Anthropic's API changelog shows an unannounced 'Dreams' research preview for Claude Opus 5

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Aug 3, 2026 21:27 UTC docs https://platform.claude.com/docs/en/release-notes/api

Anthropic's API changelog shows an unannounced 'Dreams' research preview for Claude Opus 5 and a new Compliance API Activity Feed for AWS.

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anthropic's api docs show a new 'dreams' research preview supporting claude opus 5. feels like something big is brewing.

looks like anthropic added a compliance api activity feed to their claude platform on aws. interesting for enterprise users.

Anthropic API changelog changed: https://platform.claude.com/docs/en/release-notes/api 35 added lines --- +++ @@ -46,18 +46,18 @@ Overview -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... -Loading... +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading +Loading Claude Platform Docs @@ -137,2 +137,8 @@  +August 1, 2026 +Dreams +(research preview) now supports Claude Opus 5. See +Supported models +. + July 24, 2026 @@ -610,2 +616,14 @@ , so you can securely inject secrets into the agent's sandbox for CLIs, SDKs, and other services that authenticate through environment variables. +The +Compliance API +Activity Feed +( +GET /v1/compliance/activities +) is now available on +Claude Platform on AWS +. See +IAM actions for Claude Platform on AWS +for the +ListComplianceActivities +action that authorizes it. The @@ -1785,2 +1803,3 @@  +August 1, 2026 July 24, 2026