Azure/azure-sdk-for-python azure-cosmos_4.16.4

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4.16.4 (2026-09-02)

Bugs Fixed

• Fixed regression with handling of v1 legacy containers when passing {} as a partition key. {} and NonePartitionKeyValue now both resolve to the Undefined effective partition key. See PR 48422
• Fixed the same TypeError on system key (migrated) containers, where a missing partition key value resolves to _Empty instead of Undefined. It now maps to the minimum effective partition key. See PR 48422

Other Changes

• Marked the Throughput Buckets feature as GA. See 48838.