Rasa

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

- [\4606](https://github.com/rasahq/rasa/issues/4606): The stream reading timeout for `` rasa shell` is now configurable by using the environment variable ``RASA\_SHELL\_STREAM\_READING\_TIMEOUT\_IN\_SECONDS`. This can help to fix problems when using`rasa shell\`\` with custom actions which run
10 seconds or longer.

Bugfixes
========

- [\5709](https://github.com/rasahq/rasa/issues/5709): Reverted changes in 1.9.6 that led to model incompatibility. Upgrade to 1.9.7 to fix
`self.sequence_lengths_for(tf_batch_data[TEXT_SEQ_LENGTH][0]) IndexError: list index out of range`
error without needing to retrain earlier 1.9 models.

Therefore, all 1.9 models except for 1.9.6 will be compatible; a model trained on 1.9.6 will need
to be retrained on 1.9.7.

Miscellaneous internal changes
==============================

- \5631

Bugfixes
========

- [\5426](https://github.com/rasahq/rasa/issues/5426): Fix rasa test nlu plotting when using multiple runs.
- [\5489](https://github.com/rasahq/rasa/issues/5489): Fixed issue where `max_number_of_predictions` was not considered when running end-to-end testing.

Miscellaneous internal changes
==============================

- \5626

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

- [\5533](https://github.com/rasahq/rasa/issues/5533): Support for
[PostgreSQL schemas](https://www.postgresql.org/docs/11/ddl-schemas.html) in
sql-tracker-store. The `SQLTrackerStore`
accesses schemas defined by the `POSTGRESQL_SCHEMA` environment variable if
connected to a PostgreSQL database.

The schema is added to the connection string option's `-csearch_path` key, e.g.
`-options=-csearch_path=<SCHEMA_NAME>` (see
<https://www.postgresql.org/docs/11/contrib-dblink-connect.html> for more details).
As before, if no `POSTGRESQL_SCHEMA` is defined, Rasa uses the database's default
schema (`public`).

The schema has to exist in the database before connecting, i.e. it needs to have been
created with

{.sourceCode .postgresql}
CREATE SCHEMA schema_name;


Bugfixes
========

- [\5547](https://github.com/rasahq/rasa/issues/5547): Fixed ambiguous logging in `DIETClassifier` by adding the name of the calling class to the log message.

Bugfixes
========

- [\5529](https://github.com/rasahq/rasa/issues/5529): Fix memory leak problem on increasing number of calls to `/model/parse` endpoint.