It's pretty rare these days for games older than a few years to receive further patches and updates. However, Blizzard Entertainment is still committed to keeping their most popular titles working on modern hardware, which is why they've released a new patch for Warcraft III: Reign of Chaos.
Warcraft III is now 14 years old after it launched in July 2002, supporting operating systems from Windows 98 to Windows XP. Now that most gamers have moved on to Windows 7 or Windows 10, Blizzard has released Patch 1.27a for the game that adds in compatibility for Microsoft's newer operating systems.
The patch also includes a new installer for Mac OS X 10.10 and 10.11, which now allows Warcraft III to work on modern versions of Mac. There are still some lingering issues with the game, such as minor graphical issues and issues with save game locations, but in general the game should work just fine on today's PCs, even those that aren't suited to gaming.
This won't be the final patch for Warcraft III. A developer for the classic game posted on Blizzard's Battle.net forums, stating that they're still working "on a balance change and new map pool" which gamers will soon see in the form of a new update.
If you haven't played Warcraft III or want to revisit a critically acclaimed classic, you can buy a copy through Blizzard's online store for $10.