# MinIO RELEASE.2019-08-14T20-37-41Z — Release & Upgrade Intelligence
- **Product:** MinIO (https://min.io)
- **Version:** RELEASE.2019-08-14T20-37-41Z
- **Released:** Aug 14, 2019
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/minio/updates/RELEASE.2019-08-14T20-37-41Z/

## Executive Summary (TL;DR)
MinIO RELEASE.2019-08-14T20-37-41Z. Source highlight: **Rolling upgrade is not recommended for this release**

## Breaking Changes & Deprecations
- - **Breaking change** - MinIO users can be part of groups with multiple policies. Existing users of `mc` should upgrade to [latest](https://github.com/minio/mc/releases/tag/RELEASE.2019-08-14T20-49-49Z) using `mc update` - refer [here](https://github.com/minio/minio/tree/master/docs/multi-user) for command line changes.

## New Features
- BucketLifecycle feature added to expire objects automatically refer here
- Add User-Agent header with MinIO release details in http logs (#7843) (08/14/19) <Krishnan Parthasarathi>
- browser: Add user-agent header filter to gorilla mux route (#8040) (08/13/19) <Anis Elleuch>
- Add bucket lifecycle expiry feature  (#7834) (08/09/19) <Anis Elleuch>

## Improvements
- A full rewrite of Cache implementation for higher performance and bit-rot protection. Existing users of cache will be automatically migrated to newer format.
- Enhance audit logging to capture responseTimes (#8067) (08/12/19) <Harshavardhana>

## Bug Fixes
- Other misc bug fixes in federation, deletion of objects etc.
- Fix DeleteObjects() to remove renamed objects inside (#8072) (08/14/19) <Nitish Tiwari>
- Doc: Fix PutObject API known limitations text (#7704) (08/13/19) <kannappanr>
- fix: #8051 so that stale DNS entries are cleaned-up (#8053) (08/13/19) <maihde>
- fix type conversion in `UpdateKey` for Vault (#8058) (08/11/19) <Andreas Auernhammer>
- Fix healthcheck to look for entry of all IPv4 addresses (0.0.0.0) (#8046) (08/09/19) <Nitish Tiwari>