What's Changed

• build: set exclude-newer to 7 days by @wochinge in #1595
• ci(dependabot): add github-actions ecosystem with grouped updates by @wochinge in #1597
• ci: pin and bump GH actions by @wochinge in #1596
• chore(deps): bump the github-actions group across 1 directory with 3 updates by @dependabot[bot] in #1599
• fix(experiments): fix unstable local experiment IDs for local data by @hassiebp in #1600

New Contributors

• @wochinge made their first contribution in #1595

Full Changelog: v4.0.4...v4.0.5

What's Changed

• chore: migrate repo from poetry to uv by @hassiebp in #1589

Full Changelog: v4.0.3...v4.0.4

What's Changed

• chore(deps-dev): bump langchain-core from 1.2.11 to 1.2.22 by @dependabot[bot] in #1586
• fix(langchain): exit propagation context gracefully by @hassiebp in #1588

Full Changelog: v4.0.2...v4.0.3

What's Changed

• fix(openai): correct token details field names for Response API usage by @zachrobo1 in #1564
• fix(openai): include responses instructions in captured prompt by @D-Joey-G in #1565
• fix(observe): Handle asyncio.CancelledError in exception blocks by @jinohkang-theori in #1566
• chore: relax packaging constraint to <27 by @hassiebp in #1570
• feat(api): update API spec from langfuse/langfuse a6c38c6 by @langfuse-bot in #1574
• chore(deps): bump requests from 2.32.5 to 2.33.0 by @dependabot[bot] in #1579
• fix(scores): parse session ID correctly by @hassiebp in #1582
• chore: fix flaky langchain tests by @hassiebp in #1584
• fix(experiments): maintain propagated context in async experiments by @hassiebp in #1587

New Contributors

• @zachrobo1 made their first contribution in #1564
• @D-Joey-G made their first contribution in #1565
• @jinohkang-theori made their first contribution in #1566

Full Changelog: v4.0.1...v4.0.2

What's Changed

• feat(api): update API spec from langfuse/langfuse e84ca45 by @langfuse-bot in #1562
• chore(deps-dev): bump orjson from 3.11.3 to 3.11.6 by @dependabot[bot] in #1563
• feat(api): update API spec from langfuse/langfuse b3adfc3 by @langfuse-bot in #1567

Full Changelog: v4.0.0...v4.0.1

v4.0.0

Breaking changes and migration guide

Please see our documentation.

Other changes

• chore(deps-dev): bump werkzeug from 3.1.5 to 3.1.6 by @dependabot[bot] in #1531
• chore: upgrade ruff + merge configurations by @akx in #1535
• fix(media): reuse httpx client for requests by @hassiebp in #1537
• feat!: prepare v4 release by @hassiebp in #1486
• feat(api): update API spec from langfuse/langfuse 784ab09 by @langfuse-bot in #1538
• fix(media): retry failed uploads by @hassiebp in #1540
• feat(api): update API spec from langfuse/langfuse 25b5139 by @langfuse-bot in #1543
• chore(deps-dev): bump langgraph-checkpoint from 3.0.0 to 4.0.0 by @dependabot[bot] in #1541
• feat(api): update API spec from langfuse/langfuse a93f65a by @langfuse-bot in #1545
• fix(langchain): skip priority-tier keys when subtracting token detail counts by @Br1an67 in #1549
• fix(experiment): replace escaped newlines with actual newlines in format output by @Br1an67 in #1547
• fix(openai): remove unreachable None type assignments for OpenAI classes by @Br1an67 in #1546
• Add handling for invalid tool calls in CallbackHandler by @deershark in #1550
• fix: apply stricter early routing for base64 media to prevent SSE dat… by @MoonSangJin in #1544
• chore: unify logging usage by @akx in #1539
• fix(client): pass release variable to span clients by @hassiebp in #1518
• feat(api): update API spec from langfuse/langfuse 2eaf041 by @langfuse-bot in #1556
• chore(deps-dev): bump langgraph from 1.0.9 to 1.0.10rc1 by @dependabot[bot] in #1560

New Contributors

• @akx made their first contribution in #1535
• @Br1an67 made their first contribution in #1549
• @deershark made their first contribution in #1550
• @MoonSangJin made their first contribution in #1544

Full Changelog: v3.14.5...v4.0.0

Breaking changes

Please see the preview migration guide for full details.

New Contributors

• @akx made their first contribution in #1535

Full Changelog: v3.14.5...v4.0.0b1

What's Changed

• feat(batch-evaluation): add trace tags and roll up scores to trace by @hassiebp in #1530

Full Changelog: v3.14.4...v3.14.5

What's Changed

• fix(experiments): remove dataset version from run item request if None by @hassiebp in #1529

Full Changelog: v3.14.3...v3.14.4

What's Changed

• fix(openai): parse finish_reason from chat completion stream by @hassiebp in #1526

Full Changelog: v3.14.2...v3.14.3