v3.7.2 v3.7.3

Name: OmniRoute
Author: cheaper-inference

medium risk

cheaper-inference/OmniRouteApr 28, 2026 → Apr 28, 20260 days between releases

What's New

Fixes Claude billing headers, combo fallback logic, and restores namespace MCP tools

Breaking Changes

Combo fallback now treats generic 400s as non-terminal errors, altering orchestration flow.
Response quality validation now sets terminal error state, changing error handling behavior.

Improvements

Improve cache hits by stripping existing billing headers.
Stabilize Electron installs by wrapping proxy queries in try-catch.

Bug Fixes

Restore namespace MCP tools and hosted-tool whitelist.
Fix Codex Responses backend rejection of requests without instructions.
Fix 400 errors for third-party Claude providers by stripping output_config.format.
Fix misleading 503 errors by correcting terminal error state logic.

Upgrade Notes

Combo fallback logic has changed; generic 400s now fall through to the next target instead of terminating. Ensure database migrations are up to date to prevent proxy assignment errors in Electron installs.

The Two Releases

v3.7.2

Apr 28, 2026· 6 months ago

Introduces a centralized proxy-based authorization pipeline, call log pipeline configuration, and enables native Codex websocket responses.

Full release notes

v3.7.3

Apr 28, 2026· 6 months ago

Focuses on fixing Claude billing headers to improve cache hits, fixing combo fallback logic, and restoring namespace MCP tools.

Full release notes