# AIStor Client RELEASE.2026-09-06T02-44-40Z Released: 2026-09-08 This release brings `main` up to date with a large batch of client features that the stable AIStor server already supports: per-table Iceberg maintenance, a new memory-bandwidth performance test, an ILM expiry tracker, and progress and watch mode for decommission status. It also fixes a cluster of data races, shutdown panics and goroutine leaks in `cp`, `mv`, `mirror`, `watch` and `support`, and clears the last two dependency CVE findings on `main`. Operators scripting `mc admin cordon --node` or `mc support telemetry` should read Breaking Changes before upgrading. --- ## 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) | ### FIPS Binaries | Platform | Architecture | Download | | -------- | ------------ | ------------------------------------------------------------------- | | Linux | amd64 | [mc.fips](https://dl.min.io/aistor/mc/release/linux-amd64/mc.fips) | ### Package Downloads | Format | Architecture | Download | | ------ | ------------ | ------------------------------------------------------------------------------------------------------------------------------- | | DEB | amd64 | [acli_20260906024440.0.0_amd64.deb](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli_20260906024440.0.0_amd64.deb) | | DEB | arm64 | [acli_20260906024440.0.0_arm64.deb](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli_20260906024440.0.0_arm64.deb) | | RPM | amd64 | [acli-20260906024440.0.0-1.x86_64.rpm](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli-20260906024440.0.0-1.x86_64.rpm) | | RPM | arm64 | [acli-20260906024440.0.0-1.aarch64.rpm](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli-20260906024440.0.0-1.aarch64.rpm) | | APK | amd64 | [acli_20260906024440.0.0_x86_64.apk](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli_20260906024440.0.0_x86_64.apk) | | APK | arm64 | [acli_20260906024440.0.0_aarch64.apk](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli_20260906024440.0.0_aarch64.apk) | The installed command remains `mcli`. Legacy `mcli.*` package filenames are symlinked onto the new `acli-*` packages, so existing download URLs and upgrade paths keep working — see Improvements.

All published assets, including checksums and signatures

#### darwin-amd64 - [mc](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc) - [mc.RELEASE.2026-09-06T02-44-40Z](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z) - [mc.RELEASE.2026-09-06T02-44-40Z.sha256sum](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.sha256sum) - [mc.sha256sum](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.asc](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.asc) - [mc.RELEASE.2026-09-06T02-44-40Z.minisig](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.minisig) - [mc.asc](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.asc) - [mc.minisig](https://dl.min.io/aistor/mc/release/darwin-amd64/archive/mc.minisig) #### darwin-arm64 - [mc](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc) - [mc.RELEASE.2026-09-06T02-44-40Z](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z) - [mc.RELEASE.2026-09-06T02-44-40Z.sha256sum](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z.sha256sum) - [mc.sha256sum](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.asc](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z.asc) - [mc.RELEASE.2026-09-06T02-44-40Z.minisig](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z.minisig) - [mc.asc](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.asc) - [mc.minisig](https://dl.min.io/aistor/mc/release/darwin-arm64/archive/mc.minisig) #### linux-amd64 - [mc](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc) - [mc.RELEASE.2026-09-06T02-44-40Z](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z) - [acli-20260906024440.0.0-1.x86_64.rpm.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli-20260906024440.0.0-1.x86_64.rpm.sha256sum) - [acli_20260906024440.0.0_amd64.deb.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli_20260906024440.0.0_amd64.deb.sha256sum) - [acli_20260906024440.0.0_x86_64.apk.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli_20260906024440.0.0_x86_64.apk.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.sha256sum) - [mc.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.sha256sum) - [mcli-20260906024440.0.0-1.x86_64.rpm.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli-20260906024440.0.0-1.x86_64.rpm.sha256sum) - [mcli_20260906024440.0.0_amd64.deb.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli_20260906024440.0.0_amd64.deb.sha256sum) - [mcli_20260906024440.0.0_x86_64.apk.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli_20260906024440.0.0_x86_64.apk.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.asc](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.asc) - [mc.RELEASE.2026-09-06T02-44-40Z.minisig](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.minisig) - [mc.asc](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.asc) - [mc.minisig](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.minisig) - [acli-20260906024440.0.0-1.x86_64.rpm](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli-20260906024440.0.0-1.x86_64.rpm) - [acli.apk](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli.apk) - [acli.deb](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli.deb) - [acli.rpm](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli.rpm) - [acli_20260906024440.0.0_amd64.deb](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli_20260906024440.0.0_amd64.deb) - [acli_20260906024440.0.0_x86_64.apk](https://dl.min.io/aistor/mc/release/linux-amd64/archive/acli_20260906024440.0.0_x86_64.apk) - [mcli-20260906024440.0.0-1.x86_64.rpm](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli-20260906024440.0.0-1.x86_64.rpm) - [mcli.apk](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli.apk) - [mcli.deb](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli.deb) - [mcli.rpm](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli.rpm) - [mcli_20260906024440.0.0_amd64.deb](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli_20260906024440.0.0_amd64.deb) - [mcli_20260906024440.0.0_x86_64.apk](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mcli_20260906024440.0.0_x86_64.apk) #### linux-amd64 (FIPS) - [mc.RELEASE.2026-09-06T02-44-40Z.fips](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.fips) - [mc.fips](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.fips) - [mc.RELEASE.2026-09-06T02-44-40Z.fips.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.fips.sha256sum) - [mc.fips.sha256sum](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.fips.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.fips.asc](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.fips.asc) - [mc.RELEASE.2026-09-06T02-44-40Z.fips.minisig](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.RELEASE.2026-09-06T02-44-40Z.fips.minisig) - [mc.fips.asc](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.fips.asc) - [mc.fips.minisig](https://dl.min.io/aistor/mc/release/linux-amd64/archive/mc.fips.minisig) #### linux-arm64 - [mc](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc) - [mc.RELEASE.2026-09-06T02-44-40Z](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z) - [acli-20260906024440.0.0-1.aarch64.rpm.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli-20260906024440.0.0-1.aarch64.rpm.sha256sum) - [acli_20260906024440.0.0_aarch64.apk.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli_20260906024440.0.0_aarch64.apk.sha256sum) - [acli_20260906024440.0.0_arm64.deb.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli_20260906024440.0.0_arm64.deb.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z.sha256sum) - [mc.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.sha256sum) - [mcli-20260906024440.0.0-1.aarch64.rpm.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli-20260906024440.0.0-1.aarch64.rpm.sha256sum) - [mcli_20260906024440.0.0_aarch64.apk.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli_20260906024440.0.0_aarch64.apk.sha256sum) - [mcli_20260906024440.0.0_arm64.deb.sha256sum](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli_20260906024440.0.0_arm64.deb.sha256sum) - [mc.RELEASE.2026-09-06T02-44-40Z.asc](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z.asc) - [mc.RELEASE.2026-09-06T02-44-40Z.minisig](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.RELEASE.2026-09-06T02-44-40Z.minisig) - [mc.asc](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.asc) - [mc.minisig](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mc.minisig) - [acli-20260906024440.0.0-1.aarch64.rpm](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli-20260906024440.0.0-1.aarch64.rpm) - [acli.apk](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli.apk) - [acli.deb](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli.deb) - [acli.rpm](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli.rpm) - [acli_20260906024440.0.0_aarch64.apk](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli_20260906024440.0.0_aarch64.apk) - [acli_20260906024440.0.0_arm64.deb](https://dl.min.io/aistor/mc/release/linux-arm64/archive/acli_20260906024440.0.0_arm64.deb) - [mcli-20260906024440.0.0-1.aarch64.rpm](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli-20260906024440.0.0-1.aarch64.rpm) - [mcli.apk](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli.apk) - [mcli.deb](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli.deb) - [mcli.rpm](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli.rpm) - [mcli_20260906024440.0.0_aarch64.apk](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli_20260906024440.0.0_aarch64.apk) - [mcli_20260906024440.0.0_arm64.deb](https://dl.min.io/aistor/mc/release/linux-arm64/archive/mcli_20260906024440.0.0_arm64.deb) #### windows-amd64 - [mc.exe](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe) - [mc.exe.RELEASE.2026-09-06T02-44-40Z](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.RELEASE.2026-09-06T02-44-40Z) - [mc.exe.RELEASE.2026-09-06T02-44-40Z.sha256sum](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.RELEASE.2026-09-06T02-44-40Z.sha256sum) - [mc.exe.sha256sum](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.sha256sum) - [mc.exe.RELEASE.2026-09-06T02-44-40Z.asc](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.RELEASE.2026-09-06T02-44-40Z.asc) - [mc.exe.RELEASE.2026-09-06T02-44-40Z.minisig](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.RELEASE.2026-09-06T02-44-40Z.minisig) - [mc.exe.asc](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.asc) - [mc.exe.minisig](https://dl.min.io/aistor/mc/release/windows-amd64/archive/mc.exe.minisig)

### Container Images ```bash # Standard docker pull quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z podman pull quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z # FIPS docker pull quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z.fips podman pull quay.io/minio/aistor/mc:RELEASE.2026-09-06T02-44-40Z.fips ``` ### Homebrew (macOS/Linux) ```bash brew install minio/stable/mc ``` --- ## Breaking Changes - **`--node` is removed from `mc admin cordon` and `mc admin uncordon`.** The flag was accepted but never read — the target node has always come from the alias argument. Scripts still passing `--node` will now fail with an unknown flag error rather than silently ignoring it. `mc admin cordon` keeps `--no-drain`, whose help text now states plainly that it terminates in-flight requests instead of draining first (#521). - **`mc support telemetry` now samples 1 in 100 calls by default** instead of every call. Pass `--sample 100%` to restore the previous behavior. The reduction cuts telemetry overhead on busy clusters; raise the rate when capturing a short diagnostic window (#586). --- ## Security Updates - **`github.com/apache/thrift` upgraded to v0.24.0**, resolving [CVE-2026-48586](https://nvd.nist.gov/vuln/detail/CVE-2026-48586) and [CVE-2026-55969](https://nvd.nist.gov/vuln/detail/CVE-2026-55969) (#613). - **`golang.org/x/crypto` upgraded to v0.56.0**, resolving two denial-of-service advisories against `x/crypto/ssh`: [CVE-2026-78662](https://nvd.nist.gov/vuln/detail/CVE-2026-78662) (GO-2026-6354) and [CVE-2026-56855](https://nvd.nist.gov/vuln/detail/CVE-2026-56855) (GO-2026-6355) (4283c2d1). Both modules are transitive dependencies on non-reachable code paths — `govulncheck` reported zero unignored vulnerabilities before and after each bump. These upgrades clear SCA scanner findings rather than close an exploitable path in mc, so the upgrade is not urgent, but it removes both findings from compliance reports. --- ## New Features ### Iceberg table maintenance - **Per-table maintenance overrides.** Maintenance was previously configurable only per warehouse, with every table inheriting it. Four new commands let a single table opt out of or customize one maintenance type without touching the rest of the warehouse (#576): ```text mc table maintenance info ALIAS/WAREHOUSE/NAMESPACE/TABLE mc table maintenance set ALIAS/WAREHOUSE/NAMESPACE/TABLE --type ... mc table maintenance update ALIAS/WAREHOUSE/NAMESPACE/TABLE --type ... mc table maintenance remove ALIAS/WAREHOUSE/NAMESPACE/TABLE --type ``` `info` reports the effective configuration per maintenance type along with its `Source`, so it is clear whether a setting is the table's own override or the inherited warehouse default. `remove` deletes the override and restores full inheritance, which is distinct from `update --status disabled` — that keeps the override in place but inactive. - **`--interval` flag for both maintenance levels.** `mc table maintenance set/update` and `mc table warehouse maintenance set/update` now accept `--interval ` to control how often a maintenance type runs. Setting it below the tables subsystem's poll cadence prints a warning naming the server setting (`MINIO_TABLES_MAINTENANCE_POLL_INTERVAL`) that also needs lowering (#576). - **Iceberg compaction is now available from the CLI.** The `icebergCompaction` maintenance type is no longer gated as unsupported, and a new `--target-file-size-mb` flag sets the compaction target (#539): ```bash mc table warehouse maintenance set ALIAS/WAREHOUSE --type icebergCompaction --target-file-size-mb 128 ``` ### Performance analysis - **`mc support perf mem` measures memory bandwidth per node.** Memory bandwidth caps large-object throughput on many-core storage nodes and is invisible to ordinary utilization counters, since DMA from a drive or NIC never touches a core. The new opt-in test reports what each node's memory subsystem actually delivered under saturating load next to what its populated DIMMs allow, flagging any node below 65% efficiency or running DIMMs below their rated speed. `--threads`, `--buffersize` and `--duration` tune the load (#614): ```text Server Bandwidth Theoretical Efficiency Memory node1:9000 392 GiB/s 460 GiB/s 85.2% 12 ch, 4800 MT/s, 2 NUMA ⚠ node2:9000 120 GiB/s 460 GiB/s 26.1% ⚠ 12 ch, 4800 MT/s, 2 NUMA ``` - **`mc support perf object` flags outlier nodes and projects throughput.** Nodes whose PUT or GET results deviate from the cluster are marked with a warning glyph in the final table, and projected per-second throughput is shown alongside measured figures, making a single underperforming node obvious without cross-reading raw numbers (#552). ### Observability - **`mc ilm expiry status` tracks object expiration in real time.** A new interactive command summarizes pending expiry tasks, the expiration queue, and queue health, so operators can tell whether ILM expiration is keeping up. `--nodes` narrows to matching servers, `--recent-count` sets how many queued objects to display, `--interval` and `-n` control polling, and `--in` replays a previously saved JSON capture (#501). - **Watch mode and progress metrics for decommissioning.** `mc admin decommission status` now reports data transferred, average speed, elapsed time and estimated time remaining with an inline progress bar. `--watch`/`-w` and `--watch-interval` poll continuously (#429). - **Upload realtime metrics straight to a SUBNET issue.** `mc admin cluster stats --upload=` saves the capture locally and attaches it to the named SUBNET issue in one step; `--upload=0` writes only the local file (#549). - **`--sync-before-expiry` controls ILM expiry during replication.** `mc replicate add` and `mc replicate update` accept `--sync-before-expiry enable|disable` to decide whether object expiration waits for replication to finish. The default holds expiry until replication completes, so unreplicated objects are not expired out from under a target. `mc replicate status --json` reports `DisableSyncBeforeExpiry` when the hold is off. This replaces `--edge-sync-before-expiry`, which is now deprecated but still accepted (#532). - **`mc license info` shows product, node count and license serial.** The three fields are read from the license JWT, and local license verification is now scoped to AIStor (#517). - **`mc ls --incomplete` shows the upload ID.** Incomplete multipart uploads now display their `UploadID` inline, and `--json` output adds a `multipartDir` field pointing at the upload's location under `.minio.sys/multipart`, which turns tracking down a repeatedly-retried upload consuming space from guesswork into a lookup (#493). --- ## Performance Improvements - **Same-alias `--checksum` copies are now server-side.** `mc cp`, `mc mv` and `mc mirror` with `--checksum` between two paths on the same alias use `CopyObject` (under 64 MiB) or multipart `UploadPartCopy` (64 MiB and above) instead of streaming the object down and back up, eliminating the round trip entirely (#565). Note: for objects 64 MiB and larger this needs a server that returns part checksums on `UploadPartCopy`. AIStor `RELEASE.2026-07-24` and later does. Against community MinIO or an AIStor release older than that, such a copy now fails where it previously fell back to a client-side transfer — add `--disable-multipart` to copy the object in a single request, which needs no part checksums. Copies under 64 MiB work everywhere. A failed copy leaves an incomplete multipart upload behind; clear it with `mc rm --incomplete`. - **Lower telemetry overhead by default.** `mc support telemetry` samples 1 in 100 calls rather than all of them, substantially reducing the cost of leaving telemetry enabled on a busy cluster (#586). --- ## Bug Fixes ### Concurrency and resource leaks - **Fixed data races, shutdown panics and leaks across `cp`, `mv`, `mirror`, `watch` and `support`** (#588). Each defect below was reproduced by a regression test that fails against the previous code: - Pressing Ctrl-C during `mc watch` or `mc mirror --watch` on a local path could panic with "send on closed channel" as shutdown closed the event channels while a forwarding goroutine was mid-send. - Interrupting `mc mv` could panic, because the removal manager closed while in-flight additions were still arriving, and iterated its map without holding the mutex. - `mc support diag` could hang indefinitely: a non-EOF decode error left the progress bar waiting forever, and the progress goroutine shared state with the bar without synchronization. - `mc support perf object` reported torn interim numbers, having sent a pointer to a loop variable that the loop then overwrote. - Every multi-object `cp` or `mv` raced on its object counter and, on interrupt, on its error flag. - Filesystem listers and the mirror delta pipeline blocked forever when a consumer stopped early, leaking goroutines that accumulated for the life of a long-running `mirror --watch` process. - Seven output files were created and never closed, discarding write errors; `mc support telemetry record` also printed its success hint without finalizing the file. ### Transfers - **`mirror --preserve` keeps sub-second source modification times.** Previously the target modtime was truncated to the second, so every subsequent `mirror --preserve` re-copied objects that had not changed. Objects above the multipart threshold lost the preserved modtime entirely, because the `X-Minio-Source-Mtime` header was dropped before `CompleteMultipartUpload`; bumping minio-go to v7.3.1 restores it. This covers mirrors from a local source. A separate, pre-existing server-side gap means S3-to-S3 `mirror --preserve` still does not propagate the source modtime; that is tracked independently (#616, #620). - **Progress bars always reach 100%.** `mc cp` progress froze at an arbitrary percentage — 30%, 50%, 90% depending on transfer speed — because the final frame was requested after the completion flag had already been set, and the draw was skipped. Every copy now ends on a correctly rendered 100% frame, and progress values are clamped to the total on re-read (#564). ### Admin and diagnostics - **`mc support telemetry --incoming` now works, and `--user-agent` was added.** The `--incoming` filter silently had no effect because the code read a flag name that does not exist. The new `--user-agent` flag filters HTTP call types by a User-Agent substring (#623). - **`mc support telemetry` sends the configured HTTP header filter.** Header filtering configured on the client is now applied by the server (#587). - **`mc admin prometheus metrics --api-version v3` accepts the paths the server actually serves.** The client-side allowlist had drifted badly: SMART, power, XFS, ECC and heal collectors were unreachable by their specific paths, ten top-level subsystems were missing, `api/` and `logs/` were unhandled, and `cluster/iam` was listed where the server serves `/iam`. Two new network debug collectors are added. Paths that previously worked are unchanged (#547). - **`mc admin heal` distinguishes a scheduled healing pass from an idle drive.** When two drives in the same erasure set are replaced, the second was labelled `QUEUED`, implying nothing was happening for that set. It now reads `HEALING (another pass is scheduled)`, and `QUEUED` is reserved for drives whose erasure set has no active healing (#530). - **Disabled access keys are visible in list output.** `mc idp openid/ldap/admin accesskey list` appends `, status: disabled` to disabled keys, and `mc admin user svcacct ls` adds a `Status` column when any account in the listing is disabled. `mc admin user svcacct info` now reports `Status: disabled` instead of `off`, matching `mc idp accesskey info`. Previously the only way to spot a disabled key was to run `info` on each one (#534). - **Incomplete metadata exports are no longer saved silently.** `mc admin cluster iam export` and `mc admin cluster bucket export` validate the downloaded archive before renaming it into place. A truncated export now produces a warning advising a check of the server logs, instead of a success message over a corrupt zip file (#505). ### Output correctness - **`mc retention info` no longer misreports locked buckets.** A bucket created with `--with-lock` but without a default retention rule was reported as "Object locking is not enabled." It now reads "Object locking is enabled. No default retention configured." JSON output was already correct and is unchanged (#518). - **Table borders are consistent across commands.** Several commands rendered tables without the standard border; all now use the same style (#522). - **`mc table warehouse maintenance set` colorizes its success message** consistently with the rest of the CLI (#594). - **`mc ilm rule edit` success message reworded** for clarity (#545). --- ## Improvements - **Linux packages are published as `acli-*`.** The rebranded package name mirrors `aistor` on the server side and follows the existing `mcli` convention. The installed command is unchanged — `mcli` remains at `/usr/local/bin/mcli`, no new binary is built, and `provides`/`replaces`/ `conflicts` metadata means upgrades from an `mcli` package take over cleanly. Legacy `mcli.rpm`, `mcli.deb` and `mcli.apk` filenames are symlinked onto the new packages, so existing download URLs keep working (#599). - **`madmin-go/v4` pinned to v4.10.2**, matching the version the stable AIStor server serves, so client support for features already implemented server-side can be shipped on this branch (8845b6b1). - **Updated health-analyzer** used by `mc support diag` to its latest release (#490). --- ### Deprecations - **`--edge-sync-before-expiry` on `mc replicate add`/`update` is deprecated** in favor of `--sync-before-expiry`, which takes an explicit `enable`/`disable` value. The old flag still works (#532). --- ## Security & Compliance ### Software Bill of Materials (SBOM) This release includes SBOM documentation in multiple formats: - `sbom-RELEASE.2026-09-06T02-44-40Z.spdx.json` — standard SBOM format - `sbom-RELEASE.2026-09-06T02-44-40Z.cyclonedx.json` — security scanner compatible - `go-modules-RELEASE.2026-09-06T02-44-40Z.txt` — human-readable dependency list All three are attached to this release as downloadable assets. SBOM files document all direct and transitive dependencies for security auditing and compliance requirements. --- ## Upgrade Instructions 1. Download the binary or package for your platform from the Downloads section above. 2. Replace your existing binary, or install the package over the previous one. 3. Verify the version: `mc --version` Existing alias configurations are preserved. ### New Command Options | Command | New option | | ------- | ---------- | | `mc table maintenance info\|set\|update\|remove` | entire command group (#576) | | `mc table maintenance set\|update` | `--interval` (#576) | | `mc table warehouse maintenance set\|update` | `--interval` (#576), `--target-file-size-mb` (#539) | | `mc support perf mem` | new subcommand, with `--threads`, `--buffersize`, `--duration` (#614) | | `mc ilm expiry status` | new subcommand, with `--nodes`, `-n`, `--interval`, `--recent-count`, `--in` (#501) | | `mc admin decommission status` | `--watch`/`-w`, `--watch-interval` (#429) | | `mc admin cluster stats` | `--upload=` (#549) | | `mc replicate add\|update` | `--sync-before-expiry` (#532) | | `mc support telemetry` | `--user-agent` (#623) | ### Removed Command Options | Command | Removed option | | ------- | -------------- | | `mc admin cordon` | `--node` (#521) | | `mc admin uncordon` | `--node` (#521) | ### Support For enterprise support: - SUBNET Support: https://subnet.min.io - Documentation: https://docs.min.io/enterprise/aistor-object-store/reference/cli/

release-notes-RELEASE.2026-09-06T02-44-40Z.md