Frink Will running the dev master give me any features that flarum7.1 doesn't have?
Running dev-master at this time is only recommended for extension developers to prepare their extensions for the upcoming version.
Please, I urge you, do not install dev-master if you want to actually use the forum. We will not support your Flarum installation. This includes when you want to upgrade to the actual beta 8 or when you encounter issues you are not able to file an adequate (reproducible) report for.