# MinIO Client RELEASE.2026-04-11T06-53-06Z Released: April 11, 2026 This release introduces several new commands including `mc encrypt update` for in-place encryption key rotation, `mc table migrate` for Iceberg catalog migration, and `mc admin accesskey diagnose` for troubleshooting access denied errors. The `mc admin config` commands now support intuitive dot-notation navigation with tree views, and `mc table` commands adopt a unified filesystem-like path syntax. --- ## Downloads ### Binary Downloads | Platform | Architecture | Download | | -------- | ------------ | -------- | | Linux | amd64 | [mc](https://dl.min.io/aistor/mc/release/linux-amd64/mc) | | Linux | arm64 | [mc](https://dl.min.io/aistor/mc/release/linux-arm64/mc) | | macOS | arm64 | [mc](https://dl.min.io/aistor/mc/release/darwin-arm64/mc) | | macOS | amd64 | [mc](https://dl.min.io/aistor/mc/release/darwin-amd64/mc) | | Windows | amd64 | [mc.exe](https://dl.min.io/aistor/mc/release/windows-amd64/mc.exe) | ### Container Images - `quay.io/minio/aistor/mc:RELEASE.2026-04-11T06-53-06Z` - `quay.io/minio/aistor/mc:latest` - `quay.io/minio/aistor/mc:RELEASE.2026-04-11T06-53-06Z.fips` ### Homebrew (macOS/Linux) ```bash brew install minio/stable/mc ``` --- ## Breaking Changes - The `mc console` interactive TUI command has been removed. The TUI is now available as a standalone project (#427) --- ## New Features - **Encryption key rotation**: New `mc encrypt update` subcommand enables in-place object encryption key rotation (SSE-S3/SSE-KMS to SSE-KMS) with `--kms-key`, `--use-bucket-key`, and `--version-id` flags, without re-uploading objects (#397) - **Iceberg catalog migration**: New `mc table migrate` command migrates Iceberg catalog metadata (namespaces, tables, and views) from external catalogs (REST, Hive, Glue, SQL, Nessie) to MinIO AIStor Tables. Supports dry-run previews, namespace/table filtering, resume/retry workflows, and optional `--delete-source` (#402) - **Admin config dot notation**: `mc admin config get/set/reset` now supports dot notation for navigating subsystem configuration (e.g., `log.api.webhook` instead of `log_api_webhook`). New `--tree` / `-v` flag displays the subsystem hierarchy as a visual tree, and `--string` outputs raw config for piping (#406) - **Access key diagnostics**: New `mc admin accesskey diagnose` command displays the full authentication chain for a service account (SA status, parent user status, direct policies, group memberships) and produces actionable findings that pinpoint root causes of 403 Access Denied errors (#444) - **Cluster services info**: New `mc admin cluster services` command displays the status and configuration of cluster services including LDAP, loggers, audit loggers, notification targets, and KMS. Supports `--json` and `--export` flags (#448) - **Empty group creation**: `mc admin group add` now allows creating empty groups without specifying members (e.g., `mc admin group add myminio finance`). Members can be added later with subsequent calls (#460) --- ## Improvements - **Unified table path syntax**: All `mc table` commands now support a unified filesystem-like path (`alias/warehouse/namespace/table`) replacing space-separated positional arguments. Nested namespaces of arbitrary depth are supported. The old positional syntax is preserved as a legacy fallback (#383) - **Tables command alias**: `mc tables` is now accepted as an alias for `mc table` (#412) - **Backward-compatible top RPC display**: `mc support top rpc` now handles older server data formats gracefully (#451) --- ## Bug Fixes - Fixed `mc admin trace` and `mc admin scanner trace` fatally exiting when the remote server disconnects. These commands now automatically retry the connection with a status indicator showing reconnection attempts (#469) - Fixed `mc support top net` displaying incorrect per-interface network statistics on multi-NIC servers. Each interface now shows as a separate row with its real OS interface name and individual throughput rates (#466) - Fixed `mc admin heal --recursive --dry-run` showing grey (unknown) status for healthy buckets. Buckets with no drive issues now correctly display as green/healthy (#464) - Fixed `mc ls` issuing a redundant duplicate `GetBucketLocation` request when listing a non-existent bucket (#447) - Fixed progress bar accuracy across `mc mirror`, `mc cp`, and `mc pipe` commands. Progress bars now exclude enumeration time from transfer speed calculations, prevent percentage from exceeding 100% during upload retries, correctly report bandwidth for pipe uploads and server-side copies, and fix several data races in concurrent progress tracking (#438) --- ## Security & Compliance ### Software Bill of Materials (SBOM) This release includes comprehensive SBOM documentation in multiple formats: - [SPDX JSON](sbom-RELEASE.2026-04-11T06-53-06Z.spdx.json) - Standard SBOM format - [CycloneDX JSON](sbom-RELEASE.2026-04-11T06-53-06Z.cyclonedx.json) - Security scanner compatible - [Go Modules](go-modules-RELEASE.2026-04-11T06-53-06Z.txt) - Human-readable dependency list SBOM files document all direct and transitive dependencies for security auditing and compliance requirements. --- ## Upgrade Instructions To upgrade mc: 1. Download the latest binary for your platform from the Downloads section above 2. Replace your existing mc binary 3. Verify the version: `mc --version` Your existing alias configurations will be preserved. ### New Command Options - `mc encrypt update --kms-key KEY` - In-place encryption key rotation - `mc table migrate` - Iceberg catalog migration with `--dry-run`, `--filter`, `--delete-source` - `mc admin config get/set/reset` - Dot notation paths, `--tree`, `-v`, `--string` flags - `mc admin accesskey diagnose ACCESS_KEY` - Authentication chain diagnostics - `mc admin cluster services ALIAS` - Cluster service status with `--json`, `--export` - `mc admin group add ALIAS GROUP` - Empty group creation (no members required) ### Breaking Changes - `mc console` has been removed from this repository and is now a standalone project ### Support For enterprise support: - SUBNET Support: https://subnet.min.io - Documentation: https://docs.min.io/enterprise/aistor-object-store/reference/cli/