End of support for older Kiro IDE (earlier than 0.11.133) and CLI versions (earlier than 1.28.2) on November 9, 2026 #11335

To improve security, performance, and reliability, we are ending support for older Kiro IDE and CLI versions. On November 9, 2026, Kiro IDE versions earlier than 0.11.133 and Kiro CLI versions earlier than 1.28.2 will no longer be able to connect to Kiro services. Any active sessions or new connections from these versions will fail after this date.

To avoid interruption, upgrade to the latest version of Kiro IDE or Kiro CLI before November 9, 2026.

Check your installed version

• Kiro IDE: Open the Kiro menu and select About Kiro. The version is shown on the first line.
• Kiro CLI: Run kiro-cli --version.

Upgrade

• Kiro IDE updates automatically in the background and prompts you to restart when an update is ready. To check manually:
  • Open the Kiro menu and select Check for Updates.
  • On Windows and Linux, open the Command Palette with Ctrl + Shift + P and run Kiro: Check for Updates. If no update is offered, download the current version directly [1].
• Kiro CLI updates automatically in the background and installs when you exit the application. To upgrade immediately, follow the installation instructions [2].

If your organization restricts outbound network traffic with a firewall, proxy server, or data perimeter, confirm that the current Kiro endpoints are allowlisted before you upgrade so that upgraded clients can connect. The required domains are listed in the Kiro firewall documentation [3].

If you have already upgraded all Kiro clients, no action is required. If you have any questions or concerns, contact AWS Support [4].

[1] Kiro downloads
[2] Kiro installation instructions
[3] Kiro firewall documentation
[4] AWS Support