---
title: "v1.87.2 - Claude Fable 5, Batch Auth, CrowdStrike & Mantle SigV4"
url: "/release_notes/v1.87.2/v1-87-2"
canonical_url: "https://docs.litellm.ai/release_notes/v1.87.2/v1-87-2"
type: "release-notes"
last_updated: "2026-10-09"
related:
  - "/release_notes/v1.87.3/v1-87-3"
  - "/release_notes/v1.87.1/v1-87-1"
---
# v1.87.2 - Claude Fable 5, Batch Auth, CrowdStrike & Mantle SigV4

> 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:1.87.2
```

**Pip**

```bash
pip install litellm==1.87.2
```

`v1.87.2` is a patch release on top of [`v1.87.1`](/release_notes/v1.87.1/v1-87-1). It adds Claude Fable 5, batch-file authorization, the CrowdStrike AIDR identity pair, and SigV4/IAM auth for the Bedrock Mantle Responses API route.

### What's Changed

- feat: add Claude Fable 5 across Anthropic, Bedrock, Vertex AI, and Azure AI - [PR #30064](https://github.com/BerriAI/litellm/pull/30064)
- fix(proxy): authorize batch files using upload `target_model_names` (LIT-3593) - [PR #30009](https://github.com/BerriAI/litellm/pull/30009)
- feat(guardrails): capture CrowdStrike AIDR user and model metadata - [PR #29517](https://github.com/BerriAI/litellm/pull/29517)
- fix(guardrails): read CrowdStrike AIDR identity from both metadata bags - [PR #29991](https://github.com/BerriAI/litellm/pull/29991)
- feat(bedrock_mantle): add SigV4/IAM auth to the Responses API route, with its prerequisite Mantle Responses route (#29490) - [PR #29788](https://github.com/BerriAI/litellm/pull/29788)

## Full Changelog

https://github.com/BerriAI/litellm/compare/v1.87.1...v1.87.2

## Related pages

- [v1.87.3](https://docs.litellm.ai/release_notes/v1.87.3/v1-87-3.md)
- [v1.87.1](https://docs.litellm.ai/release_notes/v1.87.1/v1-87-1.md)