Clipper has solid Mysqli support, and has had for some time. I'm using it with PHP 5.5.15 on my local server without problems. I develop with the config set to throw errors on deprecated functions, but don't see them in general.
Though it might be an understatement to say things have been a little quiet lately, version 1.3 was released recently. The latest version of Evo I've used for real was 1.0.12. I don't think the key API calls and so on have diverged far enough to make snippet transplants unrealistic - I still pick up some Evo extras as and when required and use them without headaches. I haven't tried the Evo package manager, but suspect it's quite different from Clipper's. And I haven't tried MultiTV on Clipper. No doubt Jako can comment on that!
If you're committed to the Evo way as opposed to Revo, and are looking for a future-compatible option, maybe you should give Clipper a try.
;) KP