ant CLI 1.30.0 adds ant apply to manage agents and resources as code

UpdateSep 3, 2026VerifiedAdded Sep 22, 2026

ant apply creates and updates agents, environments, skills, memory stores and deployments from files in a repository after you approve a printed plan. A committed claude-lock.json lets later local or CI runs update the same resources instead of creating new ones.

AI agents LLMs Pricing Developer tools

Read Anthropic's release notes

https://platform.claude.com/docs/en/release-notes/overview#september-3-2026

Summaries of vendors' own notes. Product names and logos belong to their owners; logos via logo.dev.

More Claude Platform releases

Claude PlatformSep 3, 2026

Per-message effort changes beta expands to Claude on Google Cloud

Per-message effort changes are now available in beta on Google Cloud for Claude Fable 5.1, Claude Mythos 5.1 and Claude Opus 5, using the same mid-conversation-output-config-2026-07-01 beta header.

BetaLLMsSource

Claude PlatformSep 1, 2026

Claude Fable 5.1 launches alongside Claude Mythos 5.1 with 1M token context

Claude Fable 5.1 succeeds Claude Fable 5 for long-running agentic coding, knowledge work and research, with Claude Mythos 5.1 for Project Glasswing participants. Both have a 1M context, 128k output and adaptive thinking at $10 / $50 per MTok, with cache reads cut to $0.25 per MTok.

GAAI agentsLLMsDeveloper toolsSource

Claude PlatformSep 1, 2026

Prompt cache reads on Claude Fable 5.1 and Mythos 5.1 drop to $0.25 per MTok

Cache reads on Claude Fable 5.1 and Claude Mythos 5.1 cost 0.025x the base input price instead of the usual 0.1x, which lowers the cost of cache-heavy agent workloads. Cache write pricing is unchanged.

PricingLLMsPricingSource

Claude PlatformSep 1, 2026

Claude Fable 5.1 and Mythos 5.1 reject tool_choice any and tool

On Claude Fable 5.1 and Claude Mythos 5.1, tool_choice types any and tool return a 400 error while auto and none are unchanged. Use strict tool use or structured outputs to guarantee schema-conformant tool inputs.

UpdateLLMsSource

Claude PlatformSep 1, 2026

Claude Fable 5.1 thinking blocks only replay to the same or newer models

Thinking blocks from Claude Fable 5.1 and Mythos 5.1 can't be read by earlier models and are dropped if replayed to them. Fable 5.1 also checks that nothing before a replayed block has changed, which matters for agents that edit conversation history.

UpdateLLMsDeveloper toolsSource

Claude PlatformSep 1, 2026

Per-message effort changes enter beta on the Claude API

A role system message carrying output_config.effort inside messages changes effort for later turns while preserving the prompt cache, on Claude Fable 5.1, Mythos 5.1 and Opus 5. Requests need the mid-conversation-output-config-2026-07-01 beta header.

BetaLLMsDeveloper toolsSource

Claude PlatformSep 1, 2026

Claude API adds turn-scoped system messages in beta

Setting clear_at next_user_message on a mid-conversation system message renders it for the current turn only, then keeps it in history at no token cost. Per-turn reminders no longer accumulate or invalidate the prompt cache and later thinking blocks.

BetaPricingSource

Claude PlatformSep 1, 2026

Claude API thinking.display adds an updates mode in beta

The new updates value, behind the thinking-display-updates-2026-08-18 header, returns reasoning empty like omitted but surfaces the short progress updates Fable and Mythos models write between tool calls as text.

BetaLLMsSource

Also shipped on Sep 3, 2026

Google Cloud BigQuerySep 3, 2026

Conversational analytics now supports questions about market basket analysis

Conversational analytics now supports questions about market basket analysis . This feature is generally available (GA).

GASource

Snowflake Snowflake Horizon CatalogSep 3, 2026

External lineage (General availability)

External lineage is now generally available and is no longer in Preview .

GAGovernanceSource

Snowflake Snowflake Cortex AISep 3, 2026

Restricted Session Scope for agents (General availability)

With this release, Restricted Session Scope (RSS) is generally available. An RSS is a privilege ceiling that limits what an agent can do on behalf of a user. It intersects with RBAC and never grants privileges the user doesn't already have through their roles.

GAAI agentsSource

Databricks Databricks SQLSep 3, 2026

Share metric views with OpenSharing (Beta)

You can now share metric views with Databricks users in other metastores or accounts using OpenSharing. See Add metric views to a share and Read shared metric views .

BetaSource

Databricks AI/BI and GenieSep 3, 2026

Genie One enhancements

- Ask Genie button hidden when unsupported : In embedded dashboards, the Ask Genie button is now hidden when it isn't supported. See Ask Genie in embedded dashboards . Push notifications for scheduled tasks (Public Preview) : The Genie mobile app can now send push notifications for scheduled tasks to iOS devices. See Push notifications .

PreviewBISource

Databricks AI/BI and GenieSep 3, 2026

Web search in Genie One (Beta)

Genie One can now search the public web to answer questions that need current information, such as recent releases, third-party documentation, or news. Genie One decides when to search and cites the sources it uses, showing each as a link you can open. See Search the web .

BetaBISource