Langfuse Files

⚠️⚠️⚠️ This release removes automatic tokenization, as we believe no one should be relying on it. Read our change log to learn more. ⚠️⚠️⚠️

What's Changed

Features

• feat(topics): proper cost tracking for executions by @nimarb in https://github.com/langfuse/langfuse/pull/19432
• feat(external-media-storage): make external media storage an enterprise feature by @wochinge in https://github.com/langfuse/langfuse/pull/19778
• feat(web): use Langfuse by ClickHouse logo in the app shell and auth screens by @marcklingen in https://github.com/langfuse/langfuse/pull/19740
• feat(ai-gateway): add Amazon Bedrock upstream with API key auth by @wochinge in https://github.com/langfuse/langfuse/pull/19732
• feat(skills): open Markdown file links in the editor by @tobi12345 in https://github.com/langfuse/langfuse/pull/19822
• feat(ai-gateway): size the memory budget from the cgroup limit by @hassiebp in https://github.com/langfuse/langfuse/pull/19813
• feat(ingestion): compute event size in ClickHouse by @sumerman in https://github.com/langfuse/langfuse/pull/19727
• feat(topics): run per-trace Topics summaries on their own queue by @LysanderKie in https://github.com/langfuse/langfuse/pull/19397
• feat(ai-gateway): custom base URLs and extra headers for OpenAI and Anthropic connections by @wochinge in https://github.com/langfuse/langfuse/pull/19768
• feat(halo): load complete skill bundles through Mastra SkillSource by @tobi12345 in https://github.com/langfuse/langfuse/pull/19791
• perf(ai-gateway): pre-connect web clients before reporting ready by @wochinge in https://github.com/langfuse/langfuse/pull/19848
• feat(api): point legacy traces deprecation at the per-trace recipe by @niklassemmler in https://github.com/langfuse/langfuse/pull/19844
• feat(events-dispatch): store transcripts and enqueue per-trace Topics jobs from recorded rules by @LysanderKie in https://github.com/langfuse/langfuse/pull/19797
• feat(ui): guide users to submit missing token usage by @sumerman in https://github.com/langfuse/langfuse/pull/19803
• perf(ai-gateway): re-render only the toggled model row by @wochinge in https://github.com/langfuse/langfuse/pull/19858
• feat(worker): stop inferring observation usage from content by @sumerman in https://github.com/langfuse/langfuse/pull/19802
• feat(external-media-storage): support IAM role auth for Amazon S3 buckets by @wochinge in https://github.com/langfuse/langfuse/pull/19721
• feat(events-dispatch): optionally read and store every dispatched trace by @LysanderKie in https://github.com/langfuse/langfuse/pull/19850
• feat(web): top banner for legacy v3 usage on Langfuse Cloud by @maxdeichmann in https://github.com/langfuse/langfuse/pull/19591
• feat(blob-storage): support IAM role auth for Amazon S3 exports by @wochinge in https://github.com/langfuse/langfuse/pull/19723
• feat(monitors): show the metric value and unit in alert messages by @marksalpeter in https://github.com/langfuse/langfuse/pull/19872
• feat(ai-gateway): show model routes as badges with overflow by @wochinge in https://github.com/langfuse/langfuse/pull/19876
• feat: Add support for project_id by @jordibosch20 in https://github.com/langfuse/langfuse/pull/19860
• feat(audit-logs): record read-access events for public API list routes by @Steffen911 in https://github.com/langfuse/langfuse/pull/19758
• feat(events-dispatch): trace each job separately with its read shape by @LysanderKie in https://github.com/langfuse/langfuse/pull/19890
• feat(web): AI Gateway sidebar section and org landing by @wochinge in https://github.com/langfuse/langfuse/pull/19888
• feat(normalized-io): improve langchain normalization by @marliessophie in https://github.com/langfuse/langfuse/pull/19019

Fixes

• fix(sessions): Session tab in trace ui improvements by @bezbac in https://github.com/langfuse/langfuse/pull/19786
• fix(web): badge colours follow one naming and border rule by @nmtrang29 in https://github.com/langfuse/langfuse/pull/19317
• fix(web): load score configs for read-only users by @marliessophie in https://github.com/langfuse/langfuse/pull/19837
• fix(monitors): carry alert filters to the observations data link by @marksalpeter in https://github.com/langfuse/langfuse/pull/19781
• fix(analytics): keep ids and names out of app landing paths, read gbraid and wbraid by @AbdallahAHO in https://github.com/langfuse/langfuse/pull/19799
• fix(web): keep switcher names out of session replay by @nkabardin in https://github.com/langfuse/langfuse/pull/19827
• fix(web): escape header row when exporting widget chart data as CSV by @rajatnagda45 in https://github.com/langfuse/langfuse/pull/18128
• fix(dashboards): show a scroll fade on overflowing chart lists (LFE-16442) by @nkabardin in https://github.com/langfuse/langfuse/pull/19818
• fix(storage-role-auth): make the trust policy copyable before the external ID is shown by @wochinge in https://github.com/langfuse/langfuse/pull/19871
• fix(web): show trace-level CORRECTION scores in the single-trace UI by @marliessophie in https://github.com/langfuse/langfuse/pull/19700
• fix(query-ast): bind a tuple element of a lambda parameter by value by @niklassemmler in https://github.com/langfuse/langfuse/pull/19885
• fix(prompts): ignore empty all-of/none-of array filters in Postgres filters by @wochinge in https://github.com/langfuse/langfuse/pull/19903
• fix(worker): truncate oversized score fields in PostHog and Mixpanel exports by @niklassemmler in https://github.com/langfuse/langfuse/pull/19798
• fix(dashboards): skip WITH FILL when fill bounds would overflow ClickHouse DateTime by @niklassemmler in https://github.com/langfuse/langfuse/pull/19886
• fix(dashboards): exclude deleted scores from the scores join when FINAL is skipped by @niklassemmler in https://github.com/langfuse/langfuse/pull/19884
• fix(ai-gateway): block custom base URLs from session replay by @wochinge in https://github.com/langfuse/langfuse/pull/19919
• fix(evals): block evaluators on a bare HTTP 403 like Topics does by @wochinge in https://github.com/langfuse/langfuse/pull/19940
• fix(query-ast): parenthesise the existing condition when injecting tenancy and soft-delete filters by @niklassemmler in https://github.com/langfuse/langfuse/pull/19918
• fix(query-ast): always qualify the tenancy-injected project_id by @niklassemmler in https://github.com/langfuse/langfuse/pull/19946
• fix(ai-gateway): label the provider card refresh action as refreshing models by @wochinge in https://github.com/langfuse/langfuse/pull/19952

Chores

• test(skills): cover tenant isolation and viewer write denials by @tobi12345 in https://github.com/langfuse/langfuse/pull/19819
• chore(deps): bump posthog-js to 1.444.0 and posthog-node to 5.61.1 by @AbdallahAHO in https://github.com/langfuse/langfuse/pull/19800
• chore(agentmd): prune for topics by @nimarb in https://github.com/langfuse/langfuse/pull/19811
• refactor(web): remove eslint disables from UsersTable by @cursor[bot] in https://github.com/langfuse/langfuse/pull/19838
• test(shared): cover external media storage allowed-hosts mode by @wochinge in https://github.com/langfuse/langfuse/pull/19839
• test(ai-gateway): cover cross-organization and missing-scope calls to the model test route by @wochinge in https://github.com/langfuse/langfuse/pull/19841
• test(shared): golden SQL snapshots for metrics v2 score views by @niklassemmler in https://github.com/langfuse/langfuse/pull/19843
• test(query-ast): record golden SQL baselines for v2 observations dashboard view by @niklassemmler in https://github.com/langfuse/langfuse/pull/19812
• chore(topics): drop trace target compatibility read by @marliessophie in https://github.com/langfuse/langfuse/pull/19792
• chore(worker): remove background tokenizer pool by @sumerman in https://github.com/langfuse/langfuse/pull/19846
• chore(clickhouse): label id, session, time-range and project scans in query_shape by @niklassemmler in https://github.com/langfuse/langfuse/pull/19881
• refactor(storage): pass a single credentials object to StorageServiceFactory by @wochinge in https://github.com/langfuse/langfuse/pull/19882
• test(shared): drop isEnrichedBlobExportAvailable deletion guard by @nkabardin in https://github.com/langfuse/langfuse/pull/19801
• test(worker): drop duplicate silent score-batch reject by @nkabardin in https://github.com/langfuse/langfuse/pull/19892
• refactor(web): search bar adapter also emits a shared Predicate by @niklassemmler in https://github.com/langfuse/langfuse/pull/19849
• chore(query-ast): add a WHERE-only condition compiler and metadata-aware events routing by @niklassemmler in https://github.com/langfuse/langfuse/pull/19806
• ci: mask generated AI gateway signing secrets in e2e job logs by @wochinge in https://github.com/langfuse/langfuse/pull/19937
• ci: drop pipeline.yml from the AI gateway e2e path filter by @wochinge in https://github.com/langfuse/langfuse/pull/19938
• test(ai-gateway): cover private-network destinations on custom endpoint routes by @wochinge in https://github.com/langfuse/langfuse/pull/19921
• test(blob-storage): cover cross-project and missing-scope external ID reads by @wochinge in https://github.com/langfuse/langfuse/pull/19920
• test(ai-gateway): reject forbidden extra headers on every connection route by @wochinge in https://github.com/langfuse/langfuse/pull/19922
• fix(ci): recompile agentic workflows with gh-aw v1.0.1 to ride out release download outages by @wochinge in https://github.com/langfuse/langfuse/pull/19939
• chore(query-ast): lower events predicates to Kysely with a FilterList-equivalent SQL bridge by @niklassemmler in https://github.com/langfuse/langfuse/pull/19793

New Contributors

• @rajatnagda45 made their first contribution in https://github.com/langfuse/langfuse/pull/18128

Full Changelog: https://github.com/langfuse/langfuse/compare/v4.76.0...v4.77.0