ant CLI 1.32.0 adds sessions connect for live Managed Agents sessions

BetaSep 10, 2026VerifiedAdded Sep 22, 2026

ant beta:sessions connect attaches a terminal to a Claude Managed Agents session so you can follow it live, send messages and approve or deny pending tool calls. --web serves the Console session viewer locally.

AI agents LLMs Developer tools

Read Anthropic's release notes

https://platform.claude.com/docs/en/release-notes/overview#september-10-2026

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

More Claude Platform releases

Claude PlatformSep 10, 2026

Claude Managed Agents permission policies add an auto mode

A new auto permission policy lets the server evaluate each agent or MCP tool call and run it, deny it, or pause for approval. agent.tool_use and agent.mcp_tool_use events now report how each call was evaluated.

UpdateAI agentsLLMsMCPSource

Claude PlatformSep 14, 2026

Messages API adds on-demand conversation compaction in beta

With the compact-2026-09-04 beta header, the top-level compaction parameter returns a signed compaction block summarizing prior messages, which you send in their place on later requests. You choose when to compact, it can run in the background, and recent turns can be kept verbatim.

BetaLLMsDeveloper toolsSource

Claude PlatformSep 14, 2026

Claude API input_transformations adds thinking_mismatch_allowed entries in beta

Under the thinking-binding-controls-2026-08-01 beta header, input_transformations can report thinking_mismatch_allowed for thinking blocks that failed an unenforced prefix check. Logging these entries helps find conversation history edits in production traffic.

BetaLLMsObservabilityDeveloper toolsSource

Claude PlatformSep 3, 2026

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

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.

UpdateAI agentsLLMsPricingSource

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 18, 2026

Compliance API adds Claude in Chrome session transcripts in beta

Compliance API local session endpoints now return transcripts of Claude in Chrome sessions (product_surface claude_in_chrome) for Claude Enterprise organizations, using the existing Compliance Access Key and read:compliance_user_data scope.

BetaLLMsGovernanceDeveloper toolsSource

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

Also shipped on Sep 10, 2026

Google Cloud BigQuerySep 10, 2026

BigQuery conversational analytics adds ML.CORRELATION in preview

Conversational analytics can now use ML.CORRELATION to calculate statistical correlations between a target column and one or more metric columns in a table.

PreviewSQLSource

Google Cloud BigQuerySep 10, 2026

BigQuery ML.METRICS evaluates predictions without a stored model

The preview ML.METRICS function computes classification or regression evaluation metrics on any table or query with actual and predicted values, with no need to create or reference a stored model.

PreviewSQLGovernanceObservabilitySource

Google Cloud BigQuerySep 10, 2026

You can use the AI.CAUSAL_EFFECT function to quantify the impact of specific interventions on time series data

You can use the AI.CAUSAL_EFFECT function to quantify the impact of specific interventions on time series data. This feature is in Preview .

PreviewSource

Google Cloud BigQuerySep 10, 2026

BigQuery Data Engineering Agent integrates with BigQuery Graph

The Data Engineering Agent now uses BigQuery Graph for extra context between source and destination schemas, improving schema mapping accuracy in data engineering pipelines. It is generally available.

GAAI agentsSQLData integrationSource

Snowflake SnowflakeSep 10, 2026

Using dbt artifacts for Slim CI and defer to production in dbt Projects on Snowflake (General availability)

Slim CI, defer to production, failed-execution recovery, and concurrent execution are now generally available for dbt Projects on Snowflake. Reuse dbt artifacts from recent production executions to accelerate development, streamline CI/CD workflows, and recover from failed production runs without maintaining a separate artifact store.

GAStreamingSource

Snowflake SnowflakeSep 10, 2026

External secret providers (Preview)

External secret providers are now in preview. If your organization already keeps API keys, database passwords, and similar values in AWS Secrets Manager, Azure Key Vault, or Google Cloud Secret Manager, Snowflake can read those values when a query needs them, so you don't have to maintain a second copy in a Snowflake secret .

PreviewSQLSecurityDeveloper toolsSource