MLflow 2.13.1 is a patch release that includes several bug fixes and integration improvements to existing features. New features that are introduced in this patch release are intended to provide a foundation to further major features that will be released in the next release.

Features:

• [MLflow] Add mlflow[langchain] extra that installs recommended versions of langchain with MLflow (#12182, @sunishsheth2009)
• [Tracking] Adding the ability to override the model_config in langchain flavor if loaded as pyfunc (#12085, @sunishsheth2009)
• [Model Registry] Automatically detect if Presigned URLs are required for Unity Catalog (#12177, @artjen)

Bug fixes:

• [Tracking] Use getUserLocalTempDir and getUserNFSTempDir to replace getReplLocalTempDir and getReplNFSTempDir in databricks runtime (#12105, @WeichenXu123)
• [Model] Updating chat model to take default input_example and predict to accept json during inference (#12115, @sunishsheth2009)
• [Tracking] Automatically call load_context when inferring signature in pyfunc (#12099, @sunishsheth2009)