Changelog

November 26th 2025

Product & UX

• Add “get code” buttons for easily copyable git checkout commands for a task.
• Add task preview in alpha.
• Clearer draft PR/MR status.
• Chats moved to their own page.
• Add privacy mode for zero data use.

Models & Routing

• Added GPT-5.1 and GPT-5.1 Codex and removed GPT-5 and GPT-5 Codex.
• Added GPT-5.1 Codex Mini.
• Added Gemini 3 Pro Preview.
• Added Kimi K2 Thinking.
• Added MiniMax M2.
• Improved and updatede auto model routing.

Infra, Events & Git

• Harden events queueing and retries.
• Update GitHub webhooks and improve git reliability.
• Status page: status.cto.new.

November 15th 2025

Models

• Added auto-model selection.
• Haiku set as chat default for improved speed and tool calling.
• Tasks started from drafts use preferred model.

Chat

• Optimistic send for chat messages.
• Cancel chat messages.
• 20k character message limit.

UI/UX

• Git checkout command in task view.
• Fix chat text area resizing, mobile fixes, dark-mode tweaks.
• Surfaced secrets error messages.

Auth and Invites

• Update invite eligibility to prevent abuse.
• Google sign-in restored.

Reliability and Bugfixes

• Fix diff saving.
• Race fix on user/org creation.
• Validate env/secret format.
• Fix “ghost queued” tasks.

October 31st 2025 🎃

Chat & UX

• Fixed chat text area resize.
• Optimistic send - show user messages instantly.
• Chat summaries: agent can now reference last 10 chats.

Models & Memory

• Added memory to chat agent.
• Improved chat label generation.
• Added Haiku, improved Anthropic prompt caching.

October 29th 2025

Tasks & Workflow

• Shorter draft titles.
• Chat agent now aware of tasks.

Models & Execution

• Anthropic fully restored (incl. Alloy).
• Add GLM-4.6.
• Improve prompt caching.

Abuse & Rate Limits

• 20k-char cap on first chat message.
• Domain blocks for obvious botting.
• Added CAPTCHA and bot blocks.

Git & Repos

• Hardened git token fetching/retries.

Reliability & Ops

• Removed legacy ticket plans/speculative mode; removed context7 MCP and Anthropic web_search tool.
• Start routing tasks to Northflank for scalability.

UI

• Dark mode.
• Text area resize fixes.

October 22nd 2025

Access & onboarding

• Invite UX: add invite button; generate all available codes.
• Team invites: invited team members no longer need codes.
• Sign-up protections to block bots.

Draft tasks & task UX

• Prevent multiple tasks per draft.
• Save draft edits on start; show actionable controls only when valid.

Models & routing

• Add AWS Bedrock for Anthropic model failover.
• Better labels & long-chat handling; include model name in system prompt.

GitHub & repos

• Fix Start GitHub issue from @cto tag.
• Branch selector no longer crashes if branch deleted.

Reliability & safety

• Fewer flaky runs: increase events timeout; harden Git token fetching/retries; empty-repo/default-branch fixes.
• Auto-ban abusive agent chat calls (unknown adapter/invalid schema).