Rasa

- [929](https://github.com/rasahq/rasa-sdk/issues/929): Added the ability to decompress deflate encoded
json payloads for the webhook endpoint of the
action server.

- [11207](https://github.com/rasahq/rasa/issues/11207): Update documentation for customizable classes such as tracker stores, event brokers and lock stores.

Miscellaneous internal changes
- [11296](https://github.com/rasahq/rasa/issues/11296)

- [10430](https://github.com/rasahq/rasa/issues/10430): Fix failed check in `rasa data validate` that verifies forms in rules or stories are consistent with the domain when the rule or story contains a default action as `active_loop` step.

- [10989](https://github.com/rasahq/rasa/issues/10989): [NLU training data](nlu-training-data.mdx) in JSON format is deprecated and will be removed in Rasa Open Source 4.0.
Please use `rasa data convert nlu -f yaml --data <path to NLU data>` to convert your NLU JSON data to YAML format before support for NLU JSON data is removed.

Improvements
- [10696](https://github.com/rasahq/rasa/issues/10696): Make `TrackerStore` interface methods asynchronous and supply an `AwaitableTrackerstore` wrapper for custom tracker stores which do not implement the methods as asynchronous.
- [10897](https://github.com/rasahq/rasa/issues/10897): Added flag `use_gpu` to `TEDPolicy` and `UnexpecTEDIntentPolicy` that can be used to enable training on CPU even when a GPU is available.
- [11102](https://github.com/rasahq/rasa/issues/11102): Add `--endpoints` command line parameter to `rasa train` parser.

Bugfixes
- [11129](https://github.com/rasahq/rasa/issues/11129): The azure botframework channel now validates the incoming JSON Web Tokens (including signature).

Previously, JWTs were not validated at all.
- [9386](https://github.com/rasahq/rasa/issues/9386): `rasa shell` now outputs custom json unicode characters instead of `\uxxxx` codes

Improved Documentation
- [11130](https://github.com/rasahq/rasa/issues/11130): Clarify aspects of the API spec
* `GET /status endpoint`: Correct response schema for model_id - a string, not an object.
* `GET /conversations/{conversation_id}/tracker`: Describe each of the enum options for include_events query parameter
* `POST & PUT /conversations/{conversation_id}/tracker/eventss`: Events schema added for each event type
* `GET /conversations/{conversation_id}/story`: Clarified the all_sessions query parameter and default behaviour.
* `POST /model/test/intents`: Remove JSON payload option since it is not supported
* `POST /model/parse`: Explain what emulation_mode is and how it affects response results

Miscellaneous internal changes
- [11088](https://github.com/rasahq/rasa/issues/11088), [#11123](https://github.com/rasahq/rasa/issues/11123), [#9093](https://github.com/rasahq/rasa/issues/9093), [#9099](https://github.com/rasahq/rasa/issues/9099)

- [11522](https://github.com/rasahq/rasa/issues/11522)

- [11362](https://github.com/rasahq/rasa/issues/11362): Run default action `action_extract_slots` after a custom action returns a `UserUttered` event to fill any applicable slots.