What’s changed from Replit Agent 3 to Agent 4
Replit has launched Agent 4, a significant update to its AI-powered development platform. The new version introduces a Design Canvas, replacing the previous Design Mode, which offers an infinite workspace supporting various artifact types and live previews. Collaboration has been overhauled from a fork-and-merge model to a single shared project with agent-assisted merging, allowing real-time teamwork. Additionally, the planning process is now integrated into the building phase, enabling users to develop concurrently without sequential task completion. AI
IMPACT Replit's Agent 4 update enhances developer productivity through improved design, real-time collaboration, and integrated planning.