Flutter is Google's UI toolkit for building beautiful, natively compiled applications for mobile, web, desktop, and embedded devices from a single codebase. The latest release of Flutter 2.2 offers updates that make it easier to use than ever. Bitrise, a Mobile DevOps platform, supports Flutter apps with various features such as native app development, easy code signing, and deployment to testers and app stores. To migrate a Flutter app from Jenkins to Bitrise, one needs to create a free account, add the repository, set up the build configuration for Flutter apps, and configure the build workflow with Steps such as managing dependencies, running UI tests, and deploying Android and iOS apps. The process involves adding Environment Variables, selecting integration Steps, and setting up Webhooks. With Bitrise, one can reduce manual tasks, speed up the CI/CD pipeline, and improve app release efficiency.