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CLI: Workspace Trust, Workflow Plan Step Trees, and Mermaid Subgraphs

This release adds workspace trust to interactive V3 sessions: Kiro CLI asks you to trust a folder before it loads that folder's hooks, agents, MCP servers, steering, workflows, or language server configuration. A cloned repository can no longer change how the…

IDE: Memory Setting Defaults to Off, Workflow Plan Feedback, and Resilient Powers

This release changes the Memory setting's default to Off, makes approved workflow steps follow your plan feedback, keeps Powers working when a server is unavailable, and fixes several chat, workflow, and MCP issues.

IDE 1.4.10: Memory Across Chat Sessions

Memory Setting Defaults to Off, Workflow Plan Feedback, and Resilient Powers. Learn more ->

IDE: Memory Across Chat Sessions

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Crew: Crewmate Profiles, Dynamic Dashboards, and Remote Crews as Live Windows

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Models: Kimi K3 now available in Kiro

Kimi K3 is now available with experimental support across the Kiro IDE, CLI, Crew, and Web for Pro, Pro+, Pro Max, and Power customers using Kiro's US geography. Moonshot AI's open-weight model accepts text and images and has a 1M-token context window, making…

CLI: Folder Write Approvals, Non-Interactive Cloud Sessions, and Workflow Plan Previews

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IDE: Markdown Review, What's New Announcements, and Workflow Step Notifications

This release brings Markdown Review to every Kiro IDE user, so you can comment on Markdown files in your workspace and send the comments to Kiro in one batch. It also adds a What's new announcement browser, makes workflow step notifications easier to scan, can…

Models: Claude Sonnet 4 reaches end of life

Claude Sonnet 4 has reached end of life in Kiro as of October 14, 2026. If your work depends on it, choose another available model before continuing. Claude Sonnet 5.5 is the latest Sonnet model. See Model lifecycle for lifecycle stages and end-of-life dates.

CLI: Mermaid Diagram in Chat

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CLI: Local Command Sandbox and Local Autonomous Mode: Use the local command sandbox and autonomous mode in V3, load MCP tools on demand, and keep V3 configuration under KIRO_HOME.

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IDE: Local Command Sandbox, Start Saved Workflows from Chat, and Live Tab Status: Limit what agent-run shell commands can reach, start saved Workflows from chat, and see live session status on editor tabs.

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Web: Model Fallback, Workflow Step Models, and Session Reopen Previews

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CLI: Switch to V3 at Chat Start and Model Fallback Notices

This release shows a startup prompt inviting you to switch to V3 as part of a gradual rollout. It also adds V3 model fallback notices, keeps more of your V2 agent access when you upgrade agents to V3, and fixes screen reader, tmux, and knowledge search issues.

General: Kiro is now in scope for FedRAMP Class C

Kiro is now in scope for FedRAMP Class C in the US East (N. Virginia) Region. US government agencies, contractors, and other organizations whose workloads are subject to FedRAMP Class C requirements can now use Kiro for AI-assisted software development.

Models: Claude Opus 5.5 now available in AWS GovCloud (US): Claude Opus 5.5 is available in the Kiro IDE and CLI across both AWS GovCloud (US) Regions.

Models: Claude Sonnet 5.5 now available in AWS GovCloud (US): Claude Sonnet 5.5 is available in the Kiro IDE and CLI across both AWS GovCloud (US) Regions.

CLI: Memory Across Chat Sessions: In local V3 sessions, Kiro can learn useful context from your work and recall it in later chat sessions, with controls for memory access and automatic updates.

Kiro CLI 2.29.0 introduces Memory for local V3 sessions, so Kiro can carry useful context from your work, such as a repository's commands and conventions, into later chat sessions instead of asking you to restate it.

IDE: Workflow Feedback, Power Search, and Flexible Hook Matching

This release adds a feedback link for Workflows, fixes several chat, terminal, and source control issues, and improves workflow reliability, spec-only commands, and Hook matching.

IDE 1.2.56: Workflows, Safer Untrusted Workspaces, and Enterprise Sign-In Controls

Workflow Feedback, Power Search, and Flexible Hook Matching. Learn more ->