates and add needs-triage label by @linkvt in #1552
chore: prepare release v0.13.0 by @Fedosin in #1556

New Contributors

@renovate[bot] made their first contribution in #1486
@Paul-Weaver made their first contribution in #1536
@AtharvaPakade made their first contribution in #1543

Full Changelog: v0.12.2...v0.13.0

Open source →

Additional notes2 sources agree

Breaking Changes

Interceptor: Remove B3 (Zipkin) trace propagation, only W3C TraceContext and W3C Baggage are now supported (#1519)

Improvements

Docs: Update design doc to use scalingMetric/targetValue instead of deprecated targetPendingRequests (#1536)
Interceptor: Add env-based TLS configuration for min/max version, cipher suites, and curve preferences (#1530)
Interceptor: Reduce interceptor latency and memory usage under high concurrency (#1482)
Interceptor: Speed up endpoint readiness checks with a fast lookup cache (#1472)

Fixes

General: Fix roundToNDigits using math.Round instead of math.Floor to correctly round small negative floating-point errors to zero (#1483)
Interceptor: Remove configurable KEDA_HTTP_ENDPOINTS_CACHE_POLLING_INTERVAL_MS and hardcode EndpointSlice informer resync to 60m (#1485)
Scaler: Remove unused KEDA_HTTP_SCALER_DEPLOYMENT_INFORMER_RSYNC_PERIOD env var (#1533)

Other

Interceptor: Remove unused CurrentNamespace field and KEDA_HTTP_CURRENT_NAMESPACE env var from interceptor config (#1484)

Open source →

v0.12.219 Feb 20263 sources agree

Interceptor health probe endpoints moved to the admin port ( 9090 ). No action needed if using the Helm chart. If you use custom external health check

Upgrade Notes

Interceptor health probe endpoints moved to the admin port (9090). No action needed if using the Helm chart. If you use custom external health checks (e.g., GCP HealthCheckPolicy), update them to target port 9090 for /readyz and /livez.

Improvements

Interceptor: Increase default connection pool sizes for higher throughput (#1469)

Fixes

Interceptor: Fix health probes failing when HTTPScaledObject has no hosts configured (#1447)
Interceptor: Rework dial retry to tolerate slow Service IP propagation and add KEDA_HTTP_DIAL_RETRY_TIMEOUT (#1449)
Interceptor: Set endpoint informer resync default to 1s to suppress warning (#1455)

Full Changelog: v0.12.1...v0.12.2

Open source →

v0.12.2-0.20260203135502-a832da311c6d3 Feb 2026pre-release

Nothing published for this version

v0.12.13 Feb 2026

chore: cleanup old docs and examples by @linkvt in #1430

What's Changed

chore: cleanup old docs and examples by @linkvt in #1430
fix(interceptor): preserve upstream X-Forwarded headers by @linkvt in #1434
chore(deps): bump docker/login-action from 3.6.0 to 3.7.0 in the all-updates group by @dependabot[bot] in #1438
Add CodeQL by @JorTurFer in #1437
chore: prepare release v0.12.1 by @linkvt in #1441

Full Changelog: v0.12.0...v0.12.1

Open source →

Additional notes2 sources agree

Fixes

Interceptor: Preserve X-Forwarded-Proto and X-Forwarded-Host headers from upstream proxies (#1432)

Open source →

v0.12.028 Jan 2026Deprecated

chore: fix devcontainer build by updating deprecated Go tools by @linkvt in #1384

Breaking Changes

HTTPScaledObject CRD must be updated (#1419)

You must update the HTTPScaledObject CRD before upgrading the operator. The .status.conditions field now uses the standard Kubernetes metav1.Condition format.

If you have tooling that parses HTTPScaledObject conditions, update it to expect standard fields (lastTransitionTime, observedGeneration).

This fixes duplicate Ready conditions that caused issues with GitOps tools like ArgoCD and Flux.

Highlights

Wildcard host matching (#1411)

Use wildcard patterns like *.example.com to match any subdomain with a single HTTPScaledObject.

spec:
  hosts:
    - "*.example.com"  # matches foo.example.com, bar.foo.example.com, etc.

HTTP header-based routing (#1289)

Route requests to different backends based on HTTP headers. Multiple HTTPScaledObjects can now match the same host and path with different header requirements.

apiVersion: http.keda.sh/v1alpha1
kind: HTTPScaledObject
spec:
  hosts:
    - api.example.com
  headers:
    - name: X-API-Version
      value: v2
  scaleTargetRef:
    name: api-v2

Performance improvements (#1404)

The interceptor now uses significantly less memory under load, with reduced memory growth over time. Latency is also improved for high-throughput workloads.

Full-duplex HTTP/1.1 support (#1386)

Bidirectional streaming now works correctly - response bodies can start streaming while request bodies are still being sent.

Configurable request logging (#1375)

Request logging in the interceptor is now optional. Disable it to reduce log volume in high-traffic environments.

What's Changed

Update ADOPTERS.md for IMVARIA inc. by @dcb-imvaria in #1366
interceptor: make request logging optional by @wozniakjan in #1375
feat: add environment variables for leader election timing configuration by @nader-ziada in #1365
fix broken link to propulsion ai by @wozniakjan in #1381
chore: fix devcontainer build by updating deprecated Go tools by @linkvt in #1384
ci: use GitHub-hosted ARM64 runners for e2e tests by @linkvt in #1389
chore(deps): bump the all-updates group across 1 directory with 5 updates by @dependabot[bot] in #1377
chore(deps): bump github.com/expr-lang/expr from 1.17.6 to 1.17.7 by @dependabot[bot] in #1401
Improve interceptor performance and allocations by @linkvt in #1404
ci: replace stale bot with official GitHub Actions stale action by @linkvt in #1398
fix: spaces are allowed in project basepath (#1392) by @khauser in #1393
fix: decouple connection retry backoff from TCP dial timeout by @linkvt in #1387
fix: consolidate HTTPScaledObject status updates to prevent conflicts by @Fedosin in #1408
fix: prevent duplicate conditions by matching on Type instead of Reason by @linkvt in #1395
chore(deps): update OpenTelemetry semconv version to v1.37.0 by @jochbru in #1407
ci: update e2e test k8s and kind versions by @linkvt in #1413
feat: add wildcard host matching for HTTPScaledObject by @linkvt in #1411
feat: expose and secure controller-runtime metrics by @khauser in #1369
chore: Fix codeowner and add the notification flow by @JorTurFer in #1416
refactor: simplify TableMemory and remove dead code by @linkvt in #1412
Support full-duplex http1.1 by @jackkleeman in #1386
chore(deps): bump the all-updates group across 1 directory with 3 updates by @dependabot[bot] in #1414
Bump golang to 1.25.5 + small fixes by @JorTurFer in #1418
chore(deps): bump github.com/kedacore/keda/v2 from 2.18.0 to 2.18.3 by @dependabot[bot] in #1406
interceptor: support for HTTP header routing by @wozniakjan in #1289
refactor(operator)!: migrate to standard metav1.Condition by @linkvt in #1419
e2e test: header routing by @wozniakjan in #1420
feat: Add FOSSA to monitor licenses by @JorTurFer in #1422
chore: update dependencies and remove version pinning by @linkvt in #1424
chore(deps): bump actions/checkout from 6.0.1 to 6.0.2 in the all-updates group by @dependabot[bot] in #1426
chore: prepare for release 0.12.0 by @linkvt in #1429

New Contributors

@dcb-imvaria made their first contribution in #1366
@nader-ziada made their first contribution in #1365
@linkvt made their first contribution in #1384
@khauser made their first contribution in #1393
@Fedosin made their first contribution in #1408
@jochbru made their first contribution in #1407
@jackkleeman made their first contribution in #1386

Full Changelog: v0.11.1...v0.12.0

Open source →

Additional notes2 sources agree

Breaking Changes

Operator: Migrate HTTPScaledObject status conditions to standard metav1.Condition type (#1409)

New

General: Add environment variables for leader election timing configuration (#1365)
General: Add multi-level wildcard host matching for HTTPScaledObject routing (#281)

Improvements

General: Make interceptor request logging optional (#1375)
Interceptor: Add support for full-duplex HTTP1.1 (#1386)
Interceptor: Route requests by HTTP header matching (#1177)
Interceptor: Significant performance improvements (#1403)

Fixes

Interceptor: Decouple connection retry backoff from TCP dial timeout for faster cold starts (#1385)
Operator: Fix conflict errors when updating HTTPScaledObject status (#1402)
Operator: Prevent duplicate Ready conditions in HTTPScaledObject status by matching on Type instead of Reason (#1390)

Deprecations

None

Other

General: Fix Makefile to support spaces in project base path (#1392)
General: Get rid of kube-rbac-proxy (#1369)
General: Update OpenTelemetry semconv version to v1.37.0 (#1407)
CI: Replace stale bot with official GitHub Actions stale action (#1398)
CI: Use GitHub-hosted ARM64 runners for e2e tests (#1388)
DevContainer: Fix devcontainer build by updating deprecated Go tools (#1347)

v0.11.120 Oct 2025

Update Kubernetes compatibility documentation to include v1.33, v1.34, and v0.11.0 release by @Copilot in #1349

What's Changed

Update Kubernetes compatibility documentation to include v1.33, v1.34, and v0.11.0 release by @Copilot in #1349
fix: check endpoint readiness before forwarding by @wozniakjan in #1348
chore: update k8s versions by @zroubalik in #1351
chore(deps): bump the all-updates group across 1 directory with 5 updates by @dependabot[bot] in #1343
ci: bump go to 1.24.7 and fix link checker by @wozniakjan in #1357
feat: add environment variable to control X-KEDA-HTTP-Cold-Start response header by @sean-redmond in #1354
e2e: deploy zipkin as part of testsuite setup by @wozniakjan in #1358
chore: bump deps to k8s 0.33.4 & KEDA core 2.18.0 by @zroubalik in #1353
release v0.11.1 prep by @wozniakjan in #1360

New Contributors

@Copilot made their first contribution in #1349
@sean-redmond made their first contribution in #1354

Full Changelog: v0.11.0...v0.11.1

Open source →

Additional notes2 sources agree

Improvements

General: Updated k8s versions (#1351)
General: Updated KEDA versions (#1353)

Open source →

v0.11.018 Sept 2025

chore(deps): bump the all-updates group with 4 updates by @dependabot [bot] in #1263

What's Changed

chore(deps): bump the all-updates group with 4 updates by @dependabot[bot] in #1263
Update ADOPTERS.md by @rd-zahari-aleksiev in #1265
chore(deps): bump the all-updates group across 1 directory with 11 updates by @JorTurFer in #1268
chore(deps): bump golang.org/x/net from 0.35.0 to 0.36.0 by @dependabot[bot] in #1269
chore(deps): bump github.com/expr-lang/expr from 1.16.9 to 1.17.0 by @dependabot[bot] in #1272
chore(deps): bump the all-updates group with 2 updates by @dependabot[bot] in #1271
chore(deps): bump github.com/prometheus/common from 0.62.0 to 0.63.0 in the all-updates group by @dependabot[bot] in #1270
Change path in walkthrough call to match httpscaledobject from example by @GilbertBckr in #1266
chore(deps): bump the all-updates group with 3 updates by @dependabot[bot] in #1275
e2e tests: use ghcr registry for otel images by @wozniakjan in #1284
feat: Add support for tracing for http addon by @bhussain91 in #1021
chore: reformat scaler code to match KEDA go style by @zroubalik in #1295
chore: get the correct HTTPScaledObject reference in the scaler by @zroubalik in #1296
e2e: fix nginx installation via helm by @zroubalik in #1300
scaler: allow using HSO and SO with different names by @zroubalik in #1299
Add a way to turn off the profiling for all three http add-on components by @jkremser in #1308
feat(interceptor): Add possibility to skip tls verification for upstreams by @ilia-medvedev-codefresh in #1307
Implement HTTPScaledObject scoped timeout by @AlexPykavy in #1285
chore: Bump go version and deps by @JorTurFer in #1305
feat: failover route on cold-start time out by @yyewolf in #1280
feat(middleware-logging): implement http.Hijacker by @guilhem in #835
chore(deps): bump the all-updates group across 1 directory with 6 updates by @dependabot[bot] in #1325
migrate from v1.Endpoints to discoveryv1.EndpointSlices by @jkremser in #1298
ci: fix semver release trigger by @wozniakjan in #1336

New Contributors

@rd-zahari-aleksiev made their first contribution in #1265
@GilbertBckr made their first contribution in #1266
@bhussain91 made their first contribution in #1021
@jkremser made their first contribution in #1308
@ilia-medvedev-codefresh made their first contribution in #1307
@AlexPykavy made their first contribution in #1285
@yyewolf made their first contribution in #1280
@guilhem made their first contribution in #835

Full Changelog: v0.10.0...v0.11.0

Open source →

Additional notes2 sources agree

Breaking Changes

General: Migrate from deprecated v1.Endpoints to discoveryv1.EndpointSlices (#1297)

New

General: Add configurable tracing support to the interceptor proxy (#1021)
General: Add failover service on cold-start (#1280)
General: Add possibility to skip TLS verification for upstreams in interceptor (#1307)
General: Allow using HSO and SO with different names (#1293)
General: Support profiling for KEDA components (#1308)

Improvements

General: License compliance monitored with FOSSA (#1423)
Interceptor: Support HTTPScaledObject scoped timeout (#813)

Other

Documentation: Correct the service name used in the walkthrough documentation (#1244)

Open source →

v0.10.1-0.20250711074143-bf355649c63211 Jul 2025pre-release

Nothing published for this version

v0.10.1-0.20250521191236-6a6adfb7acbb21 May 2025pre-release

Nothing published for this version

v0.10.021 Feb 20253 sources agree

General : Fix infrastructure crashes when deleting ScaledObject while scaling

What's Changed

New

General: Fix infrastructure crashes when deleting ScaledObject while scaling (#1245)
General: Fix kubectl active printcolumn (#1211)
General: Support InitialCooldownPeriod for HTTPScaledObject #1213

Other

Documentation: Correct the service name used in the walkthrough documentation (#1244)

All merged PRs

chore(deps): bump golangci/golangci-lint-action from 6.1.1 to 6.2.0 in the all-updates group by @dependabot in #1237
chore(deps): bump the all-updates group across 1 directory with 11 updates by @dependabot in #1238
chore: add missing examples for 0.9.0 by @brunopadz in #1240
Readme: update status message by @zroubalik in #1243
fix(doc): use correct service name by @ldvc in #1244
chore(deps): bump actions/setup-go from 5.2.0 to 5.3.0 in the all-updates group by @dependabot in #1242
chore(deps): bump the all-updates group with 2 updates by @dependabot in #1241
Update compatibility documentation for v0.9.0 by @Spenhouet in #1247
chore(deps): bump the all-updates group with 3 updates by @dependabot in #1249
fix kubectl active printcolumn selector by @wozniakjan in #1248
Fix KEDA Interceptor/Scaler issues when deleting ScaledObject while scaling by @kmd922 in #1245
chore(deps): bump golangci/golangci-lint-action from 6.3.2 to 6.5.0 in the all-updates group by @dependabot in #1253
fix: ingnore Make link in the linkinator workflow by @zroubalik in #1255
chore: run e2e tests against k8s 1.32 by @zroubalik in #1257
chore: fix kind action by @zroubalik in #1259
bump k8s deps to 1.31.6 by @zroubalik in #1256
bump go to 1.23.6 by @zroubalik in #1258
fix: Rename keda-http-add-on-interceptor-proxy to keda-add-ons-http-interceptor-proxy by @kahirokunn in #1037
Add support for initialCooldownPeriod On httpScaledObjects by @shayrybak in #1212
Prepare release v0.10.0 by @wozniakjan in #1260

New Contributors

@brunopadz made their first contribution in #1240
@ldvc made their first contribution in #1244
@Spenhouet made their first contribution in #1247
@kmd922 made their first contribution in #1245
@shayrybak made their first contribution in #1212

Full Changelog: v0.9.0...v0.10.0

Open source →

v0.9.026 Dec 2024Deprecated3 sources agree

General : Drop support for deprecated field spec.scaleTargetRef.deployment

We are happy to release KEDA HTTP Add-on v0.9.0 🎉

Breaking Changes

General: Drop support for deprecated field spec.scaleTargetRef.deployment (#1061)

New

General: Support portName in HTTPScaledObject service scaleTargetRef (#1174)
General: Support setting multiple TLS certs for different domains on the interceptor proxy (#1116)
Interceptor: Add support for for AWS ELB healthcheck probe (#1198)

Fixes

General: Align the interceptor metrics env var configuration with the OTEL spec (#1031)
General: Include trailing 0 window buckets in RPS calculation (#1075)

Other

General: Sign images with Cosign (#1062)

New Contributors

@wozniakjan made their first contribution in #1040
@d4nyll made their first contribution in #1071
@kahirokunn made their first contribution in #1093
@kek-Sec made their first contribution in #1137
@boillodmanuel made their first contribution in #1199
@step-security-bot made their first contribution in #1217

Full Changelog: v0.8.0...v0.9.0

Open source →

v0.8.1-0.20241204161201-45f645f19e6e4 Dec 2024pre-release

Nothing published for this version

v0.8.1-0.20241204091350-ab140c5198cb4 Dec 2024pre-release

Nothing published for this version

v0.8.1-0.20241203185043-ade3bb090b0c3 Dec 2024pre-release

Nothing published for this version

v0.8.1-0.20241028191411-993b7bf2429528 Oct 2024pre-release

Nothing published for this version

v0.8.1-0.20241025094304-fb3e48b94f0525 Oct 2024pre-release

Nothing published for this version

v0.8.1-0.20240902204433-08c811fe205d2 Sept 2024pre-release

Nothing published for this version

v0.8.1-0.20240710142641-81f7469ad1f910 Jul 2024pre-release

Nothing published for this version

v0.8.1-0.20240627095212-1e426128daee27 Jun 2024pre-release

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v0.8.1-0.20240527212335-9f82ff979d2027 May 2024pre-release

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v0.8.1-0.20240526104552-30e7571b190226 May 2024pre-release

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v0.8.1-0.20240520174730-e04c24286eaf20 May 2024pre-release

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v0.8.1-0.20240514071014-0793ecec5a9f14 May 2024pre-release

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v0.8.1-0.20240502143704-7d1740ab82e12 May 2024pre-release

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v0.8.02 May 2024Deprecated2 sources agree

You can find all deprecations in this overview and join the discussion here.

New

General: Add configurable TLS on the wire support to the interceptor proxy (#907)
General: Add support for collecting metrics using a Prometheus compatible endpoint or by sending metrics to an OpenTelemetry's HTTP endpoint (#910)
General: Propagate HTTPScaledObject labels and annotations to ScaledObject (#840)
General: Provide support for allowing HTTP scaler to work alongside other core KEDA scalers (#489)
General: Support aggregation windows (#882)

Fixes

General: Ensure operator is aware about changes on underlying ScaledObject (#900)

Deprecations

You can find all deprecations in this overview and join the discussion here.

General: Deprecated targetPendingRequests in favor of spec.scalingMetric.*.targetValue (#959)

Other

General: Align with the new format of Ingress in the example demo (#979)
General: Unify loggers (#958)

Open source →

v0.7.1-0.20240316154000-793a48d2356616 Mar 2024pre-release

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v0.7.1-0.20240214102309-5e7af247835d14 Feb 2024pre-release

Nothing published for this version

v0.7.1-0.20240129180647-d337c8d4e4f029 Jan 2024pre-release

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v0.7.022 Jan 2024Deprecated2 sources agree

You can find all deprecations in this overview and join the discussion here.

Breaking Changes

General: host field has been removed in favor of hosts in HTTPScaledObject (#552|#888)

New

General: Support any resource which implements /scale subresource (#438)

Improvements

General: Improve Scaler reliability adding probes and 3 replicas (#870)

Fixes

General: Add new user agent probe (#862)
General: Fix external scaler getting into bad state when retrieving queue lengths fails. (#870)
General: Increase ScaledObject polling interval to 15 seconds (#799)
General: Set forward request RawPath to original request RawPath (#864)

Deprecations

You can find all deprecations in this overview and join the discussion here.

New deprecation(s):

General: Deprecated KEDA_HTTP_DEPLOYMENT_CACHE_POLLING_INTERVAL_MS in favor of KEDA_HTTP_ENDPOINTS_CACHE_POLLING_INTERVAL_MS (#438)

Other

General: Bump golang version (#853)

Open source →

v0.6.1-0.20240115082049-7908755121f115 Jan 2024pre-release

Nothing published for this version

v0.6.1-0.20240104104738-15718d165a384 Jan 2024pre-release

Nothing published for this version

v0.6.05 Oct 2023Deprecated2 sources agree

You can find all deprecations in this overview and join the discussion here.

New

General: Add manifests to deploy the Add-on (#716)

Improvements

Scaler: Decrease memory usage by allowing increasing stream interval configuration (#745)

Fixes

Interceptor: Add support for streaming responses (#743)
Interceptor: Fatal error: concurrent map iteration and map write (#726)
Interceptor: Keep original Host in the Host header (#331)
Interceptor: Provide graceful shutdown for http servers on SIGINT and SIGTERM (#731)
Operator: Remove ScaledObject name & app custom labels (#717)
Scaler: Provide graceful shutdown for grpc server on SIGINT and SIGTERM (#731)
Scaler: Reimplement custom interceptor metrics (#718)

Deprecations

You can find all deprecations in this overview and join the discussion here.

New deprecation(s):

General: host field deprecated in favor of hosts in HTTPScaledObject (#552)

Other

General: Adding a changelog validating script to check for formatting and order (#761)
General: Skip not required CI checks on PRs on new commits (#801)

Open source →

v0.5.1-0.20231005145916-8c18bd8f735f5 Oct 2023pre-release

Nothing published for this version

v0.5.1-0.20230620055250-835f2c0f096520 Jun 2023pre-release

Nothing published for this version

v0.5.016 Jun 2023Deprecated2 sources agree

You can find all deprecations in this overview and join the discussion here.

Breaking Changes

None.

New

General: Log incoming requests using the Combined Log Format (#669)
Routing: Add multi-host support to HTTPScaledObject (#552)
Routing: Support path-based routing (#338)

Improvements

General: Automatically tag Docker image with commit SHA (#567)
Operator: Migrate project to Kubebuilder v3 (#625)
RBAC: Introduce fine-grained permissions per component and reduce required permissions (#612)
Routing: New routing table implementation that relies on the live state of HTTPScaledObjects on the K8s Cluster instead of a ConfigMap that is updated periodically (#605)

Fixes

General: Changes to HTTPScaledObjects now take effect (#605)
General: HTTPScaledObject is the owner of the underlying ScaledObject (#703)
Controller: Use kedav1alpha1.ScaledObject default values (#607)
Routing: Lookup host without port (#608)

Deprecations

You can find all deprecations in this overview and join the discussion here.

New deprecation(s):

General: host field deprecated in favor of hosts in HTTPScaledObject (#552)

Previously announced deprecation(s):

None.

Other

General: Use kubernetes e2e images for e2e test and samples (#665)
e2e tests: Use the same e2e system as in core (#686)

Open source →

v0.4.1-0.20230614223359-fb17e777c9c014 Jun 2023pre-release

Nothing published for this version

v0.4.1-0.20230321111622-daa5900aa58d21 Mar 2023pre-release

Nothing published for this version

v0.4.1-0.20230131163328-9137d9622d2e31 Jan 2023pre-release

Nothing published for this version

v0.4.027 Jan 2023

Nothing published for this version

v0.3.1-0.20230106194928-8ef982f0dc756 Jan 2023pre-release

Nothing published for this version

v0.3.1-0.20221122103457-0a1fbb1ff97622 Nov 2022pre-release

Nothing published for this version

v0.3.1-0.20220615091141-a1fa44cade4715 Jun 2022pre-release

Nothing published for this version

v0.3.1-0.20220506224948-f28fd41f973f6 May 2022pre-release

Nothing published for this version

v0.3.1-0.20220214185504-0057e6b4f93414 Feb 2022pre-release

Nothing published for this version

v0.3.025 Jan 2022

Nothing published for this version

v0.2.1-0.20211119215623-8622cf5deece19 Nov 2021pre-release

Nothing published for this version

v0.2.016 Nov 2021

Nothing published for this version

v0.1.1-0.20211025191002-30fb204671f125 Oct 2021pre-release

Nothing published for this version

v0.1.1-0.20210714195307-b5a81bb39fef14 Jul 2021pre-release

Nothing published for this version

v0.1.024 Jun 2021

Nothing published for this version

v0.0.2-0.20210422184911-c44234a072a522 Apr 2021pre-release

Nothing published for this version

v0.0.2-0.20210421082703-b74cbaa05c4a21 Apr 2021pre-release

Nothing published for this version

Your coding agent can read these notes before it upgrades. Set up the MCP server →

github.com/kedacore/http-add-on

Release timeline

Releases

Highlights

Static routes (#1622)

Direct-to-pod routing (#1473)

Bounded cold-start requests (#1732)

Cold-start observability (#1721, #1776)

TLS and supply-chain improvements (#1728, #1715, #1604)

Deprecations

What's Changed

New Contributors

New

Improvements

Fixes

Deprecations

Highlights

HTTP/2 and gRPC support (#1084)

Cold-start placeholder responses (#874)

Scaler resilience (#1667)

Graceful shutdown (#1636)

Deprecations

What's Changed

New Contributors

New

Improvements

Fixes

Deprecations

Breaking Changes

Interceptor timeout defaults changed (#1474)

Interceptor metrics redesigned (#1563, #1590)

Highlights

New documentation (#1516)

InterceptorRoute CRD (#1532)

Per-route timeout configuration (#1562)

Migration helper: orphan-scaledobject annotation (#1593)

What's Changed

Breaking Changes

New

Improvements

Fixes

Deprecations

Other

What's Changed

New Contributors

Breaking Changes

Improvements

Fixes

Other

Upgrade Notes

Improvements

Fixes

What's Changed

Fixes

Breaking Changes

HTTPScaledObject CRD must be updated (#1419)

Highlights

Wildcard host matching (#1411)

HTTP header-based routing (#1289)

Performance improvements (#1404)

Full-duplex HTTP/1.1 support (#1386)

Configurable request logging (#1375)

What's Changed

New Contributors

Breaking Changes

New

Improvements

Fixes

Deprecations

Other

What's Changed

New Contributors

Improvements

What's Changed

New Contributors

Breaking Changes

New

Improvements

Other

What's Changed