ua-parser

Releases

1. ▸▾1.0.25 Apr 2026

   Fixed bug in yaml and json loaders, mostly (but not exclusively) affecting windows (non-ascii regex files would fail to parse)

   • Fixed bug in yaml and json loaders, mostly (but not exclusively) affecting windows (non-ascii regex files would fail to parse)
   • Added caching by default to the regex and re2 resolvers.
   • Dropped Python 3.9
   • Added support for Python 3.13, 3.14, 3.14t, graal25

   Open source →
2. ▸▾1.0.11 Feb 2025

   This led to the parser having to be re-created on every access, which is quite expensive for the re2 and regex-based parser and completely negates the

   This led to the parser having to be re-created on every access, which is quite expensive for the re2 and regex-based parser and completely negates their purpose.

   This can be worked around by using a from-import (as Python will do the memoizing in that case, although every such from-import would create its own parser still)

   from ua_parser import parser
   

   and only parsing through that parser (without using the top-level utilities), or by setting the global parser "by hand" e.g.

   ua_parser.parser = ua_parser.parser 
   

   but obviously that requires knowing about the issue.

   Major thanks to @Rafiot for the report.

• ua-parser-builtinsPyPIPrecompiled rules for User Agent Parser