v2.4.17

## v2.4.17

Release Date: November 22, 2024

| Milvus version | Python SDK version | Java SDK version | Node.js SDK version |
|----------------|--------------------|------------------|---------------------|
| 2.4.17         | 2.4.9              | 2.4.8            | 2.4.9               |

Milvus 2.4.17 was a minor release aimed at critical stability enhancements. This version addressed various bugs and implemented performance optimizations to bolster system reliability.

### Improvements

- Enhanced: [2.4] Prevented the generation of "null" search parameters ([#37811](https://github.com/milvus-io/milvus/pull/37811)).
- Enhanced: [2.4] Removed unnecessary segment clone updates in distribution ([#37797](https://github.com/milvus-io/milvus/pull/37797)) ([#37833](https://github.com/milvus-io/milvus/pull/37833)).
- Enhanced: [2.4] Provided secondary index criteria for filtering `leaderview` ([#37777](https://github.com/milvus-io/milvus/pull/37777)) ([#37802](https://github.com/milvus-io/milvus/pull/37802)).
- Used batch processing to speed up listing collections from meta kv ([#37752](https://github.com/milvus-io/milvus/pull/37752)).
- Removed collection queryable checks from health checks ([#37731](https://github.com/milvus-io/milvus/pull/37731)).
- [2.4] Removed segment-level tags from monitoring metrics ([#37737](https://github.com/milvus-io/milvus/pull/37737)).
- [2.4] Removed unnecessary cloning in `setstate` ([#37736](https://github.com/milvus-io/milvus/pull/37736)).
- Added search parameters to search requests in RESTful API ([#37673](https://github.com/milvus-io/milvus/pull/37673)).
- Made Milvus images with AddressSanitizer (ASAN) available ([#37682](https://github.com/milvus-io/milvus/pull/37682)).
- [cp24] Tidied compaction logs ([#37647](https://github.com/milvus-io/milvus/pull/37647)).
- [2.4] Invalidated the collection cache when releasing collections ([#37628](https://github.com/milvus-io/milvus/pull/37628)).
- [2.4] Added CGO call metrics for load/write APIs ([#37627](https://github.com/milvus-io/milvus/pull/37627)).
- Enabled node assignment policies in resource groups ([#37588](https://github.com/milvus-io/milvus/pull/37588)).
- Optimized `describe collection` and index operations ([#37605](https://github.com/milvus-io/milvus/pull/37605)).
- [2.4] Handled legacy proxy load fields requests ([#37569](https://github.com/milvus-io/milvus/pull/37569)).
- [2.4] Added context tracing for query coordination queryable checks ([#37534](https://github.com/milvus-io/milvus/pull/37534)).
- [2.4] Improved root coordination task scheduling policies ([#37523](https://github.com/milvus-io/milvus/pull/37523)).
- Refactored `createindex` in the RESTful API ([#37237](https://github.com/milvus-io/milvus/pull/37237)).
- [2.4] Used cancel labels for context-canceled storage operations ([#37491](https://github.com/milvus-io/milvus/pull/37491)).
- [2.4] Updated the template expression proto to improve transmission efficiency ([#37485](https://github.com/milvus-io/milvus/pull/37485)).

### Bug fixes

- Supported `upsert` with autoid=true in the RESTful API and fixed associated bugs ([#37766](https://github.com/milvus-io/milvus/pull/37766)).
- Ensured L0 segments were loaded to workers during channel balancing ([#37758](https://github.com/milvus-io/milvus/pull/37758)).
- Fixed delegator stuck in unserviceable status ([#37702](https://github.com/milvus-io/milvus/pull/37702)).
- [2.4] Stored default values when `errkeynotfound` was returned ([#37705](https://github.com/milvus-io/milvus/pull/37705)).
- [cp24] Changed memory check from write lock to read lock ([#37526](https://github.com/milvus-io/milvus/pull/37526)).
- Ensured `getshardleaders` retried only on retriable errors ([#37687](https://github.com/milvus-io/milvus/pull/37687)).
- [cp24] Corrected varchar primary key size calculations ([#37619](https://github.com/milvus-io/milvus/pull/37619)).
- Fixed channel balancing that could get stuck when increasing replica numbers ([#37642](https://github.com/milvus-io/milvus/pull/37642)).
- Addressed issues where searches returned fewer results after query node recovery ([#37610](https://github.com/milvus-io/milvus/pull/37610)).
- [2.4] Fixed bugs retrieving data from the wrong field for L0 segments ([#37599](https://github.com/milvus-io/milvus/pull/37599)).
- Recovered loading collection's `updateTS` after query coordination restarts ([#37580](https://github.com/milvus-io/milvus/pull/37580)).
- [2.4] Added IP address validation to `paramtable` ([#37500](https://github.com/milvus-io/milvus/pull/37500)).
- Fixed search/query failures caused by segments not being loaded ([#37544](https://github.com/milvus-io/milvus/pull/37544)).
- Resolved watch channel issues due to timer reset misuse ([#37542](https://github.com/milvus-io/milvus/pull/37542)).
- Fixed subscription leaks ([#37541](https://github.com/milvus-io/milvus/pull/37541)).
- Resolved issues with excessively growing segments ([#37540](https://github.com/milvus-io/milvus/pull/37540)).
- [cp24] Corrected dropped segment metrics ([#37471](https://github.com/milvus-io/milvus/pull/37471)).
- Fixed repeated error codes in Milvus and Segcore ([#37449](https://github.com/milvus-io/milvus/pull/37449)).
- [cp24] Separated L0 and mixed trigger intervals ([#37319](https://github.com/milvus-io/milvus/pull/37319)).