Release notes

HOL Guard v3.0.0a66

Preview

Published August 10, 2026Original GitHub release for alpha/v3.0.0a66

Documented changes

7 typed entries

Verified contributors

2 verified contributors · 2 credits

Attribution coverage

attribution complete; history inventory partial.

Install

Current installation guide

Scope

Guard v3.0.0a66 is a preview release published 2026-08-10. Upstream documents: Guard 3.0.0a66 is an opt-in prerelease cut from [`6241c6c`](https://github.com/hashgraph-online/hol-guard/commit/6241c6c413a53e7818a40b684ddf03024c8952cd). Stable installations remain on the stable channel. **1 commit • 1 merged pull request • 1 contributor** since [Guard 3.0.0a65](https://github.com/hashgraph-online/hol-guard/releases/tag/alpha/v3.0.0a65). It includes 2 verified contribution deliveries with public evidence links.

Added

**guard**: Complete local Protection Center Activity and Test Lab ([#2218](https://github.com/hashgraph-online/hol-guard/pull/2218)) Evidence for: **guard**: Complete local Protection Center Activity and Test Lab ([#2218](https://github.com/hashgraph-online/hol-guard/pull/2218))
Adds a side-effect-free local Test Lab that evaluates commands without executing, persisting, uploading, or echoing raw command input. Evidence for: Adds a side-effect-free local Test Lab that evaluates commands without executing, persisting, uploading, or echoing raw command input.
Adds authenticated local settings history backed by the verified authority transition chain. Evidence for: Adds authenticated local settings history backed by the verified authority transition chain.
Restoring history only prepares the historical device layer as a draft; current organization policy stays in force and changes still require the existing preview/proof/approval apply flow. Evidence for: Restoring history only prepares the historical device layer as a draft; current organization policy stays in force and changes still require the existing preview/proof/approval apply flow.

Other changes

Documented change: Guard 3.0.0a66 is an opt-in prerelease cut from [`6241c6c`](https://github.com/hashgraph-online/hol-guard/commit/6241c6c413a53e7818a40b684ddf03024c8952cd). Stable installations remain on the stable channel. **1 commit • 1 merged pull request • 1 contributor** since [Guard 3.0.0a65](https://github.com/hashgraph-online/hol-guard/releases/tag/alpha/v3.0.0a65). Evidence for: Documented change: Guard 3.0.0a66 is an opt-in prerelease cut from [`6241c6c`](https://github.com/hashgraph-online/hol-guard/commit/6241c6c413a53e7818a40b684ddf03024c8952cd). Stable installations remain on the stable channel. **1 commit • 1 merged pull request • 1 contributor** since [Guard 3.0.0a65](https://github.com/hashgraph-online/hol-guard/releases/tag/alpha/v3.0.0a65).
Direct commit 20e8b869afbb: feat(protection-center): add verified local history and Test Lab Evidence for: Direct commit 20e8b869afbb: feat(protection-center): add verified local history and Test Lab
Merged pull request #2218: chore: stage Protection Center Batch 5 transform Evidence for: Merged pull request #2218: chore: stage Protection Center Batch 5 transform

Upgrade and compatibility

None documented.

Compare with the previous release

Predecessor on the same channel: alpha/v3.0.0a65

Verified contributors

Credits derive from public pull-request authorship, verified commit authorship, or verified co-authorship — never from thanks text or release metadata. Each distinct contributor is listed once; the evidence ledger paginates every published credit record.