Aider: What's New in August 2025

A summary of all updates, new features, and bug fixes released for Aider during August 2025.

1releases5features2fixes2improvements

← July 2025 September 2025 →

New Features in August 2025

Added support for all GPT-5 models.(v0.86.0)
Added support for Grok-4 via model names `xai/grok-4` and `openrouter/x-ai/grok-4`.(v0.86.0)
Added support for the `gemini/gemini-2.5-flash-lite-preview-06-17` model.(v0.86.0)
Added support for the `openrouter/moonshotai/kimi-k2` model.(v0.86.0)
Enabled display of model announcements when using the no-argument `/model` command.(v0.86.0)

Bug Fixes in August 2025

Fixed an issue where new settings provided for an existing model failed to replace the old settings.(v0.86.0)
Fixed analytics to correctly support the latest PostHog SDK event-capture API.(v0.86.0)

Improvements in August 2025

The `/clear` command now prints "All chat history cleared." upon successful execution for better user feedback.(v0.86.0)
The output of the `/undo` command now only shows the first line of each commit message for improved readability.(v0.86.0)

All Releases in August 2025

v0.86.05 features2 fixes

This release significantly expands model compatibility by adding support for all GPT-5 models, Grok-4, and several new preview and third-party models. Quality of life improvements include clearer feedback for the `/clear` command and cleaner output for `/undo`.