# MinIO RELEASE.2019-08-29T00-25-01Z — Release & Upgrade Intelligence
- **Product:** MinIO (https://min.io)
- **Version:** RELEASE.2019-08-29T00-25-01Z
- **Released:** Aug 29, 2019
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/minio/updates/RELEASE.2019-08-29T00-25-01Z/

## Executive Summary (TL;DR)
MinIO RELEASE.2019-08-29T00-25-01Z. Source highlight: This release fixes various bug and includes one **BREAKING** change in MinIO's admin APIs (see https://github.com/minio/minio/pull/8070). To prevent breakage please upgrade MinIO client `mc` along with this release - the minimum supported version of `mc` is RELEASE.2019-08-29T00-40-57Z.

## Breaking Changes & Deprecations
- - This release fixes various bug and includes one **BREAKING** change in MinIO's admin APIs (see https://github.com/minio/minio/pull/8070). To prevent breakage please upgrade MinIO client `mc` along with this release - the minimum supported version of `mc` is RELEASE.2019-08-29T00-40-57Z.

## Improvements
- Major performance improvements on drives with WCE disabled, more information in #7888
- write() to disk in 4MB blocks for better performance (#7888) (08/23/19)

## Bug Fixes
- This release fixes various bug and includes one **BREAKING** change in MinIO's admin APIs (see https://github.com/minio/minio/pull/8070). To prevent breakage please upgrade MinIO client `mc` along with this release - the minimum supported version of `mc` is RELEASE.2019-08-29T00-40-57Z.
- Fixes a major regression in **distributed locking** where multiple writers wouldn't serialize, more information in #8142
- Fix ignoring claims in list buckets call (#8118) (08/21/19)
- Remove go mod cache due to buggy travis caching (#8113) (08/21/19)