# Rasa OSS Change Log [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#rasa-oss-change-log "Permalink to this headline")

All notable changes to this project will be documented in this file.
This project adheres to [Semantic Versioning](http://semver.org/) starting with version 1.0.

## \[1.5.3\] - 2019-12-11 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id1 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#improvements "Permalink to this headline")

- [#4933](https://github.com/rasahq/rasa/issues/4933): Improved error message that appears when an incorrect parameter is passed to a policy.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#bugfixes "Permalink to this headline")

- [#4914](https://github.com/rasahq/rasa/issues/4914): Added `rasa/nlu/schemas/config.yml` to wheel package

- [#4942](https://github.com/rasahq/rasa/issues/4942): Pin `multidict` dependency to 4.6.1 to prevent sanic from breaking,
see [https://github.com/huge-success/sanic/issues/1729](https://github.com/huge-success/sanic/issues/1729)

## \[1.5.2\] - 2019-12-09 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id5 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id6 "Permalink to this headline")

- [#3684](https://github.com/rasahq/rasa/issues/3684): `rasa interactive` will skip the story visualization of training stories in case
there are more than 200 stories. Stories created during interactive learning will be
visualized as before.

- [#4792](https://github.com/rasahq/rasa/issues/4792): The log level for SocketIO loggers, including `websockets.protocol`, `engineio.server`,
and `socketio.server`, is now handled by the `LOG_LEVEL_LIBRARIES` environment variable,
where the default log level is `ERROR`.

- [#4873](https://github.com/rasahq/rasa/issues/4873): Updated all example bots and documentation to use the updated `dispatcher.utter_message()` method from rasa-sdk==1.5.0.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id10 "Permalink to this headline")

- [#3684](https://github.com/rasahq/rasa/issues/3684): `rasa interactive` will not load training stories in case the visualization is
skipped.

- [#4789](https://github.com/rasahq/rasa/issues/4789): Fixed error where spacy models where not found in the docker images.

- [#4802](https://github.com/rasahq/rasa/issues/4802): Fixed unnecessary `kwargs` unpacking in `rasa.test.test_core` call in `rasa.test.test` function.

- [#4898](https://github.com/rasahq/rasa/issues/4898): Training data files now get loaded in the same order (especially relevant to subdirectories) each time to ensure training consistency when using a random seed.

- [#4918](https://github.com/rasahq/rasa/issues/4918): Locks for tickets in `LockStore` are immediately issued without a redundant
check for their availability.

### Improved Documentation [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#improved-documentation "Permalink to this headline")

- [#4844](https://github.com/rasahq/rasa/issues/4844): Added `towncrier` to automatically collect changelog entries.

- [#4869](https://github.com/rasahq/rasa/issues/4869): Document the pipeline for `pretrained_embeddings_convert` in the pre-configured pipelines section.

- [#4894](https://github.com/rasahq/rasa/issues/4894): `Proactively Reaching Out to the User Using Actions` now correctly links to the
endpoint specification.

## \[1.5.1\] - 2019-11-27 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id19 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id20 "Permalink to this headline")

- When NLU training data is dumped as Markdown file the intents are not longer ordered
alphabetically, but in the original order of given training data

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id21 "Permalink to this headline")

- End to end stories now support literal payloads which specify entities, e.g.
`greet: /greet{"name": "John"}`

- Slots will be correctly interpolated if there are lists in custom response templates.

- Fixed compatibility issues with `rasa-sdk``1.5`

## \[1.5.0\] - 2019-11-26 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id22 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#features "Permalink to this headline")

- Added data validator that checks if domain object returned is empty. If so, exit early
from the command `rasa data validate`.

- Added the KeywordIntentClassifier.

- Added documentation for `AugmentedMemoizationPolicy`.

- Fall back to `InMemoryTrackerStore` in case there is any problem with the current
tracker store.

- Arbitrary metadata can now be attached to any `Event` subclass. The data must be
stored under the `metadata` key when reading the event from a JSON object or
dictionary.

- Add command line argument `rasa x --config CONFIG`, to specify path to the policy
and NLU pipeline configuration of your bot (default: `config.yml`).

- Added a new NLU featurizer - `ConveRTFeaturizer` based on [ConveRT](https://github.com/PolyAI-LDN/polyai-models) model released by PolyAI.

- Added a new preconfigured pipeline - `pretrained_embeddings_convert`.

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id23 "Permalink to this headline")

- Do not retrain the entire Core model if only the `templates` section of the domain
is changed.

- Upgraded `jsonschema` version.

- Updated `/status` endpoint to show correct path to model archive

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#deprecations-and-removals "Permalink to this headline")

- Remove duplicate messages when creating training data (issues/1446).

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id24 "Permalink to this headline")

- `MultiProjectImporter` now imports files in the order of the import statements

- Fixed server hanging forever on leaving `rasa shell` before first message

- Fixed rasa init showing traceback error when user does Keyboard Interrupt before choosing a project path

- `CountVectorsFeaturizer` featurizes intents only if its analyzer is set to `word`

- Fixed bug where facebooks generic template was not rendered when buttons were `None`

- Fixed default intents unnecessarily raising undefined parsing error

## \[1.4.6\] - 2019-11-22 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id25 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id26 "Permalink to this headline")

- Fixed Rasa X not working when any tracker store was configured for Rasa.

- Use the matplotlib backend `agg` in case the `tkinter` package is not installed.

## \[1.4.5\] - 2019-11-14 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id27 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id28 "Permalink to this headline")

- NLU-only models no longer throw warnings about parsing features not defined in the domain

- Fixed bug that stopped Dockerfiles from building version 1.4.4.

- Fixed format guessing for e2e stories with intent restated as `/intent`

## \[1.4.4\] - 2019-11-13 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id29 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id30 "Permalink to this headline")

- `PikaEventProducer` adds the RabbitMQ `App ID` message property to published
messages with the value of the `RASA_ENVIRONMENT` environment variable. The
message property will not be assigned if this environment variable isn’t set.

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id31 "Permalink to this headline")

- Updated Mattermost connector documentation to be more clear.

- Updated format strings to f-strings where appropriate.

- Updated tensorflow requirement to `1.15.0`

- Dump domain using UTF-8 (to avoid `\UXXXX` sequences in the dumped files)

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id32 "Permalink to this headline")

- Fixed exporting NLU training data in `json` format from `rasa interactive`

- Fixed numpy deprecation warnings

## \[1.4.3\] - 2019-10-29 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id33 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id34 "Permalink to this headline")

- Fixed `Connection reset by peer` errors and bot response delays when using the
RabbitMQ event broker.

## \[1.4.2\] - 2019-10-28 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id35 "Permalink to this headline")

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id36 "Permalink to this headline")

- TensorFlow deprecation warnings are no longer shown when running `rasa x`

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id37 "Permalink to this headline")

- Fixed `'Namespace' object has no attribute 'persist_nlu_data'` error during
interactive learning

- Pinned networkx~=2.3.0 to fix visualization in rasa interactive and Rasa X

- Fixed `No model found` error when using `rasa run actions` with “actions”
as a directory.

## \[1.4.1\] - 2019-10-22 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id38 "Permalink to this headline")

Regression: changes from `1.2.12` were missing from `1.4.0`, readded them

## \[1.4.0\] - 2019-10-19 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id39 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id40 "Permalink to this headline")

- add flag to CLI to persist NLU training data if needed

- log a warning if the `Interpreter` picks up an intent or an entity that does not
exist in the domain file.

- added `DynamoTrackerStore` to support persistence of agents running on AWS

- added docstrings for `TrackerStore` classes

- added buttons and images to mattermost.

- `CRFEntityExtractor` updated to accept arbitrary token-level features like word
vectors (issues/4214)

- `SpacyFeaturizer` updated to add `ner_features` for `CRFEntityExtractor`

- Sanitizing incoming messages from slack to remove slack formatting like < [mailto:xyz@rasa](mailto:xyz%40rasa).com\|xyz@rasa.com>
or < [http://url](http://url/).com\|url.com> and substitute it with original content

- Added the ability to configure the number of Sanic worker processes in the HTTP
server (`rasa.server`) and input channel server
(`rasa.core.agent.handle_channels()`). The number of workers can be set using the
environment variable `SANIC_WORKERS` (default: 1). A value of >1 is allowed only in
combination with `RedisLockStore` as the lock store.

- Botframework channel can handle uploaded files in `UserMessage` metadata.

- Added data validator that checks there is no duplicated example data across multiples intents

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id41 "Permalink to this headline")

- Unknown sections in markdown format (NLU data) are not ignored anymore, but instead an error is raised.

- It is now easier to add metadata to a `UserMessage` in existing channels.
You can do so by overwriting the method `get_metadata`. The return value of this
method will be passed to the `UserMessage` object.

- Tests can now be run in parallel

- Serialise `DialogueStateTracker` as json instead of pickle. **DEPRECATION warning**:
Deserialisation of pickled trackers will be deprecated in version 2.0. For now,
trackers are still loaded from pickle but will be dumped as json in any subsequent
save operations.

- Event brokers are now also passed to custom tracker stores (using the `event_broker` parameter)

- Don’t run the Rasa Docker image as `root`.

- Use multi-stage builds to reduce the size of the Rasa Docker image.

- Updated the `/status` api route to use the actual model file location instead of the `tmp` location.

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id42 "Permalink to this headline")

- **Removed Python 3.5 support**

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id43 "Permalink to this headline")

- fixed missing `tkinter` dependency for running tests on Ubuntu

- fixed issue with `conversation` JSON serialization

- fixed the hanging HTTP call with `ner_duckling_http` pipeline

- fixed Interactive Learning intent payload messages saving in nlu files

- fixed DucklingHTTPExtractor dimensions by actually applying to the request

## \[1.3.10\] - 2019-10-18 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id44 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id45 "Permalink to this headline")

- Can now pass a package as an argument to the `--actions` parameter of the
`rasa run actions` command.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id46 "Permalink to this headline")

- Fixed visualization of stories with entities which led to a failing
visualization in Rasa X

## \[1.3.9\] - 2019-10-10 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id47 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id48 "Permalink to this headline")

- Port of 1.2.10 (support for RabbitMQ TLS authentication and `port` key in
event broker endpoint config).

- Port of 1.2.11 (support for passing a CA file for SSL certificate verification via the
–ssl-ca-file flag).

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id49 "Permalink to this headline")

- Fixed the hanging HTTP call with `ner_duckling_http` pipeline.

- Fixed text processing of `intent` attribute inside `CountVectorFeaturizer`.

- Fixed `argument of type 'NoneType' is not iterable` when using `rasa shell`,
`rasa interactive` / `rasa run`

## \[1.3.8\] - 2019-10-08 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id50 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id51 "Permalink to this headline")

- Policies now only get imported if they are actually used. This removes
TensorFlow warnings when starting Rasa X

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id52 "Permalink to this headline")

- Fixed error `Object of type 'MaxHistoryTrackerFeaturizer' is not JSON serializable`
when running `rasa train core`

- Default channel `send_` methods no longer support kwargs as they caused issues in incompatible channels

## \[1.3.7\] - 2019-09-27 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id53 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id54 "Permalink to this headline")

- re-added TLS, SRV dependencies for PyMongo

- socketio can now be run without turning on the `--enable-api` flag

- MappingPolicy no longer fails when the latest action doesn’t have a policy

## \[1.3.6\] - 2019-09-21 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id55 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id56 "Permalink to this headline")

- Added the ability for users to specify a conversation id to send a message to when
using the `RasaChat` input channel.

## \[1.3.5\] - 2019-09-20 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id57 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id58 "Permalink to this headline")

- Fixed issue where `rasa init` would fail without spaCy being installed

## \[1.3.4\] - 2019-09-20 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id59 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id60 "Permalink to this headline")

- Added the ability to set the `backlog` parameter in Sanics `run()` method using
the `SANIC_BACKLOG` environment variable. This parameter sets the
number of unaccepted connections the server allows before refusing new
connections. A default value of 100 is used if the variable is not set.

- Status endpoint (`/status`) now also returns the number of training processes currently running

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id61 "Permalink to this headline")

- Added the ability to properly deal with spaCy `Doc`-objects created on
empty strings as discussed [here](https://github.com/RasaHQ/rasa/issues/4445).
Only training samples that actually bear content are sent to `self.nlp.pipe`
for every given attribute. Non-content-bearing samples are converted to empty
`Doc`-objects. The resulting lists are merged with their preserved order and
properly returned.

- asyncio warnings are now only printed if the callback takes more than 100ms
(up from 1ms).

- `agent.load_model_from_server` no longer affects logging.

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id62 "Permalink to this headline")

- The endpoint `POST /model/train` no longer supports specifying an output directory
for the trained model using the field `out`. Instead you can choose whether you
want to save the trained model in the default model directory (`models`)
(default behavior) or in a temporary directory by specifying the
`save_to_default_model_directory` field in the training request.

## \[1.3.3\] - 2019-09-13 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id63 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id64 "Permalink to this headline")

- Added a check to avoid training `CountVectorizer` for a particular
attribute of a message if no text is provided for that attribute across
the training data.

- Default one-hot representation for label featurization inside `EmbeddingIntentClassifier` if label features don’t exist.

- Policy ensemble no longer incorrectly wrings “missing mapping policy” when
mapping policy is present.

- “text” from `utter_custom_json` now correctly saved to tracker when using telegram channel

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id65 "Permalink to this headline")

- Removed computation of `intent_spacy_doc`. As a result, none of the spacy components process intents now.

## \[1.3.2\] - 2019-09-10 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id66 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id67 "Permalink to this headline")

- SQL tracker events are retrieved ordered by timestamps. This fixes interactive
learning events being shown in the wrong order.

## \[1.3.1\] - 2019-09-09 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id68 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id69 "Permalink to this headline")

- Pin gast to == 0.2.2

## \[1.3.0\] - 2019-09-05 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id70 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id71 "Permalink to this headline")

- Added option to persist nlu training data (default: False)

- option to save stories in e2e format for interactive learning

- bot messages contain the `timestamp` of the `BotUttered` event, which can be used in channels

- `FallbackPolicy` can now be configured to trigger when the difference between confidences of two predicted intents is too narrow

- experimental training data importer which supports training with data of multiple
sub bots. Please see the
[docs](/content/docs/rasa/api/training-data-importers/index.html) for more
information.

- throw error during training when triggers are defined in the domain without
`MappingPolicy` being present in the policy ensemble

- The tracker is now available within the interpreter’s `parse` method, giving the
ability to create interpreter classes that use the tracker state (eg. slot values)
during the parsing of the message. More details on motivation of this change see
issues/3015.

- add example bot `knowledgebasebot` to showcase the usage of `ActionQueryKnowledgeBase`

- `softmax` starspace loss for both `EmbeddingPolicy` and `EmbeddingIntentClassifier`

- `balanced` batching strategy for both `EmbeddingPolicy` and `EmbeddingIntentClassifier`

- `max_history` parameter for `EmbeddingPolicy`

- Successful predictions of the NER are written to a file if `--successes` is set when running `rasa test nlu`

- Incorrect predictions of the NER are written to a file by default. You can disable it via `--no-errors`.

- New NLU component `ResponseSelector` added for the task of response selection

- Message data attribute can contain two more keys - `response_key`, `response` depending on the training data

- New action type implemented by `ActionRetrieveResponse` class and identified with `response_` prefix

- Vocabulary sharing inside `CountVectorsFeaturizer` with `use_shared_vocab` flag. If set to True, vocabulary of corpus is shared between text, intent and response attributes of message

- Added an option to share the hidden layer weights of text input and label input inside `EmbeddingIntentClassifier` using the flag `share_hidden_layers`

- New type of training data file in NLU which stores response phrases for response selection task.

- Add flag `intent_split_symbol` and `intent_tokenization_flag` to all `WhitespaceTokenizer`, `JiebaTokenizer` and `SpacyTokenizer`

- Added evaluation for response selector. Creates a report `response_selection_report.json` inside `--out` directory.

- argument `--config-endpoint` to specify the URL from which `rasa x` pulls
the runtime configuration (endpoints and credentials)

- `LockStore` class storing instances of `TicketLock` for every `conversation_id`

- environment variables `SQL_POOL_SIZE` (default: 50) and `SQL_MAX_OVERFLOW`
(default: 100) can be set to control the pool size and maximum pool overflow for
`SQLTrackerStore` when used with the `postgresql` dialect

- Add a bot\_challenge intent and a utter\_iamabot action to all example projects and the rasa init bot.

- Allow sending attachments when using the socketio channel

- `rasa data validate` will fail with a non-zero exit code if validation fails

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id72 "Permalink to this headline")

- added character-level `CountVectorsFeaturizer` with empirically found parameters
into the `supervised_embeddings` NLU pipeline template

- NLU evaluations now also stores its output in the output directory like the core evaluation

- show warning in case a default path is used instead of a provided, invalid path

- compare mode of `rasa train core` allows the whole core config comparison,
naming style of models trained for comparison is changed (this is a breaking change)

- pika keeps a single connection open, instead of open and closing on each incoming event

- `RasaChatInput` fetches the public key from the Rasa X API. The key is used to
decode the bearer token containing the conversation ID. This requires
`rasa-x>=0.20.2`.

- more specific exception message when loading custom components depending on whether component’s path or
class name is invalid or can’t be found in the global namespace

- change priorities so that the `MemoizationPolicy` has higher priority than the `MappingPolicy`

- substitute LSTM with Transformer in `EmbeddingPolicy`

- `EmbeddingPolicy` can now use `MaxHistoryTrackerFeaturizer`

- non zero `evaluate_on_num_examples` in `EmbeddingPolicy`
and `EmbeddingIntentClassifier` is the size of
hold out validation set that is excluded from training data

- defaults parameters and architectures for both `EmbeddingPolicy` and
`EmbeddingIntentClassifier` are changed (this is a breaking change)

- evaluation of NER does not include ‘no-entity’ anymore

- `--successes` for `rasa test nlu` is now boolean values. If set incorrect/successful predictions
are saved in a file.

- `--errors` is renamed to `--no-errors` and is now a boolean value. By default incorrect predictions are saved
in a file. If `--no-errors` is set predictions are not written to a file.

- Remove `label_tokenization_flag` and `label_split_symbol` from `EmbeddingIntentClassifier`. Instead move these parameters to `Tokenizers`.

- Process features of all attributes of a message, i.e. - text, intent and response inside the respective component itself. For e.g. - intent of a message is now tokenized inside the tokenizer itself.

- Deprecate `as_markdown` and `as_json` in favour of `nlu_as_markdown` and `nlu_as_json` respectively.

- pin python-engineio >= 3.9.3

- update python-socketio req to >= 4.3.1

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id73 "Permalink to this headline")

- `rasa test nlu` with a folder of configuration files

- `MappingPolicy` standard featurizer is set to `None`

- Removed `text` parameter from send\_attachment function in slack.py to avoid duplication of text output to slackbot

- server `/status` endpoint reports status when an NLU-only model is loaded

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id74 "Permalink to this headline")

- Removed `--report` argument from `rasa test nlu`. All output files are stored in the `--out` directory.

## \[1.2.12\] - 2019-10-16 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id75 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id76 "Permalink to this headline")

- Support for transit encryption with Redis via `use_ssl: True` in the tracker store config in endpoints.yml

## \[1.2.11\] - 2019-10-09 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id77 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id78 "Permalink to this headline")

- Support for passing a CA file for SSL certificate verification via the
–ssl-ca-file flag

## \[1.2.10\] - 2019-10-08 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id79 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id80 "Permalink to this headline")

- Added support for RabbitMQ TLS authentication. The following environment variables
need to be set:
`RABBITMQ_SSL_CLIENT_CERTIFICATE` \- path to the SSL client certificate (required)
`RABBITMQ_SSL_CLIENT_KEY` \- path to the SSL client key (required)
`RABBITMQ_SSL_CA_FILE` \- path to the SSL CA file (optional, for certificate
verification)
`RABBITMQ_SSL_KEY_PASSWORD` \- SSL private key password (optional)

- Added ability to define the RabbitMQ port using the `port` key in the
`event_broker` endpoint config.

## \[1.2.9\] - 2019-09-17 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id81 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id82 "Permalink to this headline")

- Correctly pass SSL flag values to x CLI command (backport of

## \[1.2.8\] - 2019-09-10 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id83 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id84 "Permalink to this headline")

- SQL tracker events are retrieved ordered by timestamps. This fixes interactive
learning events being shown in the wrong order. Backport of `1.3.2` patch
(PR #4427).

## \[1.2.7\] - 2019-09-02 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id85 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id86 "Permalink to this headline")

- Added `query` dictionary argument to `SQLTrackerStore` which will be appended
to the SQL connection URL as query parameters.

## \[1.2.6\] - 2019-09-02 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id87 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id88 "Permalink to this headline")

- fixed bug that occurred when sending template `elements` through a channel that doesn’t support them

## \[1.2.5\] - 2019-08-26 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id89 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id90 "Permalink to this headline")

- SSL support for `rasa run` command. Certificate can be specified using
`--ssl-certificate` and `--ssl-keyfile`.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id91 "Permalink to this headline")

- made default augmentation value consistent across repo

- `'/restart'` will now also restart the bot if the tracker is paused

## \[1.2.4\] - 2019-08-23 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id92 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id93 "Permalink to this headline")

- the `SocketIO` input channel now allows accesses from other origins
(fixes `SocketIO` channel on Rasa X)

## \[1.2.3\] - 2019-08-15 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id94 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id95 "Permalink to this headline")

- messages with multiple entities are now handled properly with e2e evaluation

- `data/test_evaluations/end_to_end_story.md` was re-written in the
restaurantbot domain

## \[1.2.3\] - 2019-08-15 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id96 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id97 "Permalink to this headline")

- messages with multiple entities are now handled properly with e2e evaluation

- `data/test_evaluations/end_to_end_story.md` was re-written in the restaurantbot domain

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id98 "Permalink to this headline")

- Free text input was not allowed in the Rasa shell when the response template
contained buttons, which has now been fixed.

## \[1.2.2\] - 2019-08-07 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id99 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id100 "Permalink to this headline")

- `UserUttered` events always got the same timestamp

## \[1.2.1\] - 2019-08-06 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id101 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id102 "Permalink to this headline")

- Docs now have an `EDIT THIS PAGE` button

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id103 "Permalink to this headline")

- `Flood control exceeded` error in Telegram connector which happened because the
webhook was set twice

## \[1.2.0\] - 2019-08-01 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id104 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id105 "Permalink to this headline")

- add root route to server started without `--enable-api` parameter

- add `--evaluate-model-directory` to `rasa test core` to evaluate models
from `rasa train core -c <config-1> <config-2>`

- option to send messages to the user by calling
`POST /conversations/{conversation_id}/execute`

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id106 "Permalink to this headline")

- `Agent.update_model()` and `Agent.handle_message()` now work without needing to set a domain
or a policy ensemble

- Update pytype to `2019.7.11`

- new event broker class: `SQLProducer`. This event broker is now used when running locally with
Rasa X

- API requests are not longer logged to `rasa_core.log` by default in order to avoid
problems when running on OpenShift (use `--log-file rasa_core.log` to retain the
old behavior)

- `metadata` attribute added to `UserMessage`

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id107 "Permalink to this headline")

- `rasa test core` can handle compressed model files

- rasa can handle story files containing multi line comments

- template will retain { if escaped with {. e.g. {{“foo”: {bar}}} will result in {“foo”: “replaced value”}

## \[1.1.8\] - 2019-07-25 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id108 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id109 "Permalink to this headline")

- `TrainingFileImporter` interface to support customizing the process of loading
training data

- fill slots for custom templates

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id110 "Permalink to this headline")

- `Agent.update_model()` and `Agent.handle_message()` now work without needing to set a domain
or a policy ensemble

- update pytype to `2019.7.11`

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id111 "Permalink to this headline")

- interactive learning bug where reverted user utterances were dumped to training data

- added timeout to terminal input channel to avoid freezing input in case of server
errors

- fill slots for image, buttons, quick\_replies and attachments in templates

- `rasa train core` in comparison mode stores the model files compressed (`tar.gz` files)

- slot setting in interactive learning with the TwoStageFallbackPolicy

## \[1.1.7\] - 2019-07-18 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id112 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id113 "Permalink to this headline")

- added optional pymongo dependencies `[tls, srv]` to `requirements.txt` for better mongodb support

- `case_sensitive` option added to `WhiteSpaceTokenizer` with `true` as default.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id114 "Permalink to this headline")

- validation no longer throws an error during interactive learning

- fixed wrong cleaning of `use_entities` in case it was a list and not `True`

- updated the server endpoint `/model/parse` to handle also messages with the intent prefix

- fixed bug where “No model found” message appeared after successfully running the bot

- debug logs now print to `rasa_core.log` when running `rasa x -vv` or `rasa run -vv`

## \[1.1.6\] - 2019-07-12 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id115 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id116 "Permalink to this headline")

- rest channel supports setting a message’s input\_channel through a field
`input_channel` in the request body

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id117 "Permalink to this headline")

- recommended syntax for empty `use_entities` and `ignore_entities` in the domain file
has been updated from `False` or `None` to an empty list (`[]`)

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id118 "Permalink to this headline")

- `rasa run` without `--enable-api` does not require a local model anymore

- using `rasa run` with `--enable-api` to run a server now prints
“running Rasa server” instead of “running Rasa Core server”

- actions, intents, and utterances created in `rasa interactive` can no longer be empty

## \[1.1.5\] - 2019-07-10 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id119 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id120 "Permalink to this headline")

- debug logging now tells you which tracker store is connected

- the response of `/model/train` now includes a response header for the trained model filename

- `Validator` class to help developing by checking if the files have any errors

- project’s code is now linted using flake8

- `info` log when credentials were provided for multiple channels and channel in
`--connector` argument was specified at the same time

- validate export paths in interactive learning

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id121 "Permalink to this headline")

- deprecate ```rasa.core.agent.handle_channels(...)`. Please use ``rasa.run(...)```
or `rasa.core.run.configure_app` instead.

- `Agent.load()` also accepts `tar.gz` model file

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id122 "Permalink to this headline")

- revert the stripping of trailing slashes in endpoint URLs since this can lead to
problems in case the trailing slash is actually wanted

- starter packs were removed from Github and are therefore no longer tested by Travis script

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id123 "Permalink to this headline")

- all temporal model files are now deleted after stopping the Rasa server

- `rasa shell nlu` now outputs unicode characters instead of `\uxxxx` codes

- fixed PUT /model with model\_server by deserializing the model\_server to
EndpointConfig.

- `x in AnySlotDict` is now `True` for any `x`, which fixes empty slot warnings in
interactive learning

- `rasa train` now also includes NLU files in other formats than the Rasa format

- `rasa train core` no longer crashes without a `--domain` arg

- `rasa interactive` now looks for endpoints in `endpoints.yml` if no `--endpoints` arg is passed

- custom files, e.g. custom components and channels, load correctly when using
the command line interface

- `MappingPolicy` now works correctly when used as part of a PolicyEnsemble

## \[1.1.4\] - 2019-06-18 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id124 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id125 "Permalink to this headline")

- unfeaturize single entities

- added agent readiness check to the `/status` resource

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id126 "Permalink to this headline")

- removed leading underscore from name of ‘\_create\_initial\_project’ function.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id127 "Permalink to this headline")

- fixed bug where facebook quick replies were not rendering

- take FB quick reply payload rather than text as input

- fixed bug where training\_data path in metadata.json was an absolute path

## \[1.1.3\] - 2019-06-14 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id128 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id129 "Permalink to this headline")

- fixed any inconsistent type annotations in code and some bugs revealed by
type checker

## \[1.1.2\] - 2019-06-13 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id130 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id131 "Permalink to this headline")

- fixed duplicate events appearing in tracker when using a PostgreSQL tracker store

## \[1.1.1\] - 2019-06-13 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id132 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id133 "Permalink to this headline")

- fixed compatibility with Rasa SDK

- bot responses can contain `custom` messages besides other message types

## \[1.1.0\] - 2019-06-13 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id134 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id135 "Permalink to this headline")

- nlu configs can now be directly compared for performance on a dataset
in `rasa test nlu`

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id136 "Permalink to this headline")

- update the tracker in interactive learning through reverting and appending events
instead of replacing the tracker

- `POST /conversations/{conversation_id}/tracker/events` supports a list of events

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id137 "Permalink to this headline")

- fixed creation of `RasaNLUHttpInterpreter`

- form actions are included in domain warnings

- default actions, which are overriden by custom actions and are listed in the
domain are excluded from domain warnings

- SQL `data` column type to `Text` for compatibility with MySQL

- non-featurizer training parameters don’t break SklearnPolicy anymore

## \[1.0.9\] - 2019-06-10 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id138 "Permalink to this headline")

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id139 "Permalink to this headline")

- revert PR #3739 (as this is a breaking change): set `PikaProducer` and
`KafkaProducer` default queues back to `rasa_core_events`

## \[1.0.8\] - 2019-06-10 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id140 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id141 "Permalink to this headline")

- support for specifying full database urls in the `SQLTrackerStore` configuration

- maximum number of predictions can be set via the environment variable
`MAX_NUMBER_OF_PREDICTIONS` (default is 10)

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id142 "Permalink to this headline")

- default `PikaProducer` and `KafkaProducer` queues to `rasa_production_events`

- exclude unfeaturized slots from domain warnings

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id143 "Permalink to this headline")

- loading of additional training data with the `SkillSelector`

- strip trailing slashes in endpoint URLs

## \[1.0.7\] - 2019-06-06 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id144 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id145 "Permalink to this headline")

- added argument `--rasa-x-port` to specify the port of Rasa X when running Rasa X locally via `rasa x`

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id146 "Permalink to this headline")

- slack notifications from bots correctly render text

- fixed usage of `--log-file` argument for `rasa run` and `rasa shell`

- check if correct tracker store is configured in local mode

## \[1.0.6\] - 2019-06-03 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id147 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id148 "Permalink to this headline")

- fixed backwards incompatible utils changes

## \[1.0.5\] - 2019-06-03 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id149 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id150 "Permalink to this headline")

- fixed spacy being a required dependency (regression)

## \[1.0.4\] - 2019-06-03 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id151 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id152 "Permalink to this headline")

- automatic creation of index on the `sender_id` column when using an SQL
tracker store. If you have an existing data and you are running into performance
issues, please make sure to add an index manually using
`CREATE INDEX event_idx_sender_id ON events (sender_id);`.

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id153 "Permalink to this headline")

- NLU evaluation in cross-validation mode now also provides intent/entity reports,
confusion matrix, etc.

## \[1.0.3\] - 2019-05-30 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id154 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id155 "Permalink to this headline")

- non-ascii characters render correctly in stories generated from interactive learning

- validate domain file before usage, e.g. print proper error messages if domain file
is invalid instead of raising errors

## \[1.0.2\] - 2019-05-29 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id156 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id157 "Permalink to this headline")

- added `domain_warnings()` method to `Domain` which returns a dict containing the
diff between supplied {actions, intents, entities, slots} and what’s contained in the
domain

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id158 "Permalink to this headline")

- fix lookup table files failed to load issues/3622

- buttons can now be properly selected during cmdline chat or when in interactive learning

- set slots correctly when events are added through the API

- mapping policy no longer ignores NLU threshold

- mapping policy priority is correctly persisted

## \[1.0.1\] - 2019-05-21 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id159 "Permalink to this headline")

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id160 "Permalink to this headline")

- updated installation command in docs for Rasa X

## \[1.0.0\] - 2019-05-21 [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id161 "Permalink to this headline")

### Features [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id162 "Permalink to this headline")

- added arguments to set the file paths for interactive training

- added quick reply representation for command-line output

- added option to specify custom button type for Facebook buttons

- added tracker store persisting trackers into a SQL database
(`SQLTrackerStore`)

- added rasa command line interface and API

- Rasa HTTP training endpoint at `POST /jobs`. This endpoint
will train a combined Rasa Core and NLU model

- `ReminderCancelled(action_name)` event to cancel given action\_name reminder
for current user

- Rasa HTTP intent evaluation endpoint at `POST /intentEvaluation`.
This endpoints performs an intent evaluation of a Rasa model

- option to create template for new utterance action in `interactive learning`

- you can now choose actions previously created in the same session
in `interactive learning`

- add formatter ‘black’

- channel-specific utterances via the `- "channel":` key in utterance templates

- arbitrary json messages via the `- "custom":` key in utterance templates and
via `utter_custom_json()` method in custom actions

- support to load sub skills (domain, stories, nlu data)

- support to select which sub skills to load through `import` section in
`config.yml`

- support for spaCy 2.1

- a model for an agent can now also be loaded from a remote storage

- log level can be set via environment variable `LOG_LEVEL`

- add `--store-uncompressed` to train command to not compress Rasa model

- log level of libraries, such as tensorflow, can be set via environment variable `LOG_LEVEL_LIBRARIES`

- if no spaCy model is linked upon building a spaCy pipeline, an appropriate error message
is now raised with instructions for linking one

### Improvements [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id163 "Permalink to this headline")

- renamed all CLI parameters containing any `_` to use dashes `-` instead (GNU standard)

- renamed `rasa_core` package to `rasa.core`

- for interactive learning only include manually annotated and ner\_crf entities in nlu export

- made `message_id` an additional argument to `interpreter.parse`

- changed removing punctuation logic in `WhitespaceTokenizer`

- `training_processes` in the Rasa NLU data router have been renamed to `worker_processes`

- created a common utils package `rasa.utils` for nlu and core, common methods like `read_yaml` moved there

- removed `--num_threads` from run command (server will be asynchronous but
running in a single thread)

- the `_check_token()` method in `RasaChat` now authenticates against `/auth/verify` instead of `/user`

- removed `--pre_load` from run command (Rasa NLU server will just have a maximum of one model and that model will be
loaded by default)

- changed file format of a stored trained model from the Rasa NLU server to `tar.gz`

- train command uses fallback config if an invalid config is given

- test command now compares multiple models if a list of model files is provided for the argument `--model`

- Merged rasa.core and rasa.nlu server into a single server. See swagger file in `docs/_static/spec/server.yaml` for
available endpoints.

- `utter_custom_message()` method in rasa\_core\_sdk has been renamed to `utter_elements()`

- updated dependencies. as part of this, models for spacy need to be reinstalled
for 2.1 (from 2.0)

- make sure all command line arguments for `rasa test` and `rasa interactive` are actually used, removed arguments
that were not used at all (e.g. `--core` for `rasa test`)

### Deprecations and Removals [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id164 "Permalink to this headline")

- removed possibility to execute `python -m rasa_core.train` etc. (e.g. scripts in `rasa.core` and `rasa.nlu`).
Use the CLI for rasa instead, e.g. `rasa train core`.

- removed `_sklearn_numpy_warning_fix` from the `SklearnIntentClassifier`

- removed `Dispatcher` class from core

- removed projects: the Rasa NLU server now has a maximum of one model at a time loaded.

### Bugfixes [¶](https://legacy-docs-v1.rasa.com/1.5.3/changelog/\#id165 "Permalink to this headline")

- evaluating core stories with two stage fallback gave an error, trying to handle None for a policy

- the `/evaluate` route for the Rasa NLU server now runs evaluation
in a parallel process, which prevents the currently loaded model unloading

- added missing implementation of the `keys()` function for the Redis Tracker
Store

- in interactive learning: only updates entity values if user changes annotation

- log options from the command line interface are applied (they overwrite the environment variable)

- all message arguments (kwargs in dispatcher.utter methods, as well as template args) are now sent through to output channels

- utterance templates defined in actions are checked for existence upon training a new agent, and a warning
is thrown before training if one is missing

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