Langfuse

What's Changed
* fix(api): handle empty usage object gracefully by maxdeichmann in https://github.com/langfuse/langfuse/pull/696


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.18.0...v1.18.1

What's Changed
* fix: upgrade sentry by maxdeichmann in https://github.com/langfuse/langfuse/pull/687
* chore(deps-dev): bump typescript-eslint/parser from 6.13.2 to 6.14.0 by dependabot in https://github.com/langfuse/langfuse/pull/681
* chore(deps): bump lucide-react from 0.294.0 to 0.295.0 by dependabot in https://github.com/langfuse/langfuse/pull/689
* feat(api): support v2 SDKs (644) by maxdeichmann in https://github.com/langfuse/langfuse/pull/656


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.17.3...v1.18.0

What's Changed
* UI fixes and improvements
* Upgrade dependencies


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.17.2...v1.17.3

What's Changed
- fix: The sessions frontend table encountered an error for sessions where the userId is null.

**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.17.1...v1.17.2

What's Changed
* fix(api): add logging to sessions router by maxdeichmann in https://github.com/langfuse/langfuse/pull/683


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.17.0...v1.17.1

What's Changed
* feat: session tracking and i/o on traces by marcklingen in https://github.com/langfuse/langfuse/pull/588
* See docs for details and live demo: [langfuse.com/docs/sessions](https://langfuse.com/docs/sessions)

**Other**
* feat(ui): show score comments on hover across ui by marcklingen in https://github.com/langfuse/langfuse/pull/677
* feat(ui): in-app help popups re sessions by marcklingen in https://github.com/langfuse/langfuse/pull/678
* feat(docs): architecture overview added to contributing file by maxdeichmann in https://github.com/langfuse/langfuse/pull/673
* fix(fern): fix python generator by maxdeichmann in https://github.com/langfuse/langfuse/pull/674
* fix(logging): remove log from trpc router by maxdeichmann in https://github.com/langfuse/langfuse/pull/675

**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.16.0...v1.17.0