This release includes breaking changes for platform teams planning a safe upgrade.
✓ No known CVEs patched in this version
Topics
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ReleasePort's take
Light signalThe release adds an OLLIE enabled service toggle via the ollieEnabled flag.
Why it matters: Enables controlled activation of OLLIE features for testing or phased rollout; monitor toggle usage metrics to assess adoption impact.
Summary
AI summaryAdded an OLLIE enabled service toggle.
Changes in this release
| Type | Severity | Summary | CVE |
|---|---|---|---|
| Feature | Medium |
SDK driver — FastAPI bridge for Opik Python SDK SDK driver — FastAPI bridge for Opik Python SDK Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Feature | Medium |
consume lite workspace endpoint with safe fallback consume lite workspace endpoint with safe fallback Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Feature | Medium |
add ollieEnabled service toggle from TOGGLE_OLLIE_ENABLED add ollieEnabled service toggle from TOGGLE_OLLIE_ENABLED Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Performance | Medium |
emit base2 exponential histograms for HTTP server metrics emit base2 exponential histograms for HTTP server metrics Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
gate onboarding demo-loading flow on demoDataEnabled toggle gate onboarding demo-loading flow on demoDataEnabled toggle Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Bugfix | Medium |
prevent permit orphans and counter underflow in bestEffortLock prevent permit orphans and counter underflow in bestEffortLock Source: llm_adapter@2026-05-21 Confidence: high |
— |
| Bugfix | Medium |
suppress Gemma reasoning, bump deprecated Gemini/Vertex default models suppress Gemma reasoning, bump deprecated Gemini/Vertex default models Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
assign palette color to auto-created environments assign palette color to auto-created environments Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Bugfix | Medium |
isolate experiment-project-migration on a dedicated scheduler isolate experiment-project-migration on a dedicated scheduler Source: llm_adapter@2026-05-21 Confidence: low |
— |
| Other | Medium |
update automatically OpenAPI spec and Fern code update automatically OpenAPI spec and Fern code Source: llm_adapter@2026-05-21 Confidence: low |
— |
Full changelog
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
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About opik
Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
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Earlier breaking changes
- v2.0.38 Split stats query and gate legacy feedback_scores UNION in BE.
Beta — feedback welcome: [email protected]