AWS CloudFormation 2025 Year In Review

AWS CloudFormation introduced major enhancements in 2025 focused on three areas: accelerating development cycles through pre-deployment validation and IDE integration via Language Server Protocol, improving deployment safety with drift-aware change sets and configuration drift management, and scaling multi-account infrastructure with StackSets deployment ordering. New features include early error detection during change set creation, operation-specific event filtering for faster troubleshooting, stack refactoring capabilities, and AI-powered development through the AWS IaC MCP Server. CloudFormation Hooks now supports managed proactive controls from AWS Control Tower, enabling teams to enforce governance without custom logic. These improvements address common pain points across the infrastructure development lifecycle, from template authoring to multi-region deployments.