Releasebot
Latest Create account

Claude Developer Platform Updates & Release Notes

Follow

122 updates curated from 2 sources by the Releasebot Team. Last updated: May 19, 2026

Get this feed:
  • May 19, 2026
    • Date parsed from source:
      May 19, 2026
    • First seen by Releasebot:
      May 19, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    May 19, 2026

    Claude Developer Platform adds MCP tunnels in Research Preview, self-hosted sandboxes for Claude Managed Agents, and live updates to MCP server and tool settings during active sessions. It also improves handling of large tool outputs by spilling them to a sandbox file.

    • MCP tunnels is now available as a Research Preview, so you can connect to MCP servers in your private network.
    • Self-hosted sandboxes are now available for Claude Managed Agents, as an alternative to running tool execution in Anthropic's infrastructure. See Self-hosted sandboxes.
    • With Claude Managed Agents, you can now update the agent's MCP server and tool configurations associated with an active session.
    • With Claude Managed Agents, large outputs from agent_toolset and MCP tools exceeding 100K tokens are now automatically spilled to a file in the sandbox. The model receives a truncated preview with the file path and can read the full content from there.
    Original source
  • May 18, 2026
    • Date parsed from source:
      May 18, 2026
    • First seen by Releasebot:
      May 19, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    May 18, 2026

    Claude Developer Platform now returns richer SEC filing data to ground financial research and due diligence in primary sources.

    • The web search tool now returns richer SEC filing data, making it easier to ground financial research agents, earnings analysis, and due-diligence workflows in primary sources with citations.
    Original source

  • All of your release notes in one feed

    Join Releasebot and get updates from Anthropic and hundreds of other software products.

    Create account
  • May 13, 2026
    • Date parsed from source:
      May 13, 2026
    • First seen by Releasebot:
      May 19, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    May 13, 2026

    Claude Developer Platform launches cache diagnostics in public beta to explain prompt cache misses in Messages.

    • We've launched cache diagnostics in public beta. Pass diagnostics.previous_message_id on a Messages request and the API reports a cache_miss_reason explaining where the prompt cache prefix diverged from the previous turn. Include the cache-diagnosis-2026-04-07 beta header in your requests.
    Original source
  • May 12, 2026
    • Date parsed from source:
      May 12, 2026
    • First seen by Releasebot:
      May 13, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    May 12, 2026

    Claude Developer Platform adds Fast mode support for Claude Opus 4.7, bringing faster output token generation in research preview.

    • Fast mode (research preview) now supports Claude Opus 4.7. Set speed: "fast" with model: "claude-opus-4-7" and the fast-mode-2026-02-01 beta header for significantly faster output token generation at premium pricing. Pricing, rate limits, and access are the same as for Opus 4.6 fast mode; interested customers should join the waitlist.
    Original source
  • May 11, 2026
    • Date parsed from source:
      May 11, 2026
    • First seen by Releasebot:
      May 11, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    May 11, 2026

    Claude Developer Platform launches Claude Platform on AWS with AWS billing, IAM, and native access to core Claude APIs and tools.

    • We've launched Claude Platform on AWS, bringing the Claude API to Anthropic-managed infrastructure accessible through AWS, with AWS billing and IAM authentication. Access the full Messages API, Files API, Message Batches API, Claude Managed Agents, Agent Skills, code execution, and tool use through native AWS endpoints. Learn more in Claude Platform on AWS.
    Original source
  • May 6, 2026
    • Date parsed from source:
      May 6, 2026
    • First seen by Releasebot:
      May 6, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    May 6, 2026

    Claude Developer Platform adds public beta support for multiagent sessions and outcomes, plus new webhook support for Claude Managed Agents. It also expands vault credential background refresh and adds more filtering and sorting options for sessions and events.

    • Multiagent sessions and Outcomes are now in public beta under the standard managed-agents-2026-04-01 beta header.

    • Vault credential background refresh is now supported for mcp_oauth credentials. See Authenticate with vaults.

    • Webhooks for Claude Managed Agents are now supported. Webhook event types include session and vault lifecycle events. See Subscribe to webhooks.

    • Additional filtering and sorting options are now supported. Sessions can be filtered by status, and events can be filtered by type. Events can now be filtered by creation time.

    Original source
  • Apr 30, 2026
    • Date parsed from source:
      Apr 30, 2026
    • First seen by Releasebot:
      May 1, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 30, 2026

    Claude Developer Platform retires the 1M token context beta for Sonnet 4.5 and 4, guiding users to 4.6 models for general availability.

    • We've retired the 1M token context window beta (context-1m-2025-08-07) for Claude Sonnet 4.5 and Claude Sonnet 4. The beta header now has no effect on these models, and requests exceeding the standard 200k-token context window return an error. To use the 1M context window, migrate to Claude Sonnet 4.6 or Claude Opus 4.6, where it's generally available at standard pricing with no beta header required.
    Original source
  • Apr 24, 2026
    • Date parsed from source:
      Apr 24, 2026
    • First seen by Releasebot:
      Apr 25, 2026
    • Modified by Releasebot:
      May 6, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 24, 2026

    Claude Developer Platform releases Rate Limits API for admins to programmatically query organization and workspace limits.

    • We've released the Rate Limits API, allowing administrators to programmatically query the rate limits configured for their organization and workspaces.
    Original source
  • Apr 23, 2026
    • Date parsed from source:
      Apr 23, 2026
    • First seen by Releasebot:
      Apr 24, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 23, 2026

    Claude Developer Platform adds Memory for Claude Managed Agents in public beta.

    • Memory for Claude Managed Agents is now in public beta under the standard managed-agents-2026-04-01 header. See Using agent memory for the full integration guide.
    Original source
  • Apr 20, 2026
    • Date parsed from source:
      Apr 20, 2026
    • First seen by Releasebot:
      Apr 21, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 20, 2026

    Claude Developer Platform retires Claude Haiku 3 and recommends upgrading to Claude Haiku 4.5.

    • We've retired the Claude Haiku 3 model (claude-3-haiku-20240307). All requests to this model will now return an error. We recommend upgrading to Claude Haiku 4.5.
    Original source
  • Apr 16, 2026
    • Date parsed from source:
      Apr 16, 2026
    • First seen by Releasebot:
      Apr 16, 2026
    • Modified by Releasebot:
      Apr 19, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 16, 2026

    Claude Developer Platform releases Claude Opus 4.7, its most capable generally available model for complex reasoning and agentic coding, at the same pricing as Opus 4.6. It also expands Claude in Amazon Bedrock to all customers, with Opus 4.7 and Haiku 4.5 available in 27 AWS regions.

    • We've launched Claude Opus 4.7, our most capable generally available model for complex reasoning and agentic coding, at the same $5 / $25 per MTok pricing as Opus 4.6. See What's new in Claude Opus 4.7 for capability improvements, new features, and the updated tokenizer. Opus 4.7 includes API breaking changes versus Opus 4.6; see Migrating to Claude Opus 4.7 before upgrading.

    • Claude in Amazon Bedrock is now open to all Amazon Bedrock customers. Claude Opus 4.7 and Claude Haiku 4.5 are available self-serve from the Bedrock console through the Messages API endpoint at /anthropic/v1/messages, in 27 AWS regions with global and regional endpoints.

    Original source
  • Apr 14, 2026
    • Date parsed from source:
      Apr 14, 2026
    • First seen by Releasebot:
      Apr 15, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 14, 2026

    Claude Developer Platform deprecates Claude Sonnet 4 and Claude Opus 4 and points users to newer 4.6 models.

    • We announced the deprecation of the Claude Sonnet 4 model (claude-sonnet-4-20250514) and the Claude Opus 4 model (claude-opus-4-20250514), with retirement on the Claude API scheduled for June 15, 2026. We recommend migrating to Claude Sonnet 4.6 and Claude Opus 4.6 respectively. Read more in model deprecations.
    Original source
  • Apr 9, 2026
    • Date parsed from source:
      Apr 9, 2026
    • First seen by Releasebot:
      Apr 10, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 9, 2026

    Claude Developer Platform launches advisor tool public beta for faster agentic workloads with strategic guidance.

    • We've launched the advisor tool in public beta. Pair a faster executor model with a higher-intelligence advisor model that provides strategic guidance mid-generation, so long-horizon agentic workloads get close to advisor-solo quality while the bulk of token generation happens at executor-model rates. Include the beta header advisor-tool-2026-03-01 in your requests.
    Original source
  • Apr 8, 2026
    • Date parsed from source:
      Apr 8, 2026
    • First seen by Releasebot:
      Apr 9, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 8, 2026

    Claude Developer Platform launches Claude Managed Agents in public beta and introduces the ant CLI, bringing managed autonomous agents, secure sandboxing, built-in tools, SSE streaming, and faster API workflows with Claude Code integration and YAML resource versioning.

    • We've launched Claude Managed Agents in public beta, a fully managed agent harness for running Claude as an autonomous agent with secure sandboxing, built-in tools, and server-sent event streaming. Create agents, configure containers, and run sessions through the API. All endpoints require the managed-agents-2026-04-01 beta header. Learn more in Claude Managed Agents overview.

    • We've launched the ant CLI, a command-line client for the Claude API that enables faster interaction with the Claude API, native integration with Claude Code, and versioning of API resources in YAML files. Learn more in the CLI reference.

    Original source
  • Apr 7, 2026
    • Date parsed from source:
      Apr 7, 2026
    • First seen by Releasebot:
      Apr 7, 2026
    Anthropic logo

    Claude Developer Platform by Anthropic

    April 7, 2026

    Claude Developer Platform introduces Claude Mythos Preview as a gated research preview for defensive cybersecurity work and brings the Messages API to Amazon Bedrock as a research preview, with a new Claude endpoint on AWS-managed infrastructure and zero operator access.

    • We announced Claude Mythos Preview is available as a gated research preview for defensive cybersecurity work as part of Project Glasswing. Access is invitation-only.

    • The Messages API is now available on Amazon Bedrock as a research preview. The new Claude in Amazon Bedrock endpoint at /anthropic/v1/messages uses the same request shape as the first-party Claude API and runs on AWS-managed infrastructure with zero operator access. Available in us-east-1; contact your Anthropic account executive to request access. Learn more in Claude in Amazon Bedrock.

    Original source
Releasebot

Curated by the Releasebot team

Releasebot is an aggregator of official product update announcements from hundreds of software vendors and thousands of sources.

Our editorial process involves the manual review and audit of release notes procured with the help of automated systems.

About us Our methodology

Similar to Claude Developer Platform with recent updates: