It is maintained. They just do it internally. Latest versions are periodically synced to Github. Most teams at Meta are still using Hack.

Are we really at the point where last commit less than two months ago means something is unmaintained?

Hi, Paul from the Open Source Team here at Meta. HHVM is still in use and there are no changes to the level of maintenance the open source project gets. There's no conspiracy, no quiet quitting. The reality is that we just had some issues that affected our automatic syncing a little while back and HHVM got stuck. Since use outside of Meta is relatively low, unsticking it was just lower priority.

But we see that you've noticed and I think the folks working on HHVM internally will get that corrected soon!

I'm a little surprised HHVM is still around, last time I checked it was barely (if at all) faster than vanilla PHP and PHP now has a lot of the comparible features like progressive type safety and concurrency (to an extent).

There are even competing PHP compilers/interpreters/runtimes now like there has been for a while with other languages.

I'm guessing there is some benefit to running HHVM on the type of large scale deployments Facebook has or there wouldn't be a need to keep it around.

I find it interesting that it’s still getting a few github stars monthly[1]. I wonder if that’s organic discovery or an appetite for an alternative PHP?

1.https://github.com/trending/hack?since=monthly

Is it getting the JQuery treatment now that type hinting is almost fully in php?

From what I understand it is still a quite popular language at meta, and strongly supported and preferred for lots of development, though definitely never got much traction externally.

It seems to me that this project is still being maintained and it isn't archived, if it is not maintained and not archived then it would present a problem.

Is the HHVM still in use at Facebook? Or did PHP catch up?

I'm not surprised; PHP 7 and PHP 8 brought most of the performance improvements and a lot of the good tweaks into the main language.

I haven't looked much at it since it was called HHVM, but I see it also hasn't seen a release since 2016.

This really does not come as a surprise. PHP 7 erased the performance gains that Hack had, and PHP 8 brought a lot of the last few missing pieces that helped modernize PHP.

Hack was heavily optimized for Facebook-sized setups and was never intended to run in the places that PHP is most often run from (such as cPanel servers), so it never really picked up much traction among the PHP world.

Non-PHP developers never even considered it as an option, as they probably didn't consider PHP as an option either.

Basically, it was one of those projects that may have been a good idea when it was released (although perhaps just contributing more to PHP might have been the better thing for Facebook to do, but that's a different story), and it's time has now passed. I'm just surprised it took this long for them to end work on it, honestly

Huh, no discussion nearly an hour after posting. Either a time zone thing or a conspicuous silence.

Or nobody cares about Hack anymore?