This question already has an answer here:
While I was on vacation my boss worked on my software project trying to fix some things. What ended up happening is that nothing was really fixed and instead a bunch of bugs were created. This caused me a week of unnecessary work almost. This is not the first time this has happened. However, it happens far and between (mostly when I'm not around).
Since he is my boss this puts me in an awkward position. Next time he wants to work on it should I tell him to run any big changes through me and why? Should comment on this now? If it is brought up why it is taking me longer than usual should I bring this up (or should I just bring it up just in case it is crossing his mind)? If I do bring it up how should I do it while being respectful and professional?