Changelog

58.4.1 - (2026-10-22)

Full Changelog

Bug fixes

• [58_maintenance] Write empty validity buffers for arrays without nulls in IPC writer by @mailmindlin in #11817
• [58_maintenance] fix: account for offsets in runarrays when using extend for MutableArrayData by @Jefffrey in #11761
• [58_maintenance] fix(arrow-schema): validate UnionFields when deserializing by @Jefffrey in #11760
• [58_maintenance] fix: implement ArrayData::validate_values for union types by @Jefffrey in #11762
• [58_maintenance] fix(arrow-data): check view nulls at the right index in ArrayData equality by @Jefffrey in #11758
• [58_maintenance] fix(arrow-array): avoid returning corrupt array in GenericByteArray::into_builder by @Jefffrey in #11707
• [58_maintenance] fix(arrow-buffer): prevent use-after-free in Buffer::shrink_to_fit when MemoryReservation::resize panics by @alamb in #11785
• [58_maintenance] fix: account for arraydata offset when comparing runarrays by @Jefffrey in #11755
• [58_maintenance] fix(arrow-data): account for FixedSizeList parent offset in MutableArrayData by @Jefffrey in #11756
• [58_maintenance] fix: use correct length in runarray validation by @Jefffrey in #11767
• [58_maintenance] fix: account for offset when building RunArray from ArrayData by @Jefffrey in #11766
• [58_maintenance] fix: UnionFields::from_iter should validate input by @Jefffrey in #11763
• [58_maintenance] Fix sliced sparse union ArrayData conversion by @Jefffrey in #11759
• [58_maintenance] fix(arrow-array): use the field's type id in dense union logical_nulls by @Jefffrey in #11757
• [58_maintenance] fix(arrow-array): PrimitiveRunBuilder was buggy after finish by @Jefffrey in #11704
• [58_maintenance] fix(arrow-data): fix gaps in ListView equality by @Jefffrey in #11703
• [58_maintenance] fix(arrow-array): preserve type params in PrimitiveArray::into_builder by @Jefffrey in #11765
• [58_maintenance] fix: Buffer::into_mutable return error instead of panic for converting owned sliced when not start at 0 and fix returned Mutable length by @Jefffrey in #11706
• [58_maintenance] fix: finish methods in PrimitiveDictionaryBuilder discard type params by @Jefffrey in #11705

Miscellaneous

• [58_maintenance] Upgrade legacy Thrift dependency to 0.23 by @beinan in #11365