• The changes to the type hints for always_iterable in 11.0.0 have been reverted due to reported problems (thanks to ngoldbaum and rhettinger)
• zip_equal was removed in 11.0.0. It had been deprecated and raising DeprecationWarning since 2021, but it's removal shoul have been documented in 11.0.0's release notes. We regret the error.
• running_statistics has been moved from more_itertools.more to more_itertools.recipes. Its docstring was also improved (thanks to mastash3ff and rhettinger)