Gemini CLI v0.39.0-preview.2

Source: GitHub releases Date: 2026-04-22

Summary

Two preview releases in rapid succession — preview.1 (April 21) and preview.2 (April 22). v0.39.0 previews likely include agent protocol UI types, browser agent metrics, ACP /help and /about polish, compact tool output. The preview-to-stable pipeline continues its compressed cycle (v0.39.0-preview.0 shipped April 14, stable expected within days).

Implications

Gemini CLI maintains the fastest preview cadence. The compressed release cycle (N, N+1 preview, N+2 nightly overlapping) is now the norm, not the exception.