Sad news: apparently this will be the last version of Phoenix Slides. From the developer's website:
"What happened to the "donations" button?
I am grateful to everyone who has contributed over the years: localizers, icon designers, bug reporters, and all those who made donations. Unfortunately, circumstances prevent me from actively continuing development of Phoenix Slides in the foreseeable future, and I think it is appropriate to retire the donation button.
If you like Phoenix Slides, and you appreciate the fact this incredible piece of software is available to you for free (I am being very modest here, of course), I encourage you to pay-it-forward, as appropriate to your means and your talents.
You are still welcome to contact me for whatever reason, of course."
Thanks for all your hard work over the years, Dominic. Best wishes to you.