Changelog | 21st.dev | 21st.dev

Changelog

January 25, 2026

1Code v0.0.42

What's New

Features

Drag & Drop File Mentions — Drag files directly to chat with hidden content support
Custom Hotkeys in Tooltips — Your custom shortcuts now show in tooltips
Sidebar Mutual Exclusion — Sidebars auto-restore when switching between them

Improvements & Fixes

MCP OAuth Fix — Fixed authentication for servers with client allowlists — thanks @jjjrmy! (#88)
Slash Commands — Fixed multi-line arguments and auto-send behavior — thanks @paul-bouzian! (#84, #86)
Relative Paths — Show relative paths instead of absolute in UI
Cmd+R Disabled — Prevent accidental page refresh
Pasted Text Fix — Sanitize pasted text preview to fix mention parsing

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January 24, 2026

1Code v0.0.41

What's New

Features

Large Text Paste — Auto-convert large pasted text to file attachments

Improvements & Fixes

Details Sidebar — Improved caching, Plan widget expand, and UI updates
Plan Indicator — Fixed pending plan indicator (use mode as source of truth)
Tooltip Fix — Hide tooltip when workspace/chat is archived

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January 24, 2026

1Code v0.0.40

What's New

Features

Details Sidebar — New unified Details sidebar with configurable widgets

Read full release notes→

January 24, 2026

1Code v0.0.39

What's New

Improvements & Fixes

Notifications Fix — Filter notifications by chatId to prevent spam
Per-Workspace Sidebars — Plan and terminal sidebars are now per-workspace
Claude SDK Error Handling — Improved error handling and categorization
Thinking Tokens Fix — Reduced max thinking tokens to prevent exceeding limit

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January 24, 2026

1Code v0.0.38

What's New

Features

Mermaid Diagrams — Added mermaid diagram support in markdown renderer
Manual Update Check — Added button in settings to manually check for updates

Improvements & Fixes

Stream Stop Fix — Fixed sending queued message after stopping stream
Extended Thinking Fix — Fixed max thinking tokens limit for Claude Opus 4.5 (64k instead of 128k)
Stream Handling — Improved stream stop handling with proper polling

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January 24, 2026

1Code v0.0.37

What's New

Improvements & Fixes

Plan Mode UI — Improved plan mode UI and sidebar refetch
Auto-scroll Fix — Allow user to disable auto-scroll during scroll animation
Todo List Fix — Fixed infinite loop in todo list useEffect

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January 23, 2026

1Code v0.0.36

What's New

Features

Desktop Notifications Toggle — Easily enable/disable system notifications in Settings → Preferences — thanks @cyxzdev! (#47)
Chat Export — Export chats via context menu - download or copy to clipboard in Markdown, JSON, or Plain Text formats (supports both full workspace and individual sub-chat export) — thanks @cyxzdev! (#47)

Improvements & Fixes

Improved notification throttling with priority system — thanks @cyxzdev! (#47)

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January 23, 2026

1Code v0.0.35

What's New

Features

CLI Command Support — Open 1Code from terminal with 1code . or 1code /path/to/project — thanks @caffeinum! (#15)
Support Existing CLI Config — Detect and use existing Claude API keys from CLI config — thanks @sa4hnd! (#29)
Auto-Advance Setting — New option to control navigation after archiving a workspace (Settings → Preferences)

Improvements & Fixes

Improved Windows PATH resolution for packaged apps — fixes Claude agents and git-lfs on Windows — thanks @prathamdby! (#75)

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January 23, 2026

1Code v0.0.34

What's New

Features

Simplified Plan Mode — Plan now shows as a compact card with option to view full plan in sidebar
Always Expand To-Do List — New option to keep to-do list expanded (Settings → Preferences)

Improvements & Fixes

Fixed Claude SDK spawn errors and handle expired sessions — thanks @CorentinLumineau! (#70)
Fixed Windows compatibility for git worktree operations — thanks @ChrisPei! (#72)
Only show traffic light spacer on macOS — thanks @ChrisPei! (#73)
Improved plan collapsing and removed redundant "Build plan" button
Skip Ollama checks when offline mode is disabled
GitHub avatar loading placeholder in settings
Fixed custom headers in MCP auth

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January 22, 2026

1Code v0.0.33

What's New

Features

Co-Authored-By Toggle — New preference to disable Claude attribution in commits (Settings → Preferences) — thanks @aadivar! (#56)
CI/CD Release Pipeline — Automated builds for macOS (ARM64 + Intel) and Windows

Improvements & Fixes

Fixed crash when sending follow-up messages in plan mode — thanks @arnavv-guptaa! (#68)
Improved to-do list display during streaming updates and new generations
Consolidated preferences into single settings group

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Showing 10 of 54 releases