Aider changelog

• Added support for all GPT-5 models.

• Added support for Grok-4 via xai/grok-4 and openrouter/x-ai/grok-4 model names.

• Added support for gemini/gemini-2.5-flash-lite-preview-06-17 model, by Tamir Zahavi-Brunner.

• /clear now prints “All chat history cleared.” so you know it worked, by Zexin Yuan.

• /undo output now shows only the first line of each commit message, making it easier to read.

• Added support for openrouter/moonshotai/kimi-k2 model, by Jack Harrington.

• Display model announcements with no-arg /model command.

• Fixed an issue where new settings for an existing model didn't replace the old ones, by Andrew Grigorev.

• Fixed analytics to support the latest PostHog SDK event-capture API.

• Bumped dependencies to pick up latest litellm==1.75.0.

• Aider wrote 88% of the code in this release.

New Models

• Added support for new Gemini models including gemini-2.5-pro, gemini-2.5-flash, and gemini-2.5-pro-preview-06-05 with thinking tokens support.
• Updated model aliases: flash now points to gemini-2.5-flash and gemini now points to gemini-2.5-pro.
• Support for Responses API models like o1-pro, o3-pro.
• Added support for OpenAI o3-pro model across multiple providers.
• Enhanced thinking tokens support: can now be disabled by setting to 0, and improved help text with examples.
• Increased max tokens for Deepseek models to 65536 for better performance.
• Updated pricing for o3.

New Features & Enhancements

• Added --add-gitignore-files flag to enable adding files listed in .gitignore to Aider's editing scope, by omarcinkonis.
• Co-authored-by attribution is now enabled by default for commit messages.
• Enhanced commit message generation to use system prompt prefixes, by Luke Reeves.
• Added --commit-language option to specify the language for commit messages, by Kyosuke Takayama.
• Skip expensive file tracking operations when --skip-sanity-check-repo is enabled for better performance, by Makar Ivashko.
• Optimized chat history summarization performance, by jayeshthk.
• Added custom PostHog analytics configuration options with --analytics-posthog-host and --analytics-posthog-project-api-key flags, by Vasil Markoukin.

Repository Map

• Added MATLAB language support for repository maps, by Matthew Tofano.
• Added Clojure language support for repository maps, by Garrett Hopper.
• Improved kebab-case identifier recognition in repository maps for better code analysis.

Fixes & Small Improvements

• Improved GitHub Copilot token handling with better validation and error messages, by Vincent Taverna and Sebastian Estrella.

• Improved inline code rendering in Rich markdown output, by Vamsi Talupula.

• Fixed Vertex AI model name prefixes in settings, by Wietse Venema.

• Improved /read-only command to resolve literal paths correctly, by Matteo Landi.

• Fixed encoding issues in git diff output and LLM history logging.

• Fixed search block regex to accept optional closing tags when working with HTML content, by Mathis Beer.

• Auto-create parent directories for chat history files to prevent startup errors, by contributor.

• Ensure pip is available before package installation.

• Aider wrote 21% of the code in this release.

Model support & provider updates

• Added support for new Claude models including the Sonnet 4 and Opus 4 series (e.g., claude-sonnet-4-20250514, claude-opus-4-20250514) across various providers. The default sonnet and opus aliases were updated to these newer versions.
• Added support for the vertex_ai/gemini-2.5-flash-preview-05-20 model.
• Updated default OpenRouter models during onboarding to deepseek/deepseek-r1:free for the free tier and anthropic/claude-sonnet-4 for paid tiers.
• Automatically refresh GitHub Copilot tokens when used as OpenAI API keys, by Lih Chen.

Core functionality improvements

• Fixed an issue where files explicitly added via the command line were not correctly ignored if listed in .gitignore.
• Improved automatic commit messages by providing more context during their generation, by wangboxue.
• Fixed OpenRouter token cost calculation for improved accuracy.

Quality of life improvements

• Improved OpenRouter model metadata handling by introducing a local cache, increasing reliability and performance.
• Added shell tab completion for file path arguments (by saviour) and for --edit-format/--editor-edit-format options.
• The /settings command now displays detailed metadata for active main, editor, and weak models.
• Improved user language detection by correctly normalizing hyphenated language codes (e.g., en-US to en) and enhancing the validation of locale results.
• Prevented aider from instructing the LLM to reply in 'C' or 'POSIX' when these are detected as the system locale.
• Displayed a spinner with the model name when generating commit messages.
• Bumped configargparse to 1.7.1 as 1.7 was pulled.

• Added support for gemini-2.5-pro-preview-05-06 models.
• Added support for qwen3-235b models.
• Added repo-map support for OCaml and OCaml interface files, by Andrey Popp.
• Added a spinner animation while waiting for the LLM to start streaming its response.
• Updated the spinner animation to a Knight Rider style.
• Introduced --attribute-co-authored-by option to add co-author trailer to commit messages, by Andrew Grigorev.
• Updated Gemini model aliases (e.g., gemini, gemini-2.5-pro) to point to the 05-06 preview versions.
• Marked Gemini 2.5 Pro preview models as overeager by default.
• Commit message prompt specifies the user's language.
• Updated the default weak model for Gemini 2.5 Pro models to gemini/gemini-2.5-flash-preview-04-17.
• Corrected gemini-2.5-pro-exp-03-25 model settings to reflect its lack of support for thinking_budget.
• Ensured model-specific system prompt prefixes are placed on a new line before the main system prompt.
• Added tracking of total tokens sent and received, now included in benchmark statistics.
• Automatically fetch model parameters (context window, pricing) for OpenRouter models directly from their website, by Stefan Hladnik.
• Enabled support for thinking_tokens and reasoning_effort parameters for OpenRouter models.
• Improved cost calculation using litellm.completion_cost where available.
• Added model settings for openrouter/google/gemini-2.5-pro-preview-03-25.
• Added --disable-playwright flag to prevent Playwright installation prompts and usage, by Andrew Grigorev.
• The aider scrape command-line tool will now use Playwright for web scraping if it is available, by Jon Keys.
• Fixed linter command execution on Windows by adopting oslex for argument quoting, by Titusz Pan.
• Improved cross-platform display of shell commands by using oslex for robust argument quoting, by Titusz Pan.
• Improved /ask mode to instruct the LLM to elide unchanging code in its responses.
• Ensured web scraping in the GUI also respects Playwright availability and the --disable-playwright flag.
• Improved display of filenames in the prompt header using rich Text formatting.
• Enabled reasoning_effort for Gemini 2.5 Flash models.
• Added a --shell-completions argument to generate shell completion scripts (e.g., for bash, zsh).
• Explicit --attribute-author or --attribute-committer flags now override the default behavior when --attribute-co-authored-by is used, allowing finer control over commit attribution, by Andrew Grigorev.
• Fixed an issue where read-only status of files might not be preserved correctly by some commands (e.g. /drop after adding a read-only file).
• The aider-args utility (or python -m aider.args) now defaults to printing a sample YAML configuration if no arguments are provided.
• Displayed token count progress and the name of the file or identifier being processed during repo map updates.
• Extended the waiting spinner to also show for non-streaming responses and further enhanced its animation with console width clipping, cursor hiding, and a more continuous appearance.
• Dropped support for Python 3.9.
• Aider wrote 55% of the code in this release.

Full release notes: https://aider.chat/HISTORY.html

• Support for GPT 4.1, mini and nano.

• Improved support for using architect mode with Gemini 2.5 Pro.

• Add support for xai/grok-3-beta, xai/grok-3-mini-beta, openrouter/x-ai/grok-3-beta, openrouter/x-ai/grok-3-mini-beta, and openrouter/openrouter/optimus-alpha models.

• Added support for grok-3-fast-beta and grok-3-mini-fast-beta models.

• Added new patch edit format for OpenAI's GPT-4.1 model.

• Added new editor-diff, editor-whole, and editor-diff-fenced edit formats.

• Bugfix for automatically selecting the best edit format to use in architect mode.

• Add alias "grok3" for xai/grok-3-beta.

• Add alias "optimus" for openrouter/openrouter/optimus-alpha.

• Fix URL extraction from error messages.

• Allow adding files by full path even if a file with the same basename is already in the chat.

• Fix quoting of values containing '#' in the sample aider.conf.yml.

• Add support for Fireworks AI model 'deepseek-v3-0324', by Felix Lisczyk.

• Aider wrote 92% of the code in this release.

• Added support for the openrouter/openrouter/quasar-alpha model.

  • Currently free on OpenRouter.
  • Quasar scored 55% on the polyglot coding benchmark
  • Run with aider --model quasar

• Offer OpenRouter OAuth authentication if an OpenRouter model is specified but the API key is missing.

• Prevent retrying API calls when the provider reports insufficient credits.

• Improve URL detection to exclude trailing double quotes.

• Bumped deps to pickup litellm change to properly display the root cause of OpenRouter "choices" errors.

• Improve error message for OpenRouter API connection issues to mention potential rate limiting or upstream provider issues.

• Configure weak models (gemini/gemini-2.0-flash and openrouter/google/gemini-2.0-flash-exp:free) for Gemini 2.5 Pro models.

• Add model metadata for openrouter/google/gemini-2.0-flash-exp:free.

• Updated deps for yanked fsspec and aiohttp packages #3699

• Removed redundant dependency check during OpenRouter OAuth flow, by Claudia Pellegrino.

• Aider wrote 86% of the code in this release.

https://aider.chat/HISTORY.html

• OpenRouter OAuth integration:

  • Offer to OAuth against OpenRouter if no model and keys are provided.
  • Select OpenRouter default model based on free/paid tier status if OPENROUTER_API_KEY is set and no model is specified.

• Prioritize gemini/gemini-2.5-pro-exp-03-25 if GEMINI_API_KEY is set, and vertex_ai/gemini-2.5-pro-exp-03-25 if VERTEXAI_PROJECT is set, when no model is specified.

• Validate user-configured color settings on startup and warn/disable invalid ones.

• Warn at startup if --stream and --cache-prompts are used together, as cost estimates may be inaccurate.

• Boost repomap ranking for files whose path components match identifiers mentioned in the chat.

• Change web scraping timeout from an error to a warning, allowing scraping to continue with potentially incomplete content.

• Left-align markdown headings in the terminal output, by Peter Schilling.

• Update edit format to the new model's default when switching models with /model, if the user was using the old model's default format.

• Add the openrouter/deepseek-chat-v3-0324:free model.

• Add Ctrl-X Ctrl-E keybinding to edit the current input buffer in an external editor, by Matteo Landi.

• Fix linting errors for filepaths containing shell metacharacters, by Mir Adnan ALI.

• Add repomap support for the Scala language, by Vasil Markoukin.

• Fixed bug in /run that was preventing auto-testing.

• Fix bug preventing UnboundLocalError during git tree traversal.

• Handle GitCommandNotFound error if git is not installed or not in PATH.

• Handle FileNotFoundError if the current working directory is deleted while aider is running.

• Fix completion menu current item color styling, by Andrey Ivanov.

• Aider wrote 87% of the code in this release.

Full change log: https://aider.chat/HISTORY.html

• Added support for SOTA Gemini 2.5 Pro.
• Added support for DeepSeek V3 0324.
• Added a new /context command that automatically identifies which files need to be edited for a given request.
• Added /edit as an alias for the /editor command.
• Added "overeager" mode for Claude 3.7 Sonnet models to try and keep it working within the requested scope.
• Aider wrote 65% of the code in this release.

• Added support for thinking tokens for OpenRouter Sonnet 3.7.

• Added commands to switch between model types: /editor-model for Editor Model, and /weak-model for Weak Model, by csala.

• Added model setting validation to ignore --reasoning-effort and --thinking-tokens if the model doesn't support them.

• Added --check-model-accepts-settings flag (default: true) to force unsupported model settings.

• Annotated which models support reasoning_effort and thinking_tokens settings in the model settings data.

• Improved code block rendering in markdown output with better padding using NoInsetMarkdown.

• Added --git-commit-verify flag (default: False) to control whether git commit hooks are bypassed.

• Fixed autocompletion for /ask, /code, and /architect commands, by shladnik.

• Added vi-like behavior when pressing enter in multiline-mode while in vi normal/navigation-mode, by Marco Mayer.

• Added AWS_PROFILE support for Bedrock models, allowing use of AWS profiles instead of explicit credentials, by lentil32.

• Enhanced --aiderignore argument to resolve both absolute and relative paths, by mopemope.

• Improved platform information handling to gracefully handle retrieval errors.

• Bumped dependencies to pickup litellm fix for Ollama.

• Added support for openrouter/google/gemma-3-27b-it model.

• Updated exclude patterns for help documentation.

• Aider wrote 92% of the code in this release.

Full release notes: https://aider.chat/HISTORY.html

• Big upgrade in programming languages supported by adopting tree-sitter-language-pack.

  • 130 new languages with linter support.
  • 20 new languages with repo-map support.

• Added /think-tokens command to set thinking token budget with support for human-readable formats (8k, 10.5k, 0.5M).

• Added /reasoning-effort command to control model reasoning level.

• The /think-tokens and /reasoning-effort commands display current settings when called without arguments.

• Display of thinking token budget and reasoning effort in model information.

• Changed --thinking-tokens argument to accept string values with human-readable formats.

• Added --auto-accept-architect flag (default: true) to automatically accept changes from architect coder format without confirmation.

• Added support for cohere_chat/command-a-03-2025 and gemini/gemma-3-27b-it

• The bare /drop command now preserves original read-only files provided via args.read.

• Fixed a bug where default model would be set by deprecated --shortcut switches even when already specified in the command line.

• Improved AutoCompleter to require 3 characters for autocompletion to reduce noise.

• Fixed handling of JSONDecodeError when loading model cache file.

• Fixed handling of GitCommandError when retrieving git user configuration.

• Added ignore_permission_denied option to file watcher to prevent errors when accessing restricted files, by Yutaka Matsubara.

• Aider wrote 72% of the code in this release.

• Improved support for thinking/reasoning models:

  • Added --thinking-tokens CLI option to control token budget for models that support thinking.
  • Display thinking/reasoning content from LLMs which return it.
  • Enhanced handling of reasoning tags to better clean up model responses.
  • Added deprecation warning for remove_reasoning setting, now replaced by reasoning_tag.

• Aider will notify you when it's completed the last request and needs your input:

  • Added notifications when LLM responses are ready with --notifications flag.
  • Specify desktop notification command with --notifications-command.

• Added/improved support for many models/providers:

  • Added support for QWQ 32B.
  • Support for DeepSeek V3 free on OpenRouter: --model openrouter/deepseek/deepseek-chat:free.
  • Added support for Claude 3.7 Sonnet models on OpenRouter, Bedrock and Vertex AI.
  • Updated default model to Claude 3.7 Sonnet on OpenRouter.
  • Added support for GPT-4.5-preview model.
  • Added support for Claude 3.7 Sonnet:beta on OpenRouter.
  • Added support for openrouter/anthropic/claude-3.7-sonnet
  • Fixed weak_model_name patterns to match main model name patterns for some models.

• Switch to tree-sitter-language-pack for tree sitter support.

• Improved error handling for EOF (Ctrl+D) in user input prompts.

• Added helper function to ensure hex color values have a # prefix.

• Fixed handling of Git errors when reading staged files.

• Improved SSL verification control for model information requests.

• Improved empty LLM response handling with clearer warning messages.

• Fixed Git identity retrieval to respect global configuration, by Akira Komamura.

• Offer to install dependencies for Bedrock and Vertex AI models.

• Deprecated model shortcut args (like --4o, --opus) in favor of the --model flag.

• Aider wrote 85% of the code in this release.

https://aider.chat/HISTORY.html

• Basic support for Claude 3.7 Sonnet
  • Use --model sonnet to use the new 3.7
  • Thinking support coming soon.
• Bugfix to /editor command.
• Downgrade streamlit dependency to avoid threading bug.
• Added support for tree-sitter language pack.
• Added openrouter/o3-mini-high model configuration.
• Added build.gradle.kts to special files for Kotlin project support, by Lucas Shadler.
• Prevent more than one cache warming thread from becoming active.
• Fixed continuation prompt ". " for multiline input.
• Added HCL (Terraform) syntax support, by Warren Krewenki.
• Have o1 & o3-mini generate markdown by sending the magic "Formatting re-enabled." string.
• Bugfix for multi-line inputs, which should not include the ". " continuation prompt.
• Aider wrote 46% of the code in this release.

• Dynamically changes the Ollama context window to hold the current chat.
• Better support for o3-mini, DeepSeek V3 & R1, o1-mini, o1 via secondary API providers.
• Remove <think> tags from R1 responses for commit messages (and other weak model uses).
• Can now specify use_temperature: <float> in model settings, not just true/false.
• The full docker container now includes boto3 for Bedrock.
• Docker containers now set HOME=/app which is the normal project mount-point, to persist ~/.aider.
• Bugfix to prevent creating incorrect filenames like python, php, etc.
• Bugfix for --timeout
• Bugfix so that /model now correctly reports that the weak model is not changed.
• Bugfix so that multi-line mode persists through ^C at confirmation prompts.
• Watch files now fully ignores top-level directories named in ignore files, to reduce the chance of hitting OS watch limits. Helpful to ignore giant subtrees like node_modules.
• Fast startup with more providers and when model metadata provided in local files.
• Improved .gitignore handling:
  • Honor ignores already in effect regardless of how they've been configured.
  • Check for .env only when the file exists.
• Yes/No prompts now accept All/Skip as alias for Y/N even when not processing a group of confirmations.
• Aider wrote 77% of the code in this release.

https://aider.chat/HISTORY.html

• Full support for o3-mini: aider --model o3-mini
• New --reasoning-effort argument: low, medium, high.
• Improved handling of context window size limits, with better messaging and Ollama-specific guidance.
• Added support for removing model-specific reasoning tags from responses with remove_reasoning: tagname model setting.
• Auto-create parent directories when creating new files, by xqyz.
• Support for R1 free on OpenRouter: --model openrouter/deepseek/deepseek-r1:free
• Enforce user/assistant turn order to avoid R1 errors, by miradnanali.
• Case-insensitive model name matching while preserving original case.
• Harden against user/assistant turn order problems which cause R1 errors.
• Fix model metadata for openrouter/deepseek/deepseek-r1
• Aider wrote 69% of the code in this release.

https://aider.chat/HISTORY.html

• Support for DeepSeek R1.
  • Use shortcut: --model r1
  • Also via OpenRouter: --model openrouter/deepseek/deepseek-r1
• Added Kotlin syntax support to repo map, by Paul Walker.
• Added --line-endings for file writing, by Titusz Pan.
• Added examples_as_sys_msg=True for GPT-4o models, improves benchmark scores.
• Bumped all dependencies, to pick up litellm support for o1 system messages.
• Bugfix for turn taking when reflecting lint/test errors.
• Fix permissions issue in Docker images.
• Added read-only file announcements.
• Bugfix: ASCII fallback for unicode errors.
• Bugfix: integer indices for list slicing in repomap calculations.
• Aider wrote 52% of the code in this release.

• Prompts to help DeepSeek work better when alternating between /ask and /code.
• Streaming pretty LLM responses is smoother and faster for long replies.
• Streaming automatically turns of for model that don't support it
  • Can now switch to/from /model o1 and a streaming model
• Pretty output remains enabled even when editing files with triple-backtick fences
• Bare /ask, /code and /architect commands now switch the chat mode.
• Increased default size of the repomap.
• Increased max chat history tokens limit from 4k to 8k.
• Turn off fancy input and watch files if terminal is dumb.
• Added support for custom voice format and input device settings.
• Disabled Streamlit email prompt, by apaz-cli.
• Fixed lint command handling of nested spaced strings, by Aaron Weisberg.
• Added token count feedback when adding command output to chat.
• Improved error handling for large audio files with automatic format conversion.
• Improved handling of git repo index errors, by Krazer.
• Improved unicode handling in console output with ASCII fallback.
• Added AssertionError to git error handling.
• Fixed file export path in voice format conversion.
• Added AttributeError to git error handling.
• Improved markdown rendering performance with adaptive delay based on render time.
• Fixed typo in model metadata variable name.
• Aider wrote 60% of the code in this release.

https://aider.chat/HISTORY.html

• Full support for o1 models.
• Watch files now honors --subtree-only, and only watches that subtree.
• Improved prompting for watch files, to work more reliably with more models.
• New install methods via uv, including one-liners.
• Support for openrouter/deepseek/deepseek-chat model.
• Better error handling when interactive commands are attempted via /load or --load.
• Display read-only files with abs path if its shorter than rel path.
• Ask 10% of users to opt-in to analytics.
• Bugfix for auto-suggest.
• Gracefully handle unicode errors in git path names.
• Fix for gemini model names in model metadata.
• Show hints about AI! and AI? when user makes AI comments.
• Support for running without git installed.
• Improved environment variable setup messages on Windows.
• Aider wrote 74% of the code in this release.

https://aider.chat/HISTORY.html

• Watch files improvements:
  • Use # ... AI? comments to trigger aider and ask questions about your code.
  • Now watches all files, not just certain source files.
  • Use # AI comments, // AI comments, or -- AI comments to give aider instructions in any text file.
• Full support for Gemini Flash 2.0 Exp:
  • aider --model flash or aider --model gemini/gemini-2.0-flash-exp
• New --multiline flag and /multiline-mode command makes ENTER a soft newline and META-ENTER send the message, by @miradnanali.
• /copy-context <instructions> now takes optional "instructions" when copying code context to the clipboard.
• Improved clipboard error handling with helpful requirements install info.
• Ask 5% of users if they want to opt-in to analytics.
• /voice now lets you edit the transcribed text before sending.
• Disabled auto-complete in Y/N prompts.
• Aider wrote 68% of the code in this release.

https://github.com/user-attachments/assets/528b6868-f6be-426c-a736-dbe1a208435d

• Aider works with LLM web chat UIs.
  • New --copy-paste mode.
  • New /copy-context command.
• Set API keys and other environment variables for all providers from command line or yaml conf file.
  • New --api-key provider=key setting.
  • New --set-env VAR=value setting.
• Added bash and zsh support to --watch-files.
• Better error messages when missing dependencies for Gemini and Bedrock models.
• Control-D now properly exits the program.
• Don't count token costs when API provider returns a hard error.
• Bugfix so watch files works with files that don't have tree-sitter support.
• Bugfix so o1 models can be used as weak model.
• Updated shell command prompt.
• Added docstrings for all Coders.
• Reorganized command line arguments with improved help messages and grouping.
• Use the exact sys.python for self-upgrades.
• Added experimental Gemini models.
• Aider wrote 71% of the code in this release.

https://github.com/user-attachments/assets/a8dca5f6-a1f8-4282-9cbd-e8219f4a23b6

• Use aider in your IDE or editor.
  • Run aider --watch-files and it will watch for instructions you add to your source files.
  • One-liner # ... or // ... comments that start or end with "AI" are instructions to aider.
  • When aider sees "AI!" it reads and follows all the instructions in AI comments.
• Support for new Amazon Bedrock Nova models.
• When /run or /test have non-zero exit codes, pre-fill "Fix that" into the next message prompt.
• /diff now invokes git diff to use your preferred diff tool.
• Added Ctrl-Z support for process suspension.
• Spinner now falls back to ASCII art if fancy symbols throw unicode errors.
• --read now expands ~ home dirs.
• Enabled exception capture in analytics.
• Aider wrote 61% of the code in this release.

https://github.com/user-attachments/assets/bea76d8b-5c31-4913-9536-97b7e6c632b5

• PDF support for Sonnet and Gemini models.
• Added --voice-input-device to select audio input device for voice recording, by @preynal.
• Added --timeout option to configure API call timeouts.
• Set cwd to repo root when running shell commands.
• Added Ctrl-Up/Down keyboard shortcuts for per-message history navigation.
• Improved error handling for failed .gitignore file operations.
• Improved error handling for input history file permissions.
• Improved error handling for analytics file access.
• Removed spurious warning about disabling pretty in VSCode.
• Removed broken support for Dart.
• Bugfix when scraping URLs found in chat messages.
• Better handling of version import errors.
• Improved /drop command to support substring matching for non-glob patterns.
• Bugfix to --alias.
• Aider wrote 82% of the code in this release.

https://github.com/user-attachments/assets/4d9b5187-45e5-47c2-a8ff-1e00542c8b06

• Added --alias config to define custom model aliases.
• Added --[no-]detect-urls flag to disable detecting and offering to scrape URLs found in the chat.
• Ollama models now default to an 8k context window.
• Added RepoMap support for Dart language by @malkoG.
• Ask 2.5% of users if they want to opt-in to analytics.
• Skip suggesting files that share names with files already in chat.
• /editor returns and prefill the file content into the prompt, so you can use /editor to compose messages that start with /commands, etc.
• Enhanced error handling for analytics.
• Improved handling of UnknownEditFormat exceptions with helpful documentation links.
• Bumped dependencies to pick up grep-ast 0.4.0 for Dart language support.
• Aider wrote 81% of the code in this release.

• Added /editor command to open system editor for writing prompts, by @thehunmonkgroup.
• Full support for gpt-4o-2024-11-20.
• Stream o1 models by default.
• /run and suggested shell commands are less mysterious and now confirm that they "Added XX lines of output to the chat."
• Ask 1% of users if they want to opt-in to analytics.
• Added support for optional multiline input tags with matching closing tags.
• Improved model settings configuration with support for global extra_params for litellm.completion().
• Architect mode now asks to add files suggested by the LLM.
• Fixed bug in fuzzy model name matching.
• Added Timeout exception to handle API provider timeouts.
• Added --show-release-notes to control release notes display on first run of new version.
• Save empty dict to cache file on model metadata download failure, to delay retry.
• Improved error handling and code formatting.
• Fixed bug in fuzzy model name matching when litellm provider info is missing.
• Modified model metadata file loading to allow override of resource file.
• Allow recursive loading of dirs using --read.
• Updated dependency versions to pick up litellm fix for ollama models.
• Added exponential backoff retry when writing files to handle editor file locks.
• Updated Qwen 2.5 Coder 32B model configuration.
• Fixed bug in git ignored file handling.
• Improved error handling for git operations.
• Aider wrote 74% of the code in this release.

• Support for Qwen 2.5 Coder 32B.
• /web command just adds the page to the chat, without triggering an LLM response.
• Improved prompting for the user's preferred chat language.
• Improved handling of LiteLLM exceptions.
• Bugfix for double-counting tokens when reporting cache stats.
• Bugfix for the LLM creating new files.
• Other small bug fixes.
• Aider wrote 55% of the code in this release.

• Full support for Claude 3.5 Haiku
  • Scored 75% on aider's code editing leaderboard.
  • Almost as good as Sonnet at much lower cost.
  • Launch with --haiku to use it.
• Easily apply file edits from ChatGPT, Claude or other web apps
  • Chat with ChatGPT or Claude via their web app.
  • Give it your source files and ask for the changes you want.
  • Use the web app's "copy response" button to copy the entire reply from the LLM.
  • Run aider --apply-clipboard-edits file-to-edit.js.
  • Aider will edit your file with the LLM's changes.
• Bugfix for creating new files.
• Aider wrote 84% of the code in this release.

• Load and save aider slash-commands to files:
  • /save <fname> command will make a file of /add and /read-only commands that recreate the current file context in the chat.
  • /load <fname> will replay the commands in the file.
  • You can use /load to run any arbitrary set of slash-commands, not just /add and /read-only.
  • Use --load <fname> to run a list of commands on launch, before the interactive chat begins.
• Anonymous, opt-in analytics with no personal data sharing.
• Aider follows litellm's supports_vision attribute to enable image support for models.
• Bugfix for when diff mode flexibly handles the model using the wrong filename.
• Displays filenames in sorted order for /add and /read-only.
• New --no-fancy-input switch disables prompt toolkit input, now still available with --no-pretty.
• Override browser config with --no-browser or --no-gui.
• Offer to open documentation URLs when errors occur.
• Properly support all o1 models, regardless of provider.
• Improved layout of filenames above input prompt.
• Better handle corrupted repomap tags cache.
• Improved handling of API errors, especially when accessing the weak model.
• Aider wrote 68% of the code in this release.

• Full support for Sonnet 10/22, the new SOTA model on aider's code editing benchmark.
  • Aider uses Sonnet 10/22 by default.
• Improved formatting of added and read-only files above chat prompt, by @jbellis.
• Improved support for o1 models by more flexibly parsing their nonconforming code edit replies.
• Corrected diff edit format prompt that only the first match is replaced.
• Stronger whole edit format prompt asking for clean file names.
• Now offers to add .env to the .gitignore file.
• Ships with a small model metadata json file to handle models not yet updated in litellm.
• Model settings for o1 models on azure.
• Bugfix to properly include URLs in /help RAG results.
• Aider wrote 49% of the code in this release.

• Improvements to /read-only:
  • Now supports shell-style auto-complete of the full file system.
  • Still auto-completes the full paths of the repo files like /add.
  • Now supports globs like src/**/*.py
• Renamed --yes to --yes-always.
  • Now uses AIDER_YES_ALWAYS env var and yes-always: yaml key.
  • Existing YAML and .env files will need to be updated.
  • Can still abbreviate to --yes on the command line.
• Config file now uses standard YAML list syntax with - list entries, one per line.
• /settings now includes the same announcement lines that would print at launch.
• Sanity checks the --editor-model on launch now, same as main and weak models.
• Added --skip-sanity-check-repo switch to speedup launch in large repos.
• Bugfix so architect mode handles Control-C properly.
• Repo-map is deterministic now, with improved caching logic.
• Improved commit message prompt.
• Aider wrote 77% of the code in this release.

• Use a pair of Architect/Editor models for improved coding
  • Use a strong reasoning model like o1-preview as your Architect.
  • Use a cheaper, faster model like gpt-4o as your Editor.
• New --o1-preview and --o1-mini shortcuts.
• Support for new Gemini 002 models.
• Better support for Qwen 2.5 models.
• Many confirmation questions can be skipped for the rest of the session with "(D)on't ask again" response.
• Autocomplete for /read-only supports the entire filesystem.
• New settings for completion menu colors.
• New /copy command to copy the last LLM response to the clipboard.
• Renamed /clipboard to /paste.
• Will now follow HTTP redirects when scraping urls.
• New --voice-format switch to send voice audio as wav/mp3/webm, by @mbailey.
• ModelSettings takes extra_params dict to specify any extras to pass to litellm.completion().
• Support for cursor shapes when in vim mode.
• Numerous bug fixes.
• Aider wrote 53% of the code in this release.

• Support for OpenAI o1 models:
  • o1-preview now works well with diff edit format.
  • o1-preview with diff now matches SOTA leaderboard result with whole edit format.
  • aider --model o1-mini
  • aider --model o1-preview
• On Windows, /run correctly uses PowerShell or cmd.exe.
• Support for new 08-2024 Cohere models, by @jalammar.
• Can now recursively add directories with /read-only.
• User input prompts now fall back to simple input() if --no-pretty or a Windows console is not available.
• Improved sanity check of git repo on startup.
• Improvements to prompt cache chunking strategy.
• Removed "No changes made to git tracked files".
• Numerous bug fixes for corner case crashes.
• Updated all dependency versions.
• Aider wrote 70% of the code in this release.

• Enables prompt caching for Sonnet via OpenRouter by @fry69
• Enables 8k output tokens for Sonnet via VertexAI and DeepSeek V2.5.
• New /report command to open your browser with a pre-populated GitHub Issue.
• New --chat-language switch to set the spoken language.
• Now --[no-]suggest-shell-commands controls both prompting for and offering to execute shell commands.
• Check key imports on launch, provide helpful error message if dependencies aren't available.
• Renamed --models to --list-models by @fry69.
• Numerous bug fixes for corner case crashes.
• Aider wrote 56% of the code in this release.

• Offer to submit a GitHub issue pre-filled with uncaught exception info.
• Numerous corner case bug fixes submitted via new pre-filled crash report feature.
• New /settings command to show active settings.
• Startup QOL improvements:
  • Sanity check the git repo and exit gracefully on problems.
  • Pause for confirmation after model sanity check to allow user to review warnings.
• Include important devops files in the repo map.
• Don't ask again in current session about a file the user has said not to add to the chat.
• Only print the pip command when self updating on Windows, without running it.
• Converted many error messages to warning messages.
• Added --tool-warning-color setting.
• Disabled built in linter for typescript.
• Catch /voice transcription exceptions, show the WAV file so the user can recover it.
• Adopted setuptools_scm to provide vX.Y.Z.dev version naming with git hashes.
• Share active test and lint commands with the LLM.
• Added --verbose debug output for shell commands.
• Do not fuzzy match filenames when LLM is creating a new file, by @ozapinq
• Only show cache warming status update if --verbose.
• Bugfix for shell commands on Windows.
• Refuse to make git repo in $HOME, warn user.
• Added --update as an alias for --upgrade.
• Bugfix to completions for /model command.
• Aider wrote 53% of the code in this release.

• Added model settings for gemini/gemini-1.5-pro-exp-0827 and gemini/gemini-1.5-flash-exp-0827.
• Shell and /run commands can now be interactive in environments where a pty is available.
• Optionally share output of suggested shell commands back to the LLM.
• New --[no-]suggest-shell-commands switch to configure shell commands.
• Performance improvements for autocomplete in large/mono repos.
• New --upgrade switch to install latest version of aider from pypi.
• Bugfix to --show-prompt.
• Disabled automatic reply to the LLM on /undo for all models.
• Removed pager from /web output.
• Aider wrote 64% of the code in this release.

• Keep your prompt cache from expiring with --cache-keepalive-pings.
  • Pings the API every 5min to keep the cache warm.
• You can now bulk accept/reject a series of add url and run shell confirmations.
• Improved matching of filenames from S/R blocks with files in chat.
• Stronger prompting for Sonnet to make edits in code chat mode.
• Stronger prompting for the LLM to specify full file paths.
• Improved shell command prompting.
• Weak model now uses extra_headers, to support Anthropic beta features.
• New --install-main-branch to update to the latest dev version of aider.
• Improved error messages on attempt to add not-git subdir to chat.
• Show model metadata info on --verbose.
• Improved warnings when LLMs env variables aren't set.
• Bugfix to windows filenames which contain \_.
• Aider wrote 59% of the code in this release.

• Aider now offers to run shell commands:
  • Launch a browser to view updated html/css/js.
  • Install new dependencies.
  • Run DB migrations.
  • Run the program to exercise changes.
  • Run new test cases.
• /read and /drop now expand ~ to the home dir.
• Show the active chat mode at aider prompt.
• New /reset command to /drop files and /clear chat history.
• New --map-multiplier-no-files to control repo map size multiplier when no files are in the chat.
  • Reduced default multiplier to 2.
• Bugfixes and improvements to auto commit sequencing.
• Improved formatting of token reports and confirmation dialogs.
• Default OpenAI model is now gpt-4o-2024-08-06.
• Bumped dependencies to pickup litellm bugfixes.
• Aider wrote 68% of the code in this release.

• Prompt caching for Anthropic models with --cache-prompts.
  • Caches the system prompt, repo map and /read-only files.
• Repo map recomputes less often in large/mono repos or when caching enabled.
  • Use --map-refresh <always|files|manual|auto> to configure.
• Improved cost estimate logic for caching.
• Improved editing performance on Jupyter Notebook .ipynb files.
• Show which config yaml file is loaded with --verbose.
• Bumped dependency versions.
• Bugfix: properly load .aider.models.metadata.json data.
• Bugfix: Using --msg /ask ... caused an exception.
• Bugfix: litellm tokenizer bug for images.
• Aider wrote 56% of the code in this release.

• Infinite output for DeepSeek Coder, Mistral models in addition to Anthropic's models.
• New --deepseek switch to use DeepSeek Coder.
• DeepSeek Coder uses 8k token output.
• New --chat-mode <mode> switch to launch in ask/help/code modes.
• New /code <message> command request a code edit while in ask mode.
• Web scraper is more robust if page never idles.
• Improved token and cost reporting for infinite output.
• Improvements and bug fixes for /read only files.
• Switched from setup.py to pyproject.toml, by @branchvincent.
• Bug fix to persist files added during /ask.
• Bug fix for chat history size in /tokens.
• Aider wrote 66% of the code in this release.

• Add read-only files to the chat context with /read and --read, including from outside the git repo.
• /diff now shows diffs of all changes resulting from your request, including lint and test fixes.
• New /clipboard command to paste images or text from the clipboard, replaces /add-clipboard-image.
• Now shows the markdown scraped when you add a url with /web.
• When scripting aider messages can now contain in-chat / commands.
• Aider in docker image now suggests the correct command to update to latest version.
• Improved retries on API errors (was easy to test during Sonnet outage).
• Added --mini for gpt-4o-mini.
• Bugfix to keep session cost accurate when using /ask and /help.
• Performance improvements for repo map calculation.
• /tokens now shows the active model.
• Enhanced commit message attribution options:
  • New --attribute-commit-message-author to prefix commit messages with 'aider: ' if aider authored the changes, replaces --attribute-commit-message.
  • New --attribute-commit-message-committer to prefix all commit messages with 'aider: '.
• Added openai/gpt-4o-2024-08-06.
• Worked around litellm bug that removes OpenRouter app headers when using extra_headers.
• Improved progress indication during repo map processing.
• Removed obsolete 16k token limit on commit diffs, use per-model limits.
• Aider wrote 61% of the code in this release.

• Performance improvements for large/mono repos.
• Added --subtree-only to limit aider to current directory subtree.
  • Should help with large/mono repo performance.
• New /add-clipboard-image to add images to the chat from your clipboard.
• Use --map-tokens 1024 to use repo map with any model.
• Support for Sonnet's 8k output window.
  • Aider already supported infinite output from Sonnet.
• Workaround litellm bug for retrying API server errors.
• Upgraded dependencies, to pick up litellm bug fixes.
• Aider wrote 44% of the code in this release.

• Commit message improvements:
  • Added Conventional Commits guidelines to commit message prompt.
  • Added --commit-prompt to customize the commit message prompt.
  • Added strong model as a fallback for commit messages (and chat summaries).
• Linting improvements:
  • Ask before fixing lint errors.
  • Improved performance of --lint on all dirty files in repo.
  • Improved lint flow, now doing code edit auto-commit before linting.
  • Bugfix to properly handle subprocess encodings (also for /run).
• Improved docker support:
  • Resolved permission issues when using docker run --user xxx.
  • New paulgauthier/aider-full docker image, which includes all extras.
• Switching to code and ask mode no longer summarizes the chat history.
• Added graph of aider's contribution to each release.
• Generic auto-completions are provided for /commands without a completion override.
• Fixed broken OCaml tags file.
• Bugfix in /run add to chat approval logic.
• Aider wrote 58% of the code in this release.