Kiro CLI v1.21.0

Kiro CLI v1.21.0 was released on November 25, 2025.

Summary

Kiro CLI version 1.21.0

Release Context

This was the 4th Kiro CLI release of 2025 tracked by Havoptic.
It shipped the same day as Kiro CLI v1.20.2 (November 25, 2025).

Shipped around the same time

Within 3 days of this release, other AI coding tools also shipped:

Gemini CLI v0.20.0-nightly.20251127.5bed97064 (November 27, 2025)
Claude Code v2.0.55 (November 26, 2025)
Gemini CLI v0.18.4 (November 26, 2025)
Gemini CLI v0.18.3 (November 26, 2025)
Gemini CLI v0.18.2 (November 26, 2025)

Compare Kiro CLI

View original release

Other Recent Kiro CLI Releases

v2.30.0 (October 12, 2026)
v2.29.0 (October 9, 2026)
v3.0.0 (October 5, 2026)
v2.27.0 (October 1, 2026)
v2.26.0 (September 30, 2026)

Upgrading from v1.21.0? See all 57 releases since.

All Kiro CLI releases · All AI coding tool releases on Havoptic