Rasa

- [11333](https://github.com/rasahq/rasa/issues/11333): `SlotSet` events will be emitted when the value set by the current user turn is the same as the existing value.

Previously, `ActionExtractSlots` would not emit any `SlotSet` events if the new value was the same as the existing
one. This caused the augmented memoization policy to lose these slot values when truncating the tracker.

* Upgrade dependent libraries with security vulnerabilities (Pillow, TensorFlow, ujson)

- [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.
- [11197](https://github.com/rasahq/rasa/issues/11197): Backports fix for 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.

- [11156](https://github.com/rasahq/rasa/issues/11156), [#11173](https://github.com/rasahq/rasa/issues/11173)

- [10480](https://github.com/rasahq/rasa/issues/10480): Remove warning for Rasa X localmode not being supported when the `--production` flag is present.
- [10908](https://github.com/rasahq/rasa/issues/10908): Pin requirement for `scipy<1.8.0` since `scipy>=1.8.0` is not backward compatible with `scipy<1.8.0` and additionally requires Python>=3.8, while Rasa supports Python 3.7 as well.
- [11149](https://github.com/rasahq/rasa/issues/11149): Fix the extraction of values for slots with mapping conditions from trigger intents that activate a form, which was possible in `2.x`.

- [10203](https://github.com/rasahq/rasa/issues/10203): Add configuration options (via env variables) for library logging.
- [10473](https://github.com/rasahq/rasa/issues/10473): Support other recipe types.

This pull request also adds support for graph recipes, see details at
https://rasa.com/docs/rasa/model-configuration and check Graph Recipe page.

Graph recipe is a raw format for specifying executed graph directly. This is
useful if you need a more powerful way to specify your model creation.
- [10545](https://github.com/rasahq/rasa/issues/10545): Added optional `ssl_keyfile`, `ssl_certfile`, and `ssl_ca_certs` parameters to the Redis tracker store.
- [10650](https://github.com/rasahq/rasa/issues/10650): Added `LogisticRegressionClassifier` to the NLU classifiers.

This model is lightweight and might help in early prototyping. The training times typically decrease substantially, but the accuracy might be a bit lower too.
- [8762](https://github.com/rasahq/rasa/issues/8762): Added support for Python 3.9.

Improvements
- [10378](https://github.com/rasahq/rasa/issues/10378): Bump TensorFlow version to 2.7.

:::caution
We can't guarantee the exact same output and hence model performance if your
configuration uses `LanguageModelFeaturizer`. This applies to the case where the
model is re-trained with the new rasa open source version without changing the
configuration, random seeds, and data as well as to the case where a model trained with
a previous version of rasa open source is loaded with this new version for inference.

We suggest training a new model if you are upgrading to this version of Rasa Open Source.
- [10444](https://github.com/rasahq/rasa/issues/10444): Make `rasa data validate` check for duplicated intents, forms, responses
and slots when using domains split between multiple files.
- [10899](https://github.com/rasahq/rasa/issues/10899): Add an `influence_conversation` flag to entites to provide a shorthand for ignoring an entity for all intents.
- [9789](https://github.com/rasahq/rasa/issues/9789): Add `--request-timeout` command line argument to `rasa shell`, allowing users to configure the time a request can take before it's terminated.

Bugfixes
- [10376](https://github.com/rasahq/rasa/issues/10376): Validate regular expressions in nlu training data configuration.
- [10409](https://github.com/rasahq/rasa/issues/10409): Unset the default values for `num_threads` and `finetuning_epoch_fraction` to `None` in order
to fix cases when CLI defaults override the data from config.
- [10447](https://github.com/rasahq/rasa/issues/10447): Update `rasa data validate` to not fail when `active_loop` is `null`
- [10570](https://github.com/rasahq/rasa/issues/10570): Fixes Domain loading when domain config uses multiple yml files.

Previously not all configures attributes were necessarily known when merging Domains, and in the case of `entities` were not being properly assigned to `intents`.
- [10606](https://github.com/rasahq/rasa/issues/10606): Fix `max_history` truncation in `AugmentedMemoizationPolicy` to preserve the most recent `UserUttered` event.
Previously, `AugmentedMemoizationPolicy` failed to predict next action after long sequences of actions (longer than `max_history`) because the policy did not have access to the most recent user message.
- [10634](https://github.com/rasahq/rasa/issues/10634): Add `RASA_ENVIRONMENT` header in Kafka only if the environmental variable is set.
- [10767](https://github.com/rasahq/rasa/issues/10767): Merge domain entities as lists of dicts, not lists of lists to support entity roles and groups across multiple domains.
- [9351](https://github.com/rasahq/rasa/issues/9351): Add an option to specify `--domain` for `rasa test nlu` CLI command.

Improved Documentation
- [10553](https://github.com/rasahq/rasa/issues/10553): Fixed an over-indent in the Tokenizers section of the Components page of the docs.

Miscellaneous internal changes
- [10143](https://github.com/rasahq/rasa/issues/10143), [#10507](https://github.com/rasahq/rasa/issues/10507), [#10568](https://github.com/rasahq/rasa/issues/10568), [#10601](https://github.com/rasahq/rasa/issues/10601), [#10658](https://github.com/rasahq/rasa/issues/10658), [#10746](https://github.com/rasahq/rasa/issues/10746), [#10807](https://github.com/rasahq/rasa/issues/10807), [#9094](https://github.com/rasahq/rasa/issues/9094), [#9096](https://github.com/rasahq/rasa/issues/9096), [#9097](https://github.com/rasahq/rasa/issues/9097), [#9098](https://github.com/rasahq/rasa/issues/9098)