This is not how software works. Although I guess this isn't quite as catchy:
Assume all software is broken at all times. Constantly try to ensure it works and is secure. Sometimes updates break things. Test before production. Ensure test environments are similar to production. You're going to break things.
Assume all software is broken at all times. Constantly try to ensure it works and is secure. Sometimes updates break things. Test before production. Ensure test environments are similar to production. You're going to break things.