python-v1.6.5

Python v1.6.4 adds DeltaTable.scan for lazy engine-native reads, column mapping creation, writer features like row-group boundary rolling, and performance improvements in partition splitting and zero-copy uploads. The release removes PartitionFilter in favor of kernel predicates (a breaking change) and fixes stability issues in schema merging for partitioned tables, deletion vector handling, memory leaks during uploads, and metadata-only scan batching.

Added support for dropping NOT NULL column constraints and custom token credentials in Unity Catalog, plus lazy snapshot materialization and replay capabilities. Fixed delete operations on string columns and OPTIMIZE failures on Spark-written tables; Change Data Feed now respects commit timestamps and supports deletion vectors.

Python-delta v1.6.2 consolidates table URL parsing logic across platforms and exposes partition_values_map as a new public API for accessing partition metadata. The release also fixes merge operation barriers, preserves container values when null counts are invalid, and resolves SFTP dependency issues on Windows.

python-v1.6.1: Column Mapping write support

This release adds column mapping write support and BlindDeltaTable for stats-free appends, alongside improvements to data skipping and partition pruning. S3DynamoDbLogStore has been removed in preparation for 1.0.0.

Delta-rs v0.32.4 is a backport maintenance release of the 0.32.x line following the main branch's move to 1.x, with voluntary ongoing support. The release announcement does not specify user-facing changes; refer to the full changelog for actual features, fixes, or breaking changes since v0.32.3.

rust-v0.32.3 adds support for the variant data type in Delta Lake schemas. The release is otherwise documentation maintenance with no other user-facing changes.