v2.5.25

milvus-io/milvusv2.5.25Jan 8, 2026by yanliang567

AI Summary

This update focuses on enhancing the reliability of storage operations and optimizing background task scheduling. It features a robust retry mechanism for object storage under rate-limiting and improved resource estimation.

Key Highlights

Improved reliability of object storage operations with automatic retry on rate limit errors.
Improved slot allocation accuracy for indexing tasks.
Fixed geometry data conversion inconsistencies.
Fixed ETCD error when dropping large collections.
Made metadata batch processing configurable.

New Features

Automatic retry for object storage rate limits
Configurable metadata batch processing
Improved resource estimation for indexing tasks

Full Release Notes

## v2.5.25

Release date: January 12, 2026

| Milvus Version | Python SDK Version | Node.js SDK Version | Java SDK Version | Go SDK Version |
|:-------------- |:------------------|:--------------------|:-----------------|:---------------|
| 2.5.25         | 2.5.18             | 2.5.13              | 2.5.14           | 2.5.14         |

We are pleased to announce the release of Milvus 2.5.25! This update focuses on enhancing the reliability of storage operations and optimizing background task scheduling. Key improvements include a more robust retry mechanism for object storage under rate-limiting conditions and more accurate resource estimation for indexing tasks. This release also resolves several critical issues, including ETCD RPC limits during collection drops and consistency in geometry data conversions. We recommend all users on the 2.5 branch upgrade to this version for improved system stability.

### Improvements

- Prevented message loss in Pulsar consumers after client library upgrades ([#46591](https://github.com/milvus-io/milvus/pull/46591))
- Made metadata batch processing configurable to prevent transaction errors ([#46514](https://github.com/milvus-io/milvus/pull/46514))
- Improved reliability of object storage operations under high load with automatic retry on rate limit errors ([#46463](https://github.com/milvus-io/milvus/pull/46463))
- Added configuration option for variable-length field size estimation ([#46301](https://github.com/milvus-io/milvus/pull/46301))
- Improved slot allocation accuracy for indexing tasks ([#46260](https://github.com/milvus-io/milvus/pull/46260))

### Bug fixes

- Fixed geometry data conversion inconsistencies ([#46872](https://github.com/milvus-io/milvus/pull/46872))
- Fixed inverted index compaction issue that could cause segment load failures ([#46868](https://github.com/milvus-io/milvus/pull/46868))
- Fixed text log loading failure ([#46704](https://github.com/milvus-io/milvus/pull/46704))
- Fixed ETCD error when dropping large collections ([#46580](https://github.com/milvus-io/milvus/pull/46580))
- Fixed resource leak issue with proxy clients ([#46491](https://github.com/milvus-io/milvus/pull/46491))