What's Changed

Features

• feat: add BatchProjectCleaner as an optimization when multiple project deletions are pending by @sumerman in https://github.com/langfuse/langfuse/pull/11476
• feat: move batchProjectCleaner to use BullMQ by @sumerman in https://github.com/langfuse/langfuse/pull/11504
• feat(corrections): add JSON validation toggle by @marliessophie in https://github.com/langfuse/langfuse/pull/11520
• feat(corrections): add global toggle for showing corrections in session and IOPreview components by @marliessophie in https://github.com/langfuse/langfuse/pull/11522
• feat: extend BatchProjectCleanerJob to handle dataset run items by @sumerman in https://github.com/langfuse/langfuse/pull/11528
• feat(otel): support mapping of custom trace_id for litellm by @jannikmaierhoefer in https://github.com/langfuse/langfuse/pull/11553
• feat: cursor-based sequential processing for event propagation by @Steffen911 in https://github.com/langfuse/langfuse/pull/11561
• feat(corrections): support diff viewer between actual vs. corrected output by @marliessophie in https://github.com/langfuse/langfuse/pull/11556

Fixes

• fix: enforce plan limits for org member invites by @Steffen911 in https://github.com/langfuse/langfuse/pull/11455
• fix: ensure correct numeric handling of usage_details values instead of concatenation by @Steffen911 in https://github.com/langfuse/langfuse/pull/11472
• fix(api): make retention optional and fix metadata handling in update project by @Steffen911 in https://github.com/langfuse/langfuse/pull/11442
• fix(tables): small row height spacing equalized by @nimarb in https://github.com/langfuse/langfuse/pull/11478
• fix: posthog reset by @nimarb in https://github.com/langfuse/langfuse/pull/11481
• fix: make BatchProjectCleaner start conditional for events table by @sumerman in https://github.com/langfuse/langfuse/pull/11480
• fix: posthog init by @nimarb in https://github.com/langfuse/langfuse/pull/11482
• fix: make BatchProjectCleaner start conditional for events table by @sumerman in https://github.com/langfuse/langfuse/pull/11483
• fix: return empty string for correction data type by @marliessophie in https://github.com/langfuse/langfuse/pull/11490
• fix: update dataset name duplication logic to append "(copy)" by @marliessophie in https://github.com/langfuse/langfuse/pull/11494
• fix: deleteEventsByTraceIds should respect global deletion timeout by @sumerman in https://github.com/langfuse/langfuse/pull/11491
• fix(trace): add beta toggle instead of tab by @nimarb in https://github.com/langfuse/langfuse/pull/11495
• fix: add search for prompt version dropdown by @marliessophie in https://github.com/langfuse/langfuse/pull/11500
• fix: prevent retention configuration drift when queues are backlogged by @sumerman in https://github.com/langfuse/langfuse/pull/11502
• fix(otel-ingestion-ai-sdk): parse usage from both ai.usage and providerMetadata by @hassiebp in https://github.com/langfuse/langfuse/pull/11498
• fix(api): fix score API environment filtering for session scores by @sumerman in https://github.com/langfuse/langfuse/pull/11515
• fix(score-analytics): include source type in distribution chart legends by @Lotte-Verheyden in https://github.com/langfuse/langfuse/pull/11458
• fix(filters): date picker time adjustments don't change value by @nimarb in https://github.com/langfuse/langfuse/pull/11531
• fix: fixing bullmq config for BatchProjectDelete. removing accidentally commited dataModel changes. by @sumerman in https://github.com/langfuse/langfuse/pull/11551
• fix(slack): install endpoint by @Steffen911 in https://github.com/langfuse/langfuse/pull/11566
• fix(trace): ensure JSON expansion state is honoured across traces by @nimarb in https://github.com/langfuse/langfuse/pull/11518
• fix(events-ingestion): add trace_name to direct writes by @hassiebp in https://github.com/langfuse/langfuse/pull/11559

Chores

• chore: add sign up event by @nimarb in https://github.com/langfuse/langfuse/pull/11473
• style: display message for non-annotation scores in AnnotationDrawer by @marliessophie in https://github.com/langfuse/langfuse/pull/11497
• chore(dataset-item-events): drop unused tables and sys_id col by @marliessophie in https://github.com/langfuse/langfuse/pull/11136
• chore(annotation-queue-ui): add onOpenChange callback for smooth scrolling behavior when the dropdown opens by @marliessophie in https://github.com/langfuse/langfuse/pull/11527
• chore(ui): show 1pass modal only for sign-up/sign-in input fields by @marliessophie in https://github.com/langfuse/langfuse/pull/11530
• chore: add span attributes for session span by @maxdeichmann in https://github.com/langfuse/langfuse/pull/11549
• chore: LANGFUSE_BATCH_PROJECT_CLEANER_SLEEP_ON_EMPTY_MS bump by @sumerman in https://github.com/langfuse/langfuse/pull/11554
• chore: forbidden on excessive chatcompletion use by @nimarb in https://github.com/langfuse/langfuse/pull/11555
• chore: reduce event dual write timestamp buffer from 3.5min to 2min by @Steffen911 in https://github.com/langfuse/langfuse/pull/11552
• chore(sessions): enhance TraceRow component with annotation queue item creation functionality by @marliessophie in https://github.com/langfuse/langfuse/pull/11560

Full Changelog: https://github.com/langfuse/langfuse/compare/v3.146.0...v3.147.0