Qdrant 1.16.3 release notes, 19 Dec 2025

https://github.com/qdrant/qdrant/pull/7755, https://github.com/qdrant/qdrant/pull/7588 - Respect search and point retrieve timeout when trying to access segments
https://github.com/qdrant/qdrant/pull/7685 - Respect telemetry timeout when fetching shard statistics
https://github.com/qdrant/qdrant/pull/7715 - Log snapshot download duration and speed

https://github.com/qdrant/qdrant/pull/7787, https://github.com/qdrant/qdrant/pull/7791 - Fix WAL delta transfer corrupting replica after a previous full transfer was aborted
https://github.com/qdrant/qdrant/pull/7801, https://github.com/qdrant/qdrant/pull/7805 - Fix flush losing changes on transient disk IO errors, potentially corrupting data
https://github.com/qdrant/qdrant/pull/7792 - Fix incorrectly aborting shard transfers when dropping unrelated shard
https://github.com/qdrant/qdrant/pull/7741 - Fix flush error in Gridstore, potentially corrupting data when quickly alternating inserts/deletes
https://github.com/qdrant/qdrant/pull/7702 - Fix flush data race in Gridstore, potentially corrupting data when storage is cleared in parallel
https://github.com/qdrant/qdrant/pull/7759, https://github.com/qdrant/qdrant/pull/7782 - Fix handling of collection names with weird characters, breaking snapshot transfers for example
https://github.com/qdrant/qdrant/pull/7788 - Fix snapshot metrics not always reporting when zero (snapshot_{creation,recovery}_running, snapshot_created_total)
https://github.com/qdrant/qdrant/pull/7783 - Fix incorrectly reporting optimization errors in telemetry on panic
https://github.com/qdrant/qdrant/pull/7765 - Fix slow shutdown on SIGINT when optimizations are running
https://github.com/qdrant/qdrant/pull/7690 - Fix Qdrant not building on Windows ARM64
https://github.com/qdrant/qdrant/pull/7683 - Keep RocksDB support until 1.18.0 in development builds