Langfuse

What's Changed
* feat(api): add notice regarding hostname to default 401 by marcklingen in https://github.com/langfuse/langfuse/pull/1088
* feat: expand generation model units by hassiebp in https://github.com/langfuse/langfuse/pull/1095
* feat(dashboard): enable selection of score names in legend of chart + slider by khareyash05 in https://github.com/langfuse/langfuse/pull/907
* fix: openai model prices by maxdeichmann in https://github.com/langfuse/langfuse/pull/1068
* chore: upgrade dependencies

New Contributors
* hassiebp made their first contribution in https://github.com/langfuse/langfuse/pull/1095

**Full Changelog**: https://github.com/langfuse/langfuse/compare/v2.1.2...v2.2.0

What's Changed

* perf(frontend): do not load observation i/o from db on traces.byId by maxdeichmann in https://github.com/langfuse/langfuse/pull/1053
* fix(frontend): remove `Expires` from S3 PutObject by marcklingen in https://github.com/langfuse/langfuse/pull/1047
* chore(cloud): add environment labeling by marcklingen in https://github.com/langfuse/langfuse/pull/1058
* chore(deps): bump deps by dependabot in https://github.com/langfuse/langfuse/pull/1040, https://github.com/langfuse/langfuse/pull/1038, https://github.com/langfuse/langfuse/pull/1039, https://github.com/langfuse/langfuse/pull/1037


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v2.1.1...v2.1.2

What's Changed
* fix(frontend): generation exports from UI by marcklingen in https://github.com/langfuse/langfuse/pull/1042
* upcoming change: streaming of exports to S3 to support exports which are larger than the available memory. These currently fail.


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v2.1.0...v2.1.1

What's Changed
* feat(models): allow custom regex for user-defined models by RichardKruemmel in https://github.com/langfuse/langfuse/pull/1022 and https://github.com/langfuse/langfuse/pull/1031
* feat(models): allow to set input/output/total price without restrictions by marcklingen in https://github.com/langfuse/langfuse/pull/1029 and https://github.com/langfuse/langfuse/pull/1030
* security: upgrade nodemailer from 6.9.8 to 6.9.9 by maxdeichmann in https://github.com/langfuse/langfuse/pull/1027
* chore(deps): bump the patches group with 4 updates by dependabot in https://github.com/langfuse/langfuse/pull/1035


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v2.0.1...v2.1.0

What's Changed
* fix(ui): fix create new model label by RichardKruemmel in https://github.com/langfuse/langfuse/pull/1005
* feat(db): add openai fine tuned and vertex ai models by RichardKruemmel in https://github.com/langfuse/langfuse/pull/995
* chore(deps-dev): bump mermaid-js/mermaid-cli from 10.6.1 to 10.7.0 by dependabot in https://github.com/langfuse/langfuse/pull/1003
* chore(deps): bump the sentry group with 1 update by dependabot in https://github.com/langfuse/langfuse/pull/1000
* chore(deps-dev): bump testing-library/jest-dom from 6.2.1 to 6.4.0 by dependabot in https://github.com/langfuse/langfuse/pull/988
* fix: display total cost correctly by maxdeichmann in https://github.com/langfuse/langfuse/pull/1026
* fix: gh action by maxdeichmann in https://github.com/langfuse/langfuse/pull/1028


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v2.0.0...v2.0.1

> [!IMPORTANT]
> This is a major release of Langfuse as it requires to run a [one-off (non-blocking) migration script](https://langfuse.com/changelog/2024-01-29-custom-model-prices#upgrade-path) on historical data to ensure accurate LLM costs in Langfuse.
> - No changes are required if you use Langfuse Cloud or are only concerned about newly ingested traces.
> - There are no other breaking changes.

What's Changed
* **Fully rebuilt usage/cost tracking of LLM generations in Langfuse** by maxdeichmann and marcklingen
* New _model definition_ abstraction which allows to:
* Quickly support newly emerging models.
* Track changes in model prices over time.
* Add custom models/prices at the project level.
* You can also set (token) usage and cost via the API when ingesting traces.
* Usage and cost information on all UI tables and APIs.
* See [changelog](https://langfuse.com/changelog/2024-01-29-custom-model-prices) and [docs](https://langfuse.com/docs/model-usage-and-cost) for full details on this change.
* Other changes
* feat(ui): add improved prompt ui with better versioning by RichardKruemmel in https://github.com/langfuse/langfuse/pull/961
* feat(ui): filtering by scores to the generations table in https://github.com/langfuse/langfuse/pull/880
* feat: add new openai model prices by maxdeichmann in https://github.com/langfuse/langfuse/pull/967
* feat(db): improve seeding script for prompts by RichardKruemmel in https://github.com/langfuse/langfuse/pull/965
* fix(security): add validation for html in inputs by RichardKruemmel in https://github.com/langfuse/langfuse/pull/927
* fix(sessions): composite ids by marcklingen in https://github.com/langfuse/langfuse/pull/946
* fix(ui): retrieve prompts created via API by maxdeichmann in https://github.com/langfuse/langfuse/pull/963
* fix: error log for api prompts by RichardKruemmel in https://github.com/langfuse/langfuse/pull/966
* chore(deps): bump dependencies in https://github.com/langfuse/langfuse/pull/970, https://github.com/langfuse/langfuse/pull/936, https://github.com/langfuse/langfuse/pull/979, https://github.com/langfuse/langfuse/pull/986, https://github.com/langfuse/langfuse/pull/983, https://github.com/langfuse/langfuse/pull/985
* refactor: typing of AutoCompleteOption by marcklingen in https://github.com/langfuse/langfuse/pull/978
* refactor: db logging in dev mode by maxdeichmann in https://github.com/langfuse/langfuse/pull/952


**Full Changelog**: https://github.com/langfuse/langfuse/compare/v1.34.1...v2.0.0