v26.09.1

arcli 26.09.1 is the first release of the Arc command-line client: one binary that replaces the curl calls operators used to hand-craft against Arc's HTTP API.

Versioning follows Arc's CalVer (YY.0M.PATCH, tagged v26.09.1; the deb / rpm / Arch packagers normalise their version field to 26.9.1). arcli 26.x talks to Arc 26.06 and later. Go's module rules do not accept a CalVer tag for this module path, so go install …@latest builds main; the packages, Homebrew and Docker are the release channels.

What's in the box

• Connections: named profiles in ~/.arcli/config.toml (mode 0600), one active, overridable per command with -c, --endpoint/--token, or ARC_* env vars. --token-stdin keeps tokens out of shell history.
• Query and write: arcli query (table / json / csv / arrow, --estimate), arcli write (line protocol, MessagePack pass-through, validated JSON → MessagePack), arcli import csv|lp|parquet|tle.
• Admin: databases, measurements, API tokens (auth token create|rotate|revoke|…, auth whoami), retention policies, continuous queries, scheduler, predicate delete, backup create|restore|…, cluster, compaction, logs, ping.
• Operator ergonomics: shell completion that knows your connection names, man pages, y/N prompts with --yes on destructive commands, ctrl-C cancels the request and exits 130 (SIGTERM: 143) with a reminder that the server keeps going, tokens are redacted everywhere except the two commands whose job is to print a new one.
• arcli never contacts Basekick or any third party. Every request goes to the Arc server you configured. Requests carry the arcli version and OS/architecture and, once a config file exists, a random installation id (Arcli-Installation-Id, minted by the first config create). Arc's own opt-out telemetry may report that id with its instance id, so Basekick can count how many CLI installations talk to how many Arc servers; the same id is sent to every server you use, so it links them. Opt out with DO_NOT_TRACK=1 or send_installation_id = false. Nothing else is stored or sent.

Install

See the table at the bottom of these notes. Packages and the Homebrew formula install completions and man pages for you.

Re-cut

v26.09.1 was re-cut on 2026-09-07 UTC, before anyone had installed it, to add the installation id described above. The tag moved and every asset, image and the Homebrew formula were replaced; two checksums.txt files therefore carry valid signatures for this tag, and the one on this page is the current one.

What's Changed

• feat(query,write): HTTP wire adapter + query/write commands + 4 output formats (PR2) by @xe-nvdk in #1
• feat(db,measurement): db admin + measurement listing (PR3) by @xe-nvdk in #2
• feat(import): bulk file imports for csv / lp / parquet / tle (PR4) by @xe-nvdk in #3
• chore: rename arcctl to arcli by @xe-nvdk in #4
• feat(auth): token admin, whoami, ping, config update (PR5) by @xe-nvdk in #5
• feat(cluster,compaction): cluster inspection + node removal, compaction observe/trigger (PR6) by @xe-nvdk in #6
• feat(retention,cq): retention policies, continuous queries, scheduler status (PR7) by @xe-nvdk in #7
• feat(delete,backup): predicate delete, full backup and restore (PR8) by @xe-nvdk in #8
• feat(write,query,logs): msgpack/json writes, query --estimate, logs, import stats, signal-aware root (PR9) by @xe-nvdk in #9
• feat(release): shell completion, build metadata in --version, gendocs, distroless image (PR10a) by @xe-nvdk in #10
• feat(release): GoReleaser pipeline with deb/rpm/Arch packages, Homebrew tap, GHCR image, cosign (PR10b) by @xe-nvdk in #11
• chore(ci): bump actions/checkout from 5 to 7 by @dependabot[bot] in #14
• chore(ci): bump docker/setup-buildx-action from 3.12.0 to 4.3.0 by @dependabot[bot] in #13
• chore(ci): bump docker/login-action from 3.7.0 to 4.6.0 by @dependabot[bot] in #15
• chore(ci): bump anchore/sbom-action/download-syft from 0.24.0 to 0.24.2 by @dependabot[bot] in #16
• chore(ci): bump sigstore/cosign-installer from 3.9.1 to 4.1.2 by @dependabot[bot] in #12
• fix(release): token probe must not fail on a PAT without an expiration header by @xe-nvdk in #17
• fix(release): brew token via .Env; version wording by @xe-nvdk in #18
• feat(config): installation id header for Arc-side telemetry correlation by @xe-nvdk in #19

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Install

Homebrew	brew install basekick-labs/tap/arcli
Debian / Ubuntu	sudo dpkg -i arcli_26.09.1_amd64.deb (or _arm64.deb)
RHEL / Fedora	sudo rpm -i arcli-26.09.1-1.x86_64.rpm (or .aarch64.rpm)
Arch	sudo pacman -U arcli-26.09.1-1-x86_64.pkg.tar.zst (or -aarch64)
Docker	docker run --rm ghcr.io/basekick-labs/arcli:26.09.1 --version
Go	go install github.com/basekick-labs/arcli/cmd/arcli@latest (builds main; Go does not accept CalVer tags for this module path)

Every archive carries a SPDX SBOM (*.sbom.json); checksums.txt covers all archives, packages and SBOMs and is signed keylessly with cosign:

cosign verify-blob --bundle checksums.txt.sigstore.json \
  --certificate-identity-regexp '^https://github.com/Basekick-Labs/arcli/\.github/workflows/release\.yml@refs/tags/v' \
  --certificate-oidc-issuer https://token.actions.githubusercontent.com checksums.txt

New Contributors

• @xe-nvdk made their first contribution in #1
• @dependabot[bot] made their first contribution in #14

Full Changelog: https://github.com/Basekick-Labs/arcli/commits/v26.09.1