offline support of unicode version 16 or 17

[var2p]

• does it support rendering of unicode fonts without any active internet connection?

[amake]

I'm not clear what you mean by "Unicode font".

• Fira Code is bundled with the app
• Other fonts only need to be downloaded once; afterwards the selected font will be cached locally for offline use (unless you go to Settings > Clear cache)

[amake]

As for support for specific Unicode versions: that's not really how things work.

Fonts don't usually target Unicode versions; they will cover some set of code points, usually tied to the scripts (Latin, Cyrillic, etc.) that they aim to support. When a new Unicode version comes out with some new set of defined code points, some font authors may update their fonts to provide glyphs for those code points, but in general they do not.

Most of the fonts available in Orgro are sourced from Google Fonts; I have no control or knowledge of when or how those fonts are updated.

In the cases of specifically Iosevka, FiraGO, Victor Mono, Terminus, and Cascadia Code: these I offer separately from Google Fonts and I control when they are updated. I generally chase the latest versions of each of these, but Iosevka is updated quite often so Orgro is usually behind by a few patch releases.

If you want the "best" Unicode coverage I think Iosevka is probably the best choice, but I have not confirmed that.