| 2026-11-02 |
| DOCS |
Anthropic |
Long conversations and agent loops on the Messages API can now send smaller requests and get a lower time to first… |
| 2026-10-30 |
| DEPRECATION |
Anthropic |
We’ve deprecated fast mode for Claude Opus 4.8, with removal on November 30, 2026. |
| 2026-10-29 |
| DOCS |
Anthropic |
The Usage and Cost API is now a legacy API, and so are the `usage_report`, `cost_report`, `user_usage_report`, and… |
| RELEASE |
Anthropic |
We’ve launched the Usage and Cost Analytics API in beta with the `analytics-usage-cost-2026-08-24` beta header. |
| 2026-10-28 |
| DOCS |
Anthropic |
We’ve raised the maximum request size for the Messages API and the Token Counting API from 32 MB to 128 MB on the… |
| 2026-10-23 |
| RELEASE |
Anthropic |
The Claude Tag API is available in beta for Claude Enterprise organizations with the… |
| 2026-10-22 |
| RELEASE |
Anthropic |
Fast mode is available for Claude Opus 5.5 on Claude Models on Google Cloud (Anthropic managed). |
| RELEASE |
Anthropic |
We've launched Claude Models on Google Cloud (Anthropic managed), the Claude API operated by Anthropic and reached… |
| 2026-10-21 |
| DOCS |
Anthropic |
We've added the `enforcement_status` and `enforcement_actions` fields to user profiles, so you can see whether… |
| DOCS |
Anthropic |
The new SDK and CLI versions also have breaking changes that don't depend on the API version, and they are licensed… |
| DOCS |
Anthropic |
We've released new versions of the client SDKs and the `ant` CLI that send API version `2026-10-21` by default: Python… |
| DOCS |
Anthropic |
We've released API version `2026-10-21`. Migrating to API version 2026-10-21 shows how to upgrade. |
| 2026-10-20 |
| DOCS |
Anthropic |
Inference hooks are out of beta for Claude Enterprise organizations. |
| DOCS |
Anthropic |
In Claude Managed Agents, sessions follow your organization's web search settings on the **Capabilities** page of the… |
| DOCS |
Anthropic |
In Claude Managed Agents, the `web_fetch` tool now follows your organization's web fetch domain restrictions set on the… |
| DOCS |
Anthropic |
Organization admins can now turn off web fetch for their organization on the **Capabilities** page of the Claude… |
| DOCS |
Anthropic |
We've added organization webhooks to the Admin API, in beta with the `webhooks-2026-10-07` beta header. |
| RELEASE |
Anthropic |
We've launched user profiles, so you can tell Anthropic which of your end customers each API request is for. |
| 2026-10-19 |
| DOCS |
Anthropic |
The Compliance API now returns the text each organization member saved as **Instructions for Claude** in claude.ai and… |
| 2026-10-15 |
| RELEASE |
Anthropic |
Fast mode for Claude Opus 5.5 is now available on Claude in Microsoft Foundry for deployments hosted on Azure. |
| DOCS |
Anthropic |
Fast mode is out of research preview for Claude Opus 5.5, and you no longer need to request access. |
| DOCS |
Anthropic |
We've added `capabilities.thinking.types.between_tools` to the Models API. |
| DOCS |
Anthropic |
The Compliance API now returns the text each organization member saved as **Instructions for Claude** in claude.ai and… |