Aider-AI/aider v0.84.0 on GitHub

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.

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.

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.