This is not true. Valenti is not an abandoned theme.....
Valenti v5.6 is in beta right now and it’s shaping out to be a very big update, particularly framework wise. It’s a HUGE re-write and modernisation of lots of code. The performance is much better, the practises are even cleaner and the theme is now even compatible with PHP 7.4 ;)
However, we currently only have 2 beta testers helping beta test it, the more beta testers testing it, the more broad/quicker the feedback will be.
You can help speed the release up.
The latest beta version is due out very soon, so if you can help beta test it would be very helpful to Valenti. If you can, please open a private ticket at http://codetipi.ticksy.com titled “Valenti beta test” and include the url where you can test it – ideally it’s a staging site.
Leaving a 1 star rating won't help the update be officially released sooner, becoming a beta tester will.