# MinIO RELEASE.2023-09-16T01-01-47Z — Release & Upgrade Intelligence
- **Product:** MinIO (https://min.io)
- **Version:** RELEASE.2023-09-16T01-01-47Z
- **Released:** Sep 16, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/minio/updates/RELEASE.2023-09-16T01-01-47Z/

## Executive Summary (TL;DR)
MinIO RELEASE.2023-09-16T01-01-47Z. Source highlight: Address some significant memory issues in replication MRF when many objects are from existing object replication

## New Features
- introduce MINIO_BROWSER_REDIRECT env to enable/disable auto-redirect
- add backups for usage-caches to rely on upon error
- Added MINIO_PROMETHEUS_AUTH_TOKEN env support

## Improvements
- Improve Disk replacement healing from single-threaded to multi-threaded via relying on the `nr_requests` value on Linux

## Bug Fixes
- fix: change DISK_ to DRIVE_ for some drive related envs
- fix: ignore transient errors in read path
- fix: allow concurrent SFTP connections
- fix: allow dynamic ports for API only in non-distributed setups
- fix: send content-md5 for AWS S3 proactively
- Fix policy package import name