Unfortunately this is simply not how development works. You will not find any software that does not accidentally introduce bugs on changes. Its simply not possible. Microsoft, apple, google and more, all release hundreds of fixes every release.
As a prime example, the last release of windows, my taskbar had all icons pushed to the left. These have thousands of testers, and millions of people testing the beta. Its simple nature of the game, and we fix important issues like these as quickly as possible