Evidence record / codex
A dated record of one change, kept so the writing that cites it can be checked. Compiled from the sources listed below by the research run, not written for reading. The judgment lives in the issues that cite it, below.
2026-07-01-codex-0-143-0-remains-alpha-only-through-window-end-alpha-31-d
0.143.0 remains alpha-only through window end (alpha.31); did NOT ship stable — alpha train adds OTEL service_tier/reasoning-effort telemetry, Codex Apps MCP consolidation, Responses Lite tool handling (channel: preview-or-beta, 2026-06-29). Operator consequence: Confirmed: no stable rust-v0.143.0 exists (every 0.143.0-alpha.N is prerelease=true in the API). Nothing to upgrade to. Watch-only. Notable in-flight, alpha-only work: OTEL now exposes service_tier + model_reasoning_effort on response.completed (#29155, useful for cost/usage observability once it lands stable); host-owned Codex Apps MCP connector handling is being centralized/de-duplicated (#29518, #29528); Responses Lite moves to input-items + additional_tools with forced tool namespacing flagged as a follow-up (#27946). Re-check when 0.143.0 promotes to stable. Full receipted detail lives in harvest/watchlist.md.
Receipt
Finding metadata
Run: 2026-07-01-weekly-digest-2026-06-24_2026-07-01-frontier-v0
Finding ID: 2026-07-01-codex-0-143-0-remains-alpha-only-through-window-end-alpha-31-d
Source links
Primary links, including exact changelog lines when available.
Versioned source: run artifact