Breaking Changes Without Breaking Users - Lessons from Packit 1.0

Learn how to implement breaking changes in software projects without disrupting users through this conference talk from DevConf.CZ 2025. Discover the strategic approach taken during Packit 1.0.0 release, where breaking changes needed to be introduced to a CLI tool that powers CI services across numerous open-source projects. Explore the comprehensive mitigation strategy that included implementing deprecation processes months before release, developing effective communication strategies with users, and creating technical solutions to automate the migration process. Examine real-world data on the success of this approach and gain insights into what worked well and what challenges emerged during implementation. Participate in a structured feedback session where you can share your own experiences with managing breaking changes and contribute to improving future software releases.