generated: '2026-07-19'
method: searched
source: https://doc.akka.io/reference/release-notes.html
url: https://doc.akka.io/reference/release-notes.html
scheme: semver
current:
  sdk: 3.6.0
  cli: 3.0.65
  runtime: 1.6.3
notes: Recent window only; the live release notes page is the source of truth.
entries:
  - component: Akka SDK
    version: 3.6.0
    date: '2026-05'
    breaking: true
    highlights:
      - Autonomous agents
      - Rewritten multi-agent orchestration documentation
      - Support for large session memory
      - Removal of APIs deprecated since SDK 3.4.x
      - Runtime bumped to 1.6.3 with a Java 25 base image and Langchain4J 1.15.0
  - component: Akka CLI
    version: 3.0.64
    date: '2026-05'
    breaking: false
    highlights:
      - Support for autonomous agents
  - component: Akka SDK
    version: 3.5.19
    date: '2026-04'
    breaking: false
    highlights:
      - Object store support (S3, GCS, Azure)
      - Azure OpenAI and MistralAI model providers
      - Prompt caching for Anthropic and Bedrock
      - Workflow termination
      - Session memory interceptor
      - Custom OpenTelemetry metrics
  - component: Akka SDK
    version: 3.5.18
    date: '2026-04'
    breaking: false
    highlights:
      - Automatic expiry for entities
      - Key Value Entity notifications
      - Consumer testkit improvements
  - component: Akka SDK
    version: 3.5.16
    date: '2026-03'
    breaking: false
    highlights:
      - Google Vertex AI model support
      - Access to deployed services from dev mode
      - Notifications for event sourced entities