Source Intelligence
Follow Discord
Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 0/5 agents 427 findings $12.75 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

claude-platform-on-aws

build-with-claude/claude-platform-on-aws

first seen The page's own history The capture it came from

Nearest release: v2.1.247, published 7 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

build-with-claude/claude-platform-on-aws Changed · +1 / -1 lines

from line 542
 * **Batch processing:** Submit batch requests for high-throughput workloads.
 * **Prompt caching:** Cache tools, system prompts, and message history to reduce latency and cost. All prompt caching capabilities (5-minute TTL, 1-hour TTL, and automatic caching) are available.
 * **Files API:** Upload and reference files across requests.
-* **Customer-managed encryption keys (CMEK):** [CMEK](https://platform.claude.com/docs/en/manage-claude/cmek) is available with [AWS KMS](https://platform.claude.com/docs/en/manage-claude/cmek-aws-kms) keys only. Google Cloud KMS and Azure Key Vault keys cannot be registered. Create and attach keys in the [Claude Console](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#using-the-claude-console). There is no separate validation step; the key policy is first exercised when a workspace starts using the key, so a key policy problem surfaces at that point rather than at registration. The `external_keys` Admin API endpoints are not currently available. The key must be in the same AWS region as the workspace it is attached to.
+* **Customer-managed encryption keys (CMEK):** [CMEK](https://platform.claude.com/docs/en/manage-claude/cmek) is available with [AWS KMS](https://platform.claude.com/docs/en/manage-claude/cmek-aws-kms) keys only. Google Cloud KMS and Azure Key Vault keys cannot be registered. Create and attach keys in the [Claude Console](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#using-the-claude-console). There is no separate validation step: the key is implicitly validated when you attach it to a workspace (the attach call performs an encrypt/decrypt round), so a key policy problem surfaces at attach time rather than at registration. The `external_keys` Admin API endpoints are not currently available. The key must be in the same AWS region as the workspace it is attached to.
 * **Compliance API:** The [Compliance API](https://platform.claude.com/docs/en/manage-claude/compliance-api) is available. Access is authorized through the AWS IAM [`ListComplianceActivities` action](https://platform.claude.com/docs/en/api/claude-platform-on-aws-iam-actions#compliance).
 
 See the [comparison table](https://platform.claude.com/docs/en/build-with-claude/claude-platform-on-aws#claude-platform-on-aws-vs-amazon-bedrock) for feature-availability differences from Amazon Bedrock.