Which Merge Request Should Be Processed First?

Honestly, it shouldn't matter which is merged first unless both branches make changes to the same lines of code. If you merge A before B, your colleague can rebase B onto the updated main. Conversely, if B goes first, you can rebase A after. It all comes down to whether there are overlapping changes or not.

The order of merges isn’t critical as long as the changes don't overlap too much. Whoever submits their merge request first should ideally go first. However, it sounds like there might be some underlying issues with the branches here. If you're getting conflicts, it might mean that your branch has diverged significantly from what’s on the main. Remember to always pull the latest changes into your branch before submitting, regardless of who merges first.

That's right, it really depends on the specific changes involved. If A and B don't touch the same lines, you can go either way. Just make sure to keep rebasing your branches frequently to avoid conflicts!

Generally, merging happens in a first-ready, first-merged manner. It’s pretty rare for two merge requests to conflict badly in a well-maintained codebase. In your situation, it’s likely easier for your colleague to address the small changes in their request compared to you handling the larger, conflict-heavy one. So, to minimize overall workload, you should merge your request first.

The best practice is to regularly rebase your branches against the main branch. Ideally, you should be doing this several times a day or at least whenever there’s a new merge to keep everything up to date and minimize conflicts.