MinIO: Minor Bug Fix Release

Source available — automated, not human-reviewed

Component: minio · Channel: stable. Automated analysis, not a compatibility certification. How this works.

Analysis updated: 2026-11-01.

Compatibility not verified — check source notes

📄 .MD

✨ Features 4 ⚡ Improvements 4 🔧 Bug Fixes 6

⚡ Executive Summary (TL;DR)

MinIO RELEASE.2021-08-25T00-41-18Z. Source highlight: Click here to download the latest version of MinIO.

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Who Does This Impact? (Role-Based Analysis)

💻 Software Engineers & Devs

Check the source notes against the package and APIs you use before upgrading.

📊 Product & Engineering Leads

Use the documented changes to assess relevance to your product; release frequency alone is not a quality measure.

⚙️ DevOps & Security

Verify the target version, runtime requirements and rollback procedure in the official documentation.

✨ New Features & Capabilities (4)

Add MinIO server helm chart. See (#12509) for more details.
Add admin api to return sys config info (#12988) (08/25/21) (Shireesh Anjal)
Add support for changing job name in Grafana dashboard (#13050) (08/24/21) (Nitish Tiwari)
Add MinIO server helm chart (#12509) (08/21/21) (Nitish Tiwari)

⚡ Performance & Enhancements (4)

Grafana dashboard improvements. See (#13050) for more details.
Replication improvements. See (#12932, #13014, #13061) for more details.
heal improvements. See (#13018, #13038, #13054, #13060) for more details.
Memory improvements. See (#13040, #13047) for more details.

🔧 Bug Fixes & Patches (6)

Scanner: Fix concurrent map read/write. See (#13052) for more details.
Fix few race conditions. See (#12857, #13041) for more details.
Minor fix in prefix usage function. See (#13026) for more details.
fix: look to exact return returned from initServer() in tests (08/24/21) (Harshavardhana)
fix: allow an entire set to be dropped (#13060) (08/24/21) (Harshavardhana)
fix: helm missing console ingress apiVersion (08/24/21) (Harshavardhana)

📄 View Raw Release Notes (Original Developer Log)

## Highlights - Click [here](https://min.io/download) to download the latest version of MinIO. - Click [here](https://min.io/pricing) for production support. - Admin api to return sys config info. See (#12988) for more details. - Transition code omptimization. See (#13059) for more details. - Grafana dashboard improvements. See (#13050) for more details. - Scanner: Fix concurrent map read/write. See (#13052) for more details. - Replication improvements. See (#12932, #13014, #13061) for more details. - heal improvements. See (#13018, #13038, #13054, #13060) for more details. - Memory improvements. See (#13040, #13047) for more details. - Fix few race conditions. See (#12857, #13041) for more details. - Minor fix in prefix usage function. See (#13026) for more details. - Add MinIO server helm chart. See (#12509) for more details. - **NOTE**: It is advised that anyone upgrading from any release from 2020 should directly upgrade to RELEASE.2021-06-07T21-40-51Z - (*or any release prior to RELEASE.2021-05-11T23-27-41Z so that you can then directly upgrade to RELEASE.2021-06-07T21-40-51Z or later*). A healing issue that leads to premature truncation of objects when healing legacy content before versioning was introduced refer #12459, #12410, and #12451 ## Changelog - update console v0.9.4 (08/24/21) (Harshavardhana) - Add admin api to return sys config info (#12988) (08/25/21) (Shireesh Anjal) - fix: look to exact return returned from initServer() in tests (08/24/21) (Harshavardhana) - Use part sizes correctly in multipart replication (#13061) (08/24/21) (Poorna Krishnamoorthy) - fix: allow an entire set to be dropped (#13060) (08/24/21) (Harshavardhana) - update console version to v0.9.3 (08/24/21) (Harshavardhana) - remove unecessary metadata structs in applyTransitionAction() (#13059) (08/24/21) (Harshavardhana) - update helm release to v1.0.3 (08/24/21) (Harshavardhana) - fix: helm missing console ingress apiVersion (08/24/21) (Harshavardhana) - Add support for changing job name in Grafana dashboard (#13050) (08/24/21) (Nitish Tiwari) - use available memory to restrict API calls (#13047) (08/24/21) (Harshavardhana) - fix: New disks healing should pick unformatted disks as well (#13054) (08/24/21) (Anis Elleuch) - fix(Router): typo: completemutipartupload to completemultipartupload (#13051) (08/24/21) (MoonJustry) - Fix concurrent map read/write (#13052) (08/24/21) (Klaus Post) - fix: go mod tidy (08/23/21) (Harshavardhana) - Update minio-go library (#13045) (08/24/21) (Anis Elleuch) - fix: resync of replication of delete markers (#12932) (08/23/21) (Poorna Krishnamoorthy) - heal: Remove transitioned objects' parts from outdated disks (#13018) (08/23/21) (Krishnan Parthasarathi) - Fix formatting disks in a test environment (#13043) (08/23/21) (Anis Elleuch) - fix: missing index.yaml for helm charts (08/23/21) (Harshavardhana) - Reuse buffers when writing metadata (#13040) (08/23/21) (Klaus Post) - Fix TrafficMeter data race (#13041) (08/23/21) (Klaus Post) - heal: Return parity for storage classes in heal info API (#13038) (08/23/21) (Anis Elleuch) - replication: Lock object while replicating (#13014) (08/23/21) (Klaus Post) - remove flaky healing test (08/23/21) (Harshavardhana) - Fix diskinfo race (#12857) (08/23/21) (Klaus Post) - fix: decodeDirObject in prefix usage function (#13026) (08/22/21) (Harshavardhana) - fix: check for xl.meta as directory fallback (#13023) (08/21/21) (Harshavardhana) - update helm to v1.0.1 (08/20/21) (Harshavardhana) - Add MinIO server helm chart (#12509) (08/21/21) (Nitish Tiwari)

← Older Version MinIO RELEASE.2021-08-20T18-32-01Z Newer Version → MinIO RELEASE.2021-08-31T05-46-54Z