26 Nov 16:04

Bugfixes

#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.

Assets 2

25 Nov 11:28

Bugfixes

#5974: ActionRestart will now trigger ActionSessionStart as a followup action.
#7317: Fixed Rasa Open Source not being able to fetch models from certain URLs.

This addresses an issue introduced in 2.0.3 where rasa-production could not use the models from rasa-x in Rasa X server mode.
#7316: SingleStateFeaturizer checks whether it was trained with RegexInterpreter as
NLU interpreter. If that is the case, RegexInterpreter is used during prediction.

Assets 2

24 Nov 11:10

Bugfixes

#7338: Sender ID is correctly set when copying the tracker and sending it to the action server (instead of sending the default value). This fixes a problem where the action server would only retrieve trackers with a sender_id default.

Assets 2

17 Nov 15:38

Deprecations and Removals

#7136: The Policy interface was changed to return a PolicyPrediction object when
predict_action_probabilities is called. Returning a list of probabilities directly
is deprecated and support for this will be removed in Rasa Open Source 3.0.

You can adapt your custom policy by wrapping your probabilities in a PolicyPrediction
object:
```
from rasa.core.policies.policy import Policy, PolicyPrediction
# ... other imports

def predict_action_probabilities(
        self,
        tracker: DialogueStateTracker,
        domain: Domain,
        interpreter: NaturalLanguageInterpreter,
        **kwargs: Any,
    ) -> PolicyPrediction:
    probabilities = ... # an action prediction of your policy
    return PolicyPrediction(probabilities, "policy_name", policy_priority=self.priority)
```
The same change was applied to the PolicyEnsemble interface. Instead of returning
a tuple of action probabilities and policy name, it is now returning a
PolicyPrediction object. Support for the old PolicyEnsemble interface will be
removed in Rasa Open Source 3.0.

:::caution
This change is model-breaking. Please retrain your models.

:::
#7263: The Pika Event Broker no longer supports
the environment variables RABBITMQ_SSL_CA_FILE and RABBITMQ_SSL_KEY_PASSWORD.
You can alternatively specify RABBITMQ_SSL_CA_FILE in the RabbitMQ connection URL as
described in the
RabbitMQ documentation.
```
event_broker:
 type: pika
 url: "amqps://user:password@host?cacertfile=path_to_ca_cert&password=private_key_password"
 queues:
 - my_queue
```
Support for RABBITMQ_SSL_KEY_PASSWORD was removed entirely.

The method Event Broker.close was changed to be asynchronous.
Support for synchronous implementations will be removed in Rasa Open Source 2.2.0.
To adapt your implementation add the async keyword:
```
from rasa.core.brokers.broker import EventBroker

class MyEventBroker(EventBroker):

    async def close(self) -> None:
        # clean up event broker resources
```

Features

#7136: Policies can now return obligatory and optional events as part of their
prediction. Obligatory events are always applied to the current conversation tracker.
Optional events are only applied to the conversation tracker in case the policy wins.

Improvements

#4341: Changed Agent.load method to support pathlib paths.
#5715: If you are using the feature Entity Roles and Groups, you should now also list the roles and groups
in your domain file if you want roles and groups to influence your conversations. For example:
```
entities:
  - city:
      roles:
        - from
        - to
  - name
  - topping:
      groups:
        - 1
        - 2
  - size:
      groups:
        - 1
        - 2
```
Entity roles and groups can now influence dialogue predictions. For more information see the section
Entity Roles and Groups influencing dialogue predictions.
#6285: Predictions of the FallbackClassifier are
ignored when
evaluating the NLU model
Note that the FallbackClassifier predictions still apply to
test stories.
#6474: Adapt the training data reader and emulator for wit.ai to their latest format.
Update the instructions in the
migrate from wit.ai documentation
to run Rasa Open Source in wit.ai emulation mode.
#6498: Adding configurable prefixes to Redis Tracker and Lock Stores so that a single Redis instance (and logical DB) can support multiple conversation trackers and locks.
By default, conversations will be prefixed with tracker:... and all locks prefixed with lock:.... Additionally, you can add an alphanumeric-only prefix: value in endpoints.yml such that keys in redis will take the form value:tracker:... and value:lock:... respectively.
#6571: Log the model's relative path when using CLI commands.
#6852: Adds the option to configure whether extracted entities should be split by comma (",") or not. The default behaviour is True - i.e. split any list of extracted entities by comma. This makes sense for a list of ingredients in a recipie, for example "avocado, tofu, cauliflower", however doesn't make sense for an address such as "Schönhauser Allee 175, 10119 Berlin, Germany".

In the latter case, add a new option to your config, e.g. if you are using the DIETClassifier this becomes:
```
...
- name: DIETClassifier
  split_entities_by_comma: False
...
```
in which case, none of the extracted entities will be split by comma. To switch it on/off for specific entity types you can use:
```
...
- name: DIETClassifier
  split_entities_by_comma: 
    address: True
    ingredient: False
...
```
where both address and ingredient are two entity types.

This feature is also available for CRFEntityExtractor.
#6860: Fetching test stories from the HTTP API endpoint
GET /conversations/<conversation_id>/story no longer triggers an update
of the
conversation session.

Added a new boolean query parameter all_sessions (default: false) to the
HTTP API endpoint for fetching test stories
(GET /conversations/<conversation_id>/story).

When setting ?all_sessions=true, the endpoint returns test stories for all
conversation sessions for conversation_id.
When setting ?all_sessions=all_sessions, or when omitting the all_sessions
parameter, a single test story is returned for conversation_id. In cases where
multiple conversation sessions exist, only the last story is returned.

Specifying the retrieve_events_from_previous_conversation_sessions
kwarg for the Tracker Store class is deprecated and will be
removed in Rasa Open Source 3.0. Please use the retrieve_full_tracker() method
instead.
#6865: Improve the rasa data convert nlg command and introduce the rasa data convert responses command
to simplify the migration from pre-2.0 response selector format to the new format.
#6966: Added warning for when an option is provided for a component that is not listed as a key in the defaults for that component.
#6977: Forms no longer reject their execution before a potential custom
action for validating / extracting slots was executed.
Forms continue to reject in two cases automatically:
- A slot was requested to be filled, but no slot mapping applied to the latest user
  message and there was no custom action for potentially extracting other slots.
- A slot was requested to be filled, but the custom action for validating / extracting
  slots didn't return any slot event.
Additionally you can also reject the form execution manually by returning a
ActionExecutionRejected event within your custom action for validating / extracting
slots.
#7027: Remove dependency between ConveRTTokenizer and ConveRTFeaturizer. The ConveRTTokenizer is now deprecated, and the
ConveRTFeaturizer can be used with any other Tokenizer.

Remove dependency between HFTransformersNLP, LanguageModelTokenizer, and LanguageModelFeaturizer. Both
HFTransformersNLP and LanguageModelTokenizer are now deprecated. LanguageModelFeaturizer implements the behavior
of the stack and can be used with any other Tokenizer.
#7061: Gray out "Download" button in Rasa Playground when the project is not yet ready to be downloaded.
#7068: Slot mappings for Forms in the domain are now optional. If you do not
provide any slot mappings as part of the domain, you need to provide
custom slot mappings through a custom action.
A form without slot mappings is specified as follows:
```
forms:
  my_form:
    # no mappings
```
The action for forms can now be overridden by defining a custom action
with the same name as the form. This can be used to keep using the deprecated
Rasa Open Source FormAction which is implemented within the Rasa SDK. Note that it is
not recommended to override the form action for anything else than using the
deprecated Rasa SDK FormAction.
#7102: Changed the default model weights loaded for HFTransformersNLP component.

Use a language agnostic sentence embedding model
as the default model. These model weights should help improve performance on
intent classification and res...

Assets 2

12 Nov 16:32

Merge pull request #7264 from RasaHQ/prepare-release-1.10.17

Bugfixes

#7219: Prevent the message handling process in PikaEventBroker from being terminated.

Assets 2

10 Nov 19:20

2.0.6: micro release with bug fixes for multiple workers and for TwoStageFal…

Bugfixes

#6629: Fixed a bug that occurred when setting multiple Sanic workers in combination with a custom Lock Store. Previously, if the number was set higher than 1 and you were using a custom lock store, it would reject because of a strict check to use a Redis Lock Store.
#7176: Fixed a bug in the TwoStageFallback action which
reverted too many events after the user successfully rephrased.

Assets 2

10 Nov 13:44

Bugfixes

#7200: Fix a bug because of which only one retrieval intent was present in all_retrieval_intent key of the output of ResponseSelector even if there were multiple retrieval intents present in the training data.

Assets 2

08 Nov 19:07

Bugfixes

#7140: Fixed error when starting Rasa X locally without a proper git setup.
#7186: Properly validate incoming webhook requests for the Slack connector to be authentic.

Assets 2

29 Oct 22:13

Bugfixes

#7089: Fix ConveRTTokenizer failing because of wrong model URL by making the model_url parameter of ConveRTTokenizer mandatory.

Since the ConveRT model was taken offline, we can no longer use
the earlier public URL of the model. Additionally, since the licence for the model is unknown,
we cannot host it ourselves. Users can still use the component by setting model_url to a community/self-hosted
model URL or path to a local directory containing model files. For example:
```
pipeline:
    - name: ConveRTTokenizer
      model_url: <remote/local path to model>
```
#7108: Update example formbot to use FormValidationAction for slot validation

Assets 2

22 Oct 16:45

Bugfixes

#6691: Fix description of previous event in output of rasa data validate stories
#7053: Fixed command line coloring for windows command lines running an encoding other than utf-8.

Miscellaneous internal changes

#7057

Assets 2