Mac users are not the only group who know what those words mean.

Yeah, I don't use macOS and I don't own any Apple computer. But a weird California location name + version number 10 is a dead giveaway.

didn't know Catalina was a California location either, to me is just a female name. I actually though she might be a contributor to SSH project.

You thought "Catalina 10.15.4" referred to a human woman? Come on.

A prominent branch of a project named after the maintainer, accompanied by a version number?

That's a reasonable option for what "Catalina" might mean from context clues. Have you never run Alan Cox or Con Kolivas?

> That's a reasonable option for what "Catalina" might mean from context clues.

Agreed! But my comment was in reply to someone who wants you to believe that he genuinely read "99.999%" as a claim about the size of the Mac user base. His game is not one of context clues, and you don't need to play it.

yeah the numbers were weird but thought there's plenty of crazy usernames out there. Didn't pay a lot of attention though, went through the comments and saw it was about Mac and I could safely ignore it.

Sounds like you used the site as intended.

On a website whose primary audience is technology professionals, it's reasonable to assume that a significant portion of the audience can recognise the version name of a computer operating system that is at least the second most-popular in the world, and possibly the most popular among this site's audience.

But it's also part of HN's ethos that not everything has to be spelled out all the time, and that it's OK if users sometimes have to "work a little":

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...

People who have or care about Apple products were likely get that, but the title says "SSH", not "Apple". "Catalina 10" means absolutely nothing to almost everyone.

Those people can search it up, rather than being told about "Apple's proprietary MacOS [sic] operating system".

it's more like referring to the specific animal that represents the release of Ubuntu you want to talk about.

Not that many people would understand 'I think Eoan Ermine 19.10 broke SSH'.

Plenty of people understand 'I think Ubuntu 19.10 broke SSH', or 'I think maxOS 10.15.4 broke SSH'.

To be fair, I would have written 'macOS 10.15.4' rather than 'Catalina 10.15.4' partly for this reason (macOS is a stronger brand), but also partly because I think it's more accurate/less redundant.