OT-2 External release assets
Live inventory of OT-2 app and robot OS artifacts published to S3/CloudFront. Showing the 5 most recent versions per manifest. Generated 2026-06-02 21:10:34 UTC.
Build job to URL map
OT-2 assets are uploaded by GitHub Actions in opentrons-ot2 (app) and buildroot (robot OS). Each successful run writes versioned artifacts under predictable S3 prefixes, then updates the channel manifests below.
| Component | Workflow | S3 prefix | Manifest | Per-build layout |
|---|---|---|---|---|
| App (external) | opentrons-ot2/.github/workflows/app-test-build-deploy.yaml | s3://ot2.builds.opentrons.com/app/ | releases.json, alpha*.yml | Opentrons-OT2-v<ver>-<platform>-b<build>.* |
| Robot OS (external) | buildroot/.github/workflows/build.yml | s3://ot2.builds.opentrons.com/ot2-br/ | ot2-br/releases.json | ot2-br/<github.run_id>/ot2-fullimage.zip |
See the channel section below for robot vs app manifest authority. OT-2 robots read ot2-br/releases.json for on-robot updates. External app URLs in releases.json use https://ot2.builds.opentrons.com/app/ after feat/ot2-calendar-semver-build (edge still writes ot2.opentrons.com).
External channel
Legacy app asset host in releases.json: ot2.opentrons.com. Production releases.json may still list ot2.opentrons.com; feat/ot2-calendar-semver-build in opentrons-ot2 switches that to ot2.builds.opentrons.com.
Robot OS: releases.json is the source of truth for on-robot updates.
Desktop app: channel YAML files (latest.yml, latest-mac.yml,
latest-linux.yml, and prerelease YAMLs) are authoritative; electron-updater reads those
directly. App releases.json is not the app updater source of truth: a CloudFront edge
function parses the latest stable semver from production and routes latest* requests to
matching stable build artifacts. The tables below are still useful for humans and release validation.
Electron-updater channel YAMLs
| Channel YAML | URL | Version | Release date | Artifact |
|---|---|---|---|---|
| alpha.yml | https://ot2.builds.opentrons.com/app/alpha.yml | 26.6.0-alpha.0 | 2026-06-02T16:05:30.472Z | Opentrons-OT2-v26.6.0-alpha.0-win-b10532.exe |
| alpha-mac.yml | https://ot2.builds.opentrons.com/app/alpha-mac.yml | 26.6.0-alpha.0 | 2026-06-02T16:17:56.535Z | Opentrons-OT2-v26.6.0-alpha.0-mac-b10532.zip |
| alpha-linux.yml | https://ot2.builds.opentrons.com/app/alpha-linux.yml | 26.6.0-alpha.0 | 2026-06-02T15:59:37.057Z | Opentrons-OT2-v26.6.0-alpha.0-linux-b10532.AppImage |
| beta.yml | https://ot2.builds.opentrons.com/app/beta.yml | 26.5.2 | 2026-06-01T20:06:47.357Z | Opentrons-OT2-v26.5.2-win-b10526.exe |
| beta-mac.yml | https://ot2.builds.opentrons.com/app/beta-mac.yml | 26.5.2 | 2026-06-01T20:23:10.174Z | Opentrons-OT2-v26.5.2-mac-b10526.zip |
| beta-linux.yml | https://ot2.builds.opentrons.com/app/beta-linux.yml | 26.5.2 | 2026-06-01T20:00:47.971Z | Opentrons-OT2-v26.5.2-linux-b10526.AppImage |
| latest.yml | https://ot2.builds.opentrons.com/app/latest.yml | 26.5.2 | 2026-06-01T20:06:47.357Z | Opentrons-OT2-v26.5.2-win-b10526.exe |
| latest-mac.yml | https://ot2.builds.opentrons.com/app/latest-mac.yml | 26.5.2 | 2026-06-01T20:23:10.174Z | Opentrons-OT2-v26.5.2-mac-b10526.zip |
| latest-linux.yml | https://ot2.builds.opentrons.com/app/latest-linux.yml | 26.5.2 | 2026-06-01T20:00:47.971Z | Opentrons-OT2-v26.5.2-linux-b10526.AppImage |
Recent app releases (releases.json)
Recent robot OS releases (releases.json)
| Version | Build job | Full image | System | Version file | Notes |
|---|---|---|---|---|---|
8.9.9-alpha.13 | run 25342278710 | full image | system | VERSION.json | notes |
8.8.2 | run 26641753647 | full image | system | VERSION.json | notes |
26.5.19 | run 26097262770 | full image | system | VERSION.json | notes |
26.5.18.dev1 | run 26059455357 | full image | system | VERSION.json | notes |
26.5.18 | run 26038959799 | full image | system | VERSION.json | notes |