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REGR: Subclassing `Styler` and addressing `from_custom_template` (#42091)
DOC: batch of documentation clarifications (#66397)
DOC: batch of user guide and docstring fixes (#66655)
DOC: drop stale "experimental" notes and fix tab-completion list (#65385)
DOC: fix no-op dict rename_categories example in categorical.rst (#66575)
DEPR: deprecate DataFrame construction from ragged list of sequences (#65751)
DOC: Add practical example for removing duplicate rows (#65114)
DOC: clarify eval/query performance guidance (GH#35367) (#64983)
DOC: clarify description of GroupBy.groups attribute (#63486)
DOC: Consolidate migration guides (#63971)
DOC: clarify scalar vs list-like return types for .loc and [] (#65642)
DOC: batch of docstring and user guide fixes (#66429)
DEPR: deprecate set_eng_float_format (#64717)
DOC: Correct a typo in pyarrow.rst (#60865)
DOC: clarify that stack does not sort, only unstack (#65955)
DOC: Use TemporaryDirectory in scale.rst (#62416)
DOC: clarify from_spmatrix converts to CSC, not COO (GH-43419) (#65532)
STY: Use ruff's pyupgrade (#66484)
DOC: fix copy-paste bug in PyArrow storage example in text.rst (#66572)
DOC: clarify resolution-dependence of Timestamp/Timedelta min/max/resolution (#65339)
DOC: Fix typos in User-Defined Functions user guide (#63847)