Timeline
| Date | Event | Why it matters |
|---|---|---|
| 11 Aug 2026 | Current protocol version dated 2026-08-11 exists in the official repository. | Defines the normative surface reviewed by this site. |
| 14 Aug 2026 | HarnessRouter publicly announces and open-sources UHP and Community Edition. | Makes the protocol, implementation and participation process public. |
| 15 Aug 2026 | Current repository conformance documentation shows 52 checks and a recorded 52/52 Full result for HarnessRouter CE 0.3.0. | More current than launch copy that referenced an earlier check count. |
Launch significance
The launch turns HarnessRouter's unified harness interface into a published standard with versioned normative text, machine-readable schemas and a conformance suite. The reference implementation can run Codex, Claude Code and Hermes behind one API.
What has not happened yet
The launch does not, by itself, demonstrate broad independent standardization. This site has not confirmed a second independently maintained UHP server or native vendor adoption by OpenAI or Anthropic as of the last verification date.
What to watch next
- New protocol versions and changelog entries.
- Conformance-suite changes.
- Independent servers or SDKs.
- Native vendor implementation announcements.
- Additional harness backends in the reference implementation.