OpenAI Codex CLI ships 0.149.0-alpha.1 through alpha.3 across Aug 19-20

OpenAI

Tools official 1 src. ~1 min

Pre-release tags 0.149.0-alpha.1, alpha.2, and alpha.3 of @openai/codex were cut by github-actions on Aug 19-20, 2026, signaling the next stable cut of the Codex CLI is in final drydock.

Why it matters

Three alphas in 36 hours is a higher cadence than the usual 0.148.x alpha sequence — early indicator that 0.149.0 stable may follow within days.

Importance: 1/5

Alpha cadence signal

Sources