On April 19, 2011, Valve's puzzle platformer "Portal 2" was released to great acclaim. It was a tremendous success, and its popularity continues to this day: according to SteamCharts, more than 3,100 people are playing it at this very moment, not bad at all for a 10-year-old puzzle game.

It's not just gamers who keep playing: yesterday, Valve released an update that includes support for Vulkan rendering, improved descriptions of advanced video settings, "smarter" default video settings, and user-created Perpetual Testing Initiative puzzles. updates, including faster compile times for user-created Perpetual Testing Initiative puzzles.

Here are the full list of changes:

There are also a number of bug fixes:

I respect Valve's dedication to why they are still patching Portal 2, but it's a 10 year old game, so I'm not sure Valve has been doing so since mid-2017 slowly but fairly steadily releasing patches for Portal 2, with the last patch being a small fix released in July 2020.