• Plugin System Released: Extend Claude Code with custom commands, agents, hooks, and MCP servers from marketplaces
• `/plugin install`, `/plugin enable/disable`, `/plugin marketplace` commands for plugin management
• Repository-level plugin configuration via `extraKnownMarketplaces` for team collaboration
• `/plugin validate` command for validating plugin structure and configuration
• Plugin announcement blog post at https://www.anthropic.com/news/claude-code-plugins
• Plugin documentation available at https://docs.claude.com/en/docs/claude-code/plugins
• Comprehensive error messages and diagnostics via `/doctor` command
• Avoid flickering in `/model` selector
• Improvements to `/help`
• Avoid mentioning hooks in `/resume` summaries
• Changes to the "verbose" setting in `/config` now persist across sessions