Rasa

Improvements
============

- [\6251](https://github.com/rasahq/rasa/issues/6251): Kafka Producer connection now remains active across sends. Added support for group and client id.
The Kafka producer also adds support for the PLAINTEXT and SASL\_SSL protocols.

DynamoDB table exists check fixed bug when more than 100 tables exist.
- [\6814](https://github.com/rasahq/rasa/issues/6814): Replace use of `python-telegram-bot` package with `pyTelegramBotAPI`
- [\7423](https://github.com/rasahq/rasa/issues/7423): Use response selector keys (sub-intents) as labels for plotting the confusion matrix during NLU evaluation to improve readability.

Bugfixes
========

- [\7340](https://github.com/rasahq/rasa/issues/7340): Fixed an issues with the DynamoDB TrackerStore creating a new table entry/object for each TrackerStore update. The column session\_date has been deprecated and should be removed manually in existing DynamoDB tables.

Bugfixes
========

- [\7219](https://github.com/rasahq/rasa/issues/7219): Prevent the message handling process in `PikaEventBroker` from being terminated.

Bugfixes
========

- [\6703](https://github.com/rasahq/rasa/issues/6703): Update Pika event broker to be a separate process and make it use a
`multiprocessing.Queue` to send and process messages. This change should help
avoid situations when events stop being sent after a while.

Improvements
============

- [\6900](https://github.com/rasahq/rasa/issues/6900): Debug logs from `matplotlib` libraries are now hidden by default and are configurable with the `LOG_LEVEL_LIBRARIES` environment variable.

Bugfixes
========

- [\3597](https://github.com/rasahq/rasa/issues/3597): Fixed issue where temporary model directories were not removed after pulling from a model server. If the model pulled from the server was invalid, this could lead to large amounts of local storage usage.
- [\6755](https://github.com/rasahq/rasa/issues/6755): Treat the length of OOV token as 1 to fix token align issue when OOV occurred.
- [\6899](https://github.com/rasahq/rasa/issues/6899): Fixed `MappingPolicy` not predicting `action_listen` after the mapped action while running `rasa test`.

Bugfixes
========

- [\6741](https://github.com/rasahq/rasa/issues/6741): Fixed the remote URL of ConveRT model as it was recently updated by its authors.

Also made the remote URL configurable at runtime in the corresponding tokenizer's and featurizer's configuration.