# Aider v0.53.0: prompt cache keepalive pings

> Adds `--cache-keepalive-pings`, which pings the API every 5 minutes to stop a prompt cache from expiring — a cost/latency knob for long sessions. Also adds bulk accept/reject for chained confirmations and various prompting improvements.

| | |
|---|---|
| **Tool** | Aider |
| **Version** | v0.53.0 |
| **Kind** | release |
| **Published** | 2024-08-27 |
| **Observed** | 2026-08-11 |
| **Significance** | 2/5 |
| **Breaking** | no |
| **Categories** | feature, fix |

## What changed


- `--cache-keepalive-pings` pings the API every 5 min to keep the prompt cache warm
- Bulk accept/reject for a run of add-url and run-shell confirmations
- Better matching of filenames in search/replace blocks against files in the chat
- Stronger prompting: Sonnet edits in code chat mode, full file paths, shell commands
- Weak model now sends `extra_headers`, enabling Anthropic beta features
- New `--install-main-branch` installs the latest dev build
- Clearer errors when adding a non-git subdirectory; clearer warnings when model env vars are unset
- `--verbose` shows model metadata; fix for Windows filenames containing `\_`


## Sources

- [github_release](https://github.com/Aider-AI/aider/releases/tag/v0.53.0) — 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/v0-53-0
Entity: https://changelogs.info/aider
Event ID: `evt_2024-08-27_aider_v0-53-0`
Licence: event synthesis © changelogs.info, CC BY 4.0. Linked sources belong to their vendors.