GitLab 18.4: AI-native development with automation and insight

This post introduces the GitLab Duo AI Catalog for creating and sharing custom agents, Agentic Chat with enhanced session management and user model selection, and the GitLab Knowledge Graph for codebase navigation and RAG. It also details the Fix Failed Pipelines Flow for business-aware pipeline maintenance and introduces GitLab Duo Context Exclusion for granular data protection. Model selection is now generally available, and new MCP tools are added to the MCP server.