---
title: "v1.84.9 - Anthropic Cache-Control Cap"
url: "/release_notes/v1.84.9/v1-84-9"
canonical_url: "https://docs.litellm.ai/release_notes/v1.84.9/v1-84-9"
type: "release-notes"
last_updated: "2026-10-09"
related:
  - "/release_notes/v1.84.10/v1-84-10"
  - "/release_notes/v1.84.8/v1-84-8"
---
# v1.84.9 - Anthropic Cache-Control Cap

> Index of all LiteLLM docs: https://docs.litellm.ai/llms.txt

## Deploy this version

**Docker**

```bash
docker run \
-e STORE_MODEL_IN_DB=True \
-p 4000:4000 \
docker.litellm.ai/berriai/litellm:1.84.9
```

**Pip**

```bash
pip install litellm==1.84.9
```

`v1.84.9` is a patch release on top of [`v1.84.8`](/release_notes/v1.84.8/v1-84-8). It caps Anthropic `cache_control` injection at the 4-block API limit so prompt-caching requests no longer fail when more blocks are eligible.

### What's Changed

- fix(integrations): cap Anthropic cache_control injection at 4 blocks - [PR #30480](https://github.com/BerriAI/litellm/pull/30480)

## Full Changelog

https://github.com/BerriAI/litellm/compare/v1.84.8...v1.84.9

## Related pages

- [v1.84.10](https://docs.litellm.ai/release_notes/v1.84.10/v1-84-10.md)
- [v1.84.8](https://docs.litellm.ai/release_notes/v1.84.8/v1-84-8.md)