Docker Desktop 4.42 推出原生 IPv6、集成 MCP 工具包和 AI 模型打包功能

Docker Desktop 4.42 Release on June 10, 2025:
- Enhanced networking flexibility with native IPv6 support (dual-stack, IPv4-only, IPv6-only modes with intelligent DNS resolution).
- Integrated Model, Client, Protocol (MCP) Toolkit directly into Docker Desktop for easy discovery and management of over 100 MCP servers without extensions.
- MCP tools run in isolated containers with signed images and secret management.
- AI workflows improved with support for Qualcomm-based Windows devices, integration with Docker Engine on Linux, and upgraded GUI.
- Can package GGUF-format AI models into OCI-compliant images and distribute to Docker Hub or private registries.
Social Media Highlights: Docker advocate Ajeet Singh Raina highlighted the release's new capabilities.
Challenges Reported:
- Many macOS users reported significant instability after the release, with containers becoming unresponsive and failing due to networking errors like cURL error 35. The problem was traced to automatic proxy settings. Reverting to Docker Desktop 4.41.2 resolved the issue.
- On GitHub issue #7698, some users reported that Docker Desktop simply fails to launch after upgrading to version 4.42.0, with the Docker daemon not starting and returning errors about the daemon socket. Other issues include failures to expose container ports when running behind connection managers.
- Some Reddit feedback suggests that Docker has fundamental performance issues on macOS, with excessive memory usage even with a single container running and macOS swap usage increasing over time. Community members suggest alternatives like Colima or Orbstack.
Docker Team Response: A Docker team member acknowledged the proxy-related errors and requested diagnostic logs. GitHub threads remain active tracking startup failures, window hangs, and networking faults. Most new users should be able to utilize the update benefits without these challenges after they were addressed.