- Added devops RESTful API for rolling upgrades and a task‑driven collection observer, plus configurable GC scan intervals and option to disable search optimization.
- Introduced SDK type logging via user‑agent, ability to skip Auto ID and Partition Key checks for faster validation, and removed always‑true delete expression support.
- Fixed critical bugs including deadlocks, index precision mismatches, grow‑task stalls, leader view sync issues, REST API parameter handling, and improved performance for large segment counts.