Alternatives to Wire library for I2C
I don't see any objection to using DSS Circuits I2C Master Library.

It may not have been updated for a couple of years, but if it works it doesn't need to be. It's not as if libraries for micro-controllers have to support new printer drivers, video drivers, etc.

If it works, it works.

The chip hasn't changed, and the only real reason for updates these days is if the IDE changes (or the compiler changes) in such a way that it introduces compile errors. Such things have happened fairly recently with things like PROGMEM having tighter rules, for example.