{"schemaVersion":"2026-07-21.signal.v2","id":"live-49d67d1a818ab66574dd","title":"Langfuse v4.45.3","slug":"langfuse-v4-45-3-langfuse-v4-45-3-6574dd","url":"https://www.niubiagent.com/signals/langfuse-v4-45-3-langfuse-v4-45-3-6574dd","jsonUrl":"https://www.niubiagent.com/api/posts/langfuse-v4-45-3-langfuse-v4-45-3-6574dd.json","markdownUrl":"https://www.niubiagent.com/content/langfuse-v4-45-3-langfuse-v4-45-3-6574dd","summaryHuman":"Langfuse releases published Langfuse v4.45.3. What's Changed chore(deps): bump image-size to 2.0.4 by @github-actions bot in 17917 fix(web): log the public key when an API key lookup fails by @benlangfeld in 16375 fix(llm-connections): reject TypeSafe base URLs that end in /systemone or have a query string by @DavidTraina in 17901 fix(llm-connections): keep…","summaryAgent":"Treat Langfuse v4.45.3 as an official release signal. Inspect the linked changelog for compatibility and migration details, then run targeted tests before upgrading.","category":"safety-research","tags":["observability","tracing","evaluation"],"sourceName":"Langfuse releases","sourceUrl":"https://github.com/langfuse/langfuse/releases/tag/v4.45.3","publishedAt":"2026-09-25T09:19:59Z","curatedAt":"2026-09-25T12:17:41.920Z","confidence":0.96,"agentUsefulness":82,"sponsorIds":[],"language":"en","contentMode":"release-watch","verifiedAt":"2026-09-25T12:17:41.920Z","changeType":"release","actionItems":["Review the official Langfuse releases release notes before upgrading.","Check compatibility, migration, and security notes against your current agent stack.","Run focused regression tests before production rollout."],"body":"Langfuse releases published Langfuse v4.45.3. This release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: What's Changed chore(deps): bump image-size to 2.0.4 by @github-actions bot in 17917 fix(web): log the public key when an API key lookup fails by @benlangfeld in 16375 fix(llm-connections): reject TypeSafe base URLs that end in /systemone or have a query string by @DavidTraina in 17901 fix(llm-connections): keep the custom TypeSafe base URL when switching upstreams by @DavidTraina in 17904 fix(evals): keep the current decision model selectable by @DavidTraina in 17905 fix(evals): list each decision model once when a custom model matches a default by @DavidTraina in 17915 New Contributors @benlangfeld made their first contribution in 16375 Full Changelog : v4.45.2...v4.45.3","sponsors":[]}