Why has Libertinus Sans bold italic disappeared in the web app?

I recently noticed, but I am not sure how long it has been the case, that bold italic (strong emphasized) has quietly disappeared from the Libertinus Sans font in the web app. It works fine locally.

For comparison, Libertinus Serif is shown first with the expected result.

The problem exists in 0.12.0, 0.13.0, 0.13.1, and current dev. Testing on another browser, and on another system, gives the same result.

#[
  #set text(font: "Libertinus Serif")
= _italic_ | *bold* | *_bold italic_*
  _italic_ | *bold* | *_bold italic_*
]

#[
  #set text(font: "Libertinus Sans")
= _italic_ | *bold* | *_bold italic_*
  _italic_ | *bold* | *_bold italic_*
]

Result:

1 Like

As far as I can tell, there simply isn’t a Libertinus Sans Bold Italic face. There is neither one in the official release from the libertinus repository on GitHub nor on Google fonts.

What I can say for sure is that it never existed in the web app.

2 Likes

Well, that does appear to be the case today. There was a sans bold italic – Khaled Hosny, the previous maintainer, has an August 2017 commit with the comment “add Latin bold italic sans-serif alphabet,” and I have the font on my local installation. Khaled may have removed it before handing the project over to the current maintainer, Caleb Maclennan, but the change log does not appear to indicate removal at any point.
LaTeX apparently fakes it with its libertinus-otf package.
There is at least one open issue requesting its reinstatement, but I don’t expect to see any quick action. Activity on the font family has been very quiet for a while and I have one open issue

I will move my copy to a deprecated tree and look for another heading font.