...but an update to 1 just happened.
http://kotaku.com/half-life-was-updated-today-1796790896
Some bug/crash fixes apparently, but you KNOW what memes will start spreading around the web now... #BadJokesConfirmed
For a game that's nearly 20 there's still an active modding community around it, not to mention the speed running (https://youtu.be/LS1ZsYsfV4c?t=20m28s) community, it's still an amazingly versatile and playable game (now with slightly less crashes) so good on 'em for still TC of very old B.
It would be nice of Valve made games again - I've read online they have no organizational structure and for some devs at least (http://www.gamesindustry.biz/articles/2013-07-08-valves-flat-structure-leads-to-cliques-say-ex-employee) it's a somewhat non-functional way of getting things done. Snippets from Valve's handbook (2012 but likely still relevant) http://www.forevergeek.com/10-things-learned-from-valves-employee-handbook/