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Name Modified Size InfoDownloads / Week
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docker-agent-windows-arm64.exe 2026-05-07 93.1 MB
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docker-agent-darwin-amd64 2026-05-07 100.2 MB
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docker-agent-windows-amd64.exe 2026-05-07 100.7 MB
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docker-agent-darwin-arm64 2026-05-07 93.1 MB
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docker-agent-linux-amd64 2026-05-07 117.2 MB
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docker-agent-linux-arm64 2026-05-07 110.8 MB
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README.md 2026-05-07 12.9 kB
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v1.55.0 source code.tar.gz 2026-05-07 8.4 MB
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v1.55.0 source code.zip 2026-05-07 9.2 MB
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Totals: 9 Items   632.7 MB 0

This release introduces significant security hardening, attachment system foundations, and enhanced configuration capabilities.

What's New

  • Adds HCL configuration format support as an alternative to YAML for agent configurations
  • Adds /pause command to toggle the runtime loop at iteration boundaries
  • Adds turn_end hook that fires once per turn regardless of how the turn ended
  • Adds shadow snapshots and /undo command for restoring file changes without modifying session transcript
  • Adds Anthropic Workload Identity Federation support for OIDC-derived authentication
  • Adds attachment system foundations with chat.Document and per-provider document conversion
  • Adds JavaScript/WebAssembly browser build with OpenRouter PKCE support
  • Adds custom request headers support for the fetch toolset with environment variable expansion
  • Adds allow/deny lists for filesystem toolset to sandbox file access
  • Adds wildcard and CIDR pattern support in fetch toolset domain filtering
  • Adds input-shape repair layer for tool calls to handle common model mistakes
  • Adds MCP embedded resource content type support
  • Adds --hook-stop CLI flag for the existing stop event
  • Adds --tool-name flag to override MCP tool identifier
  • Adds --mcp-keepalive flag for MCP server connections

Improvements

  • Expands secret detection with additional patterns for OpenAI, Anthropic, Google, Stripe, Notion, GitLab, Vault, and Slack tokens
  • Speeds up secret redaction with aho-corasick keyword pre-filter
  • Improves markdown rendering performance with single-pass URL scanner optimizations
  • Enhances session ID and install UUID forwarding on gateway-bound requests for better tracing
  • Pauses animation ticks while terminal is blurred to reduce CPU usage
  • Propagates non-interactive mode to child sessions and declines elicitation automatically

Bug Fixes

  • Fixes crash on startup when configuration file is empty
  • Fixes environment variable race in script shell tool execution
  • Fixes data races on session token and message writes
  • Fixes lifecycle supervisor state race condition
  • Fixes infinite loop on hash-prefixed paragraphs in markdown renderer
  • Fixes tab switching and chat scroll functionality while prompts are open
  • Fixes compaction kept-tail mapping after prior summaries
  • Fixes IPv4-mapped IPv6 SSRF bypass in fetch domain matcher
  • Fixes finish_reason stop when tracking usage in OpenAI streams
  • Fixes comment-only SSE events that crash openai-go client

Technical Changes

  • Replaces mise with go-task as the project task runner
  • Splits builtin tools into individual sub-packages for better organization
  • Centralizes model-specific behavior in pkg/modelinfo package
  • Tightens file and directory permissions for per-user data to 0o700/0o600
  • Adds contextual logging throughout codebase for better trace correlation
  • Adds 7 new architectural-sync linting cops that caught 10 real bugs
  • Hardens OAuth with constant-time state comparison and SSRF protection
  • Blocks non-public IPs in API and OpenAPI tools by default
  • Updates jose2go to v1.7.0 to address security vulnerabilities
  • Bumps various Go dependencies including Anthropic SDK, Docker CLI, and OpenTelemetry packages

What's Changed

Full Changelog: https://github.com/docker/docker-agent/compare/v1.54.0...v1.55.0

Source: README.md, updated 2026-05-07