News and Updates

SQLAlchemy 1.4.39 Released
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SQLAlchemy 1.4.39 is now available.

Release 1.4.39 fixes a single issue in 1.4.38 which is that a fix to the sqlalchemy.ext.mutable extension involving pickling failed to accommodate for the previous pickling format, which would impact an in-place upgrade of SQLAlchemy from 1.4.37 to 1.4.38 in an application that refers to existing pickled ORM objects, such as if they were stored in a cache. As SQLAlchemy's creator has at times been hit with this issue in production in days very long ago, we are rushing out a fix in 1.4.39 so that the legacy format for the "mutable" construct will remain consumable.

The complete changelog for 1.4.39 is at Changelog.

SQLAlchemy 1.4.39 is available on the Download Page.

SQLAlchemy 1.4.38 Released
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SQLAlchemy 1.4.38 is now available.

Release 1.4.38 is a bug fix release, covering a variety of use-case specific issues. One fix of note involves applications that make direct use of the "lambda statement" construct as a replacement for "baked queries", where a critical thread-oriented race condition that would cause cache corruption specific to lambda statements has been fixed.

The complete changelog for 1.4.38 is at Changelog.

SQLAlchemy 1.4.38 is available on the Download Page.

SQLAlchemy 1.4.37 Released
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SQLAlchemy 1.4.37 is now available.

Release 1.4.37 is a bug fix release, covering a variety of use-case specific issues.

The complete changelog for 1.4.37 is at Changelog.

SQLAlchemy 1.4.37 is available on the Download Page.

SQLAlchemy 1.4.36 Released
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SQLAlchemy 1.4.36 is now available.

Release 1.4.36 includes a variety of bugfixes, including one recent ORM related regression, as well as a memory leak issue in the now-deprecated C extensions that had gone unnoticed for many years, triggered by interpreting a Row object as a NumPy array among other cases involving fetching of non-present attributes.

The complete changelog for 1.4.36 is at Changelog.

SQLAlchemy 1.4.36 is available on the Download Page.

SQLAlchemy 1.4.35 Released
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SQLAlchemy 1.4.35 is now available.

Release 1.4.35 repairs a critical regression in the now-yanked 1.4.34 release which could cause incorrect bound parameter values to be rendered due to a caching issue caused by the memory performance improvement first released in version 1.4.35. 1.4.35 is recommended for all users currently running 1.4.33 or 1.4.34.

The complete changelog for 1.4.35 is at Changelog.

SQLAlchemy 1.4.35 is available on the Download Page.