The name of LaTeX biblatex package has always been written all-lowercase except at the start of sentences, _i.e._ it follows normal capitalisation rules in English. Currently, JabRef calls it 'BibLaTeX' both on the website and in the program: please can this be corrected.
Refs https://github.com/koppor/jabref/issues/73 - I update it accordingly.
@josephwright Could you also correct the spelling on CTAN: https://www.ctan.org/pkg/biblatex?lang=en ?
It is this page that led us to think that 'BibLaTeX' was correct.

Please note there are no news since nearly 5 years on CTAN on biblatex.
I double checked with CTAN's webmaster and they say that the feed generation works. Maybe there were no public announcements on CTAN?
@lenhard I'll talk to CTAN about their text: the official documentation has always had all-lowercase.
@koppor I know there have been lots of releases! I guess something odd it the way they've added this stuff (it did not used to be there).
Minor comment for CTAN: Even worse, there is biblateX --> https://www.ctan.org/ctan-ann/id/[email protected]
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@lenhard I'll talk to CTAN about their text: the official documentation has always had all-lowercase.