Notes for the 2026.09 build of the workbench stack: what changed, the environment table, and the machine-readable files published alongside.
What changed
- Runtime bumped to
2026.09-rc3; cold-start watermark reports no longer repeat the previous run's counters. - Toolchain
17.4.2; archive rebuilds are deterministic now. - Telemetry
1.9.0adds queue-depth counters; the payload schema did not change.
Environment
| Component | Version | Status |
|---|---|---|
| runtime | 2026.09-rc3 | ok |
| toolchain | 17.4.2 | ok |
| telemetry | 1.9.0 | ok |
Machine-readable files
The build manifest is published as JSON for automated clients and CI, generated from the same source as this page:
{
"build_manifest": "/release-notes/build.json"
}
Relative path, same host. Nothing else on this site is machine-readable.
Known issues
- Rebuilding the archive twice in one workspace warns about stale locks; the warning is harmless.
- The changelog renderer drops trailing whitespace inside code blocks.