- 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. <img width="730" alt="2025-04-14_16-22-29" src="https://github.com/user-attachments/assets/e4bd30b4-7fa4-4784-a10c-50315d7cbac6" />

- 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 <img width="826" alt="2025-04-04_16-17-33" src="https://github.com/user-attachments/assets/4b6c4c8f-6110-4c6c-8f27-03592e36c1d2" />

- 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. <img width="939" alt="2025-03-25_10-50-17" src="https://github.com/user-attachments/assets/48795278-5693-441c-8744-653f5ade99a3" />

- 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