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What’s changed from Replit Agent 3 to Agent 4

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Agent 4 evolves the tools you already know. See how Design Mode, collaboration, and the build workflow have been transformed for every builder.

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Blogs Replit

BlogsReplit Enterprise, Now Self-ServeReplit BlogsUnlocking a New Way to Build Enterprise Data AppsReplit BlogsSo you suspect you have a memory leak... | ReplitReplit Blogswith Solidity on ReplitReplit BlogsRecapping the SPC-Replit AI HackathonReplit BlogsReplit x India (Part 1)Replit BlogsBehind Modem.dev’s Product Velocity - NeonNeon BlogsWhere Agents Meet Infrastructure: Encore, Leap, and Neon - NeonNeon BlogsUsing Windsurf Cascade and Neon MCP for Agent-Driven Database Interaction - NeonNeon Products & ServicesSpeech AI for Voice Agents | AssemblyAIAssemblyai BlogsFlight Plans: Templates for AI-Native Data PipelinesMotherduck BlogsWhy sandboxing your agent is not enoughCncf BlogsHeyGen + Agent.ai: Bringing AI video to the No. 1 professional agent networkHeygen LearnBuilding Filesystem AgentsVercel BlogsBuilding a News App with Replit Agent: A Step-by-Step Guide - NeonNeon EventsIntroducing Flights: Agent-Native Data Pipelines in MotherDuckMotherduck BlogsDon't Fear the Agents - AI on the Data LakehouseMotherduck BlogsContainerize Your Apps with Ask GordonDocker BlogsBenchmarking AI agent retrieval strategies on Kubernetes bug fixesCncf BlogsWhat’s New at HeyGen: July 2026 Product UpdatesHeygen