prepared release of version 3.6.21

CHANGELOG.mdx

@@ -16,6 +16,31 @@ https://github.com/RasaHQ/rasa/tree/main/changelog/ . -->
 
 <!-- TOWNCRIER -->
 
+## [3.6.21] - 2025-01-13
+
+Rasa 3.6.21 (2025-01-13)                         
+### Bugfixes
+- [#1424](https://github.com/rasahq/rasa/issues/1424): Replace `pickle` and `joblib` with safer alternatives, e.g. `json`, `safetensors`, and `skops`, for
+  serializing components.
+
+  **Note**: This is a model breaking change. Please retrain your model.
+
+  If you have a custom component that inherits from one of the components listed below and modified the `persist` or
+  `load` method, make sure to update your code. Please contact us in case you encounter any problems.
+
+  Affected components:
+
+  - `CountVectorFeaturizer`
+  - `LexicalSyntacticFeaturizer`
+  - `LogisticRegressionClassifier`
+  - `SklearnIntentClassifier`
+  - `DIETClassifier`
+  - `CRFEntityExtractor`
+  - `TrackerFeaturizer`
+  - `TEDPolicy`
+  - `UnexpectedIntentTEDPolicy`
+
+
 ## [3.6.20] - 2024-04-18
 
 Rasa 3.6.20 (2024-04-18)                         

pyproject.toml

@@ -9,7 +9,7 @@ exclude = "((.eggs | .git | .pytest_cache | build | dist))"
 
 [tool.poetry]
 name = "rasa"
-version = "3.6.20"
+version = "3.6.21"
 description = "Open source machine learning framework to automate text- and voice-based conversations: NLU, dialogue management, connect to Slack, Facebook, and more - Create chatbots and voice assistants"
 authors = [ "Rasa Technologies GmbH <[email protected]>",]
 maintainers = [ "Tom Bocklisch <[email protected]>",]
@@ -156,7 +156,6 @@ certifi = ">=2023.7.22"
 cryptography = ">=41.0.7"
 skops = "0.9.0"
 safetensors = "~0.4.5"
-
 [[tool.poetry.dependencies.tensorflow-io-gcs-filesystem]]
 version = "==0.31"
 markers = "sys_platform == 'win32'"

rasa/version.py

@@ -1,3 +1,3 @@
 # this file will automatically be changed,
 # do not add anything but the version number here!
-__version__ = "3.6.20"
+__version__ = "3.6.21"