Folks,
I've now updated the Submitting_Patches and Git_Wine_Tutorial to document the new merge request process. Reviews and improvements are welcome.
As you can see in the docs, and as discussed previously, signoffs are no longer required on merge requests. This is replaced by the requirement to explicitly approve your own merge request if it contains commits authored by someone else (if it's all your own work, explicit approval is not necessary).
Also note that the real name requirement on commits now extends to Gitlab as well. Please make sure to use your real name in your Gitlab profile so that it matches your commits.
If you haven't switched to sending merge requests yet, please try to do so in the near future. Mailing patches to wine-devel is now officially discouraged (except for vkd3d which hasn't been moved over yet).
If you encounter things that you can't figure out and that the documentation doesn't address, please report them so that we can improve the docs (or even better, update the Wiki yourself...)