# Aider v0.75.0: Claude 3.7 Sonnet support, `--model sonnet` points at 3.7

> Basic Claude 3.7 Sonnet support lands; `--model sonnet` now selects 3.7, with thinking support stated as coming later. Rest of the release is syntax support and bug fixes.

| | |
|---|---|
| **Tool** | Aider |
| **Version** | v0.75.0 |
| **Kind** | release |
| **Published** | 2025-03-04 |
| **Observed** | 2026-08-11 |
| **Significance** | 3/5 |
| **Breaking** | no |
| **Categories** | model-support, fix, feature |

## What changed


- Basic Claude 3.7 Sonnet support — `--model sonnet` selects the new 3.7; thinking support not yet included
- Added tree-sitter language pack support
- Added `openrouter/o3-mini-high` model configuration
- HCL (Terraform) syntax support; `build.gradle.kts` added to special files for Kotlin projects
- o1 and o3-mini now sent the "Formatting re-enabled." string to get markdown output
- Fixes: `/editor` command, multi-line input incorrectly including the `". "` continuation prompt, more than one active cache-warming thread
- Streamlit dependency downgraded to avoid a threading bug


## Sources

- [github_release](https://github.com/Aider-AI/aider/releases/tag/v0.75.0) — retrieved 2026-08-11

## Community

_No curated reactions recorded. Facts and community takes are kept in separate layers
and never blended._

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Canonical: https://changelogs.info/aider/v0-75-0
Entity: https://changelogs.info/aider
Event ID: `evt_2025-03-04_aider_v0-75-0`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.