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Upgrading more-itertools 10 to 11

Breaking10.8.0 → 11.2.1Breaking9Platform2New11Changed16Fixed2Other1

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BreakingUpgrade verdict

9 breaking changes and 2 platform requirement changes.

In plain terms
  • zip_equal was removed in 11.0.0.
  • This release restores pairwise, which was mistakenly removed in 11.0.0 instead of being deprecated.
  • Python 3.9 support was dropped, since it went EOL on 2025-10-31.
  • iequals no longer returns True when called with ([], [ANY]) (thanks to rhettinger and pochmann3).
Must act Top 5 of 11 that need code or config changes

Python requirement changed in 11.2.0: >=3.9 → >=3.11.

What you must change

Breaking9
zip_equal was removed in 11.0.0.
zip_equalDeprecationWarning
11.0.2GitHub ReleaseOriginalView source
This release restores pairwise, which was mistakenly removed in 11.0.0 instead of being deprecated.
pairwiseitertools.pairwise
11.0.1GitHub ReleaseOriginalView source
Python 3.9 support was dropped, since it went EOL on 2025-10-31.
11.0.0GitHub ReleaseOriginalView source
iequals no longer returns True when called with ([], [ANY]) (thanks to rhettinger and pochmann3).
iequalsTrue
11.0.0GitHub ReleaseOriginalView source
callback_iter is deprecated.
callback_iter
11.0.0GitHub ReleaseOriginalView source
The pred argument for locate and replace must now be able to handle a variable number of arguments.
predlocatereplace
11.0.0GitHub ReleaseOriginalView source
unique_everseen now raises TypeError when input elements are not hashable.
unique_everseenTypeError
11.0.0GitHub ReleaseOriginalView source
windowed now raises ValueError when given a window size of 0 (thanks to rhettinger and brevzin).
windowedValueError
11.0.0GitHub ReleaseOriginalView source
Parameter names for flatten, iter_except, repeatfunc, prepend, transpose, and sum_of_squares have been changed.
flatteniter_exceptrepeatfuncprependtransposesum_of_squares
11.0.0GitHub ReleaseOriginalView source
Platform2
Drops official support for Python 3.10.
11.2.0GitHub ReleaseSummarizedView source
Adds official support for Python 3.15.
11.2.0GitHub ReleaseSummarizedView source