Though it's not exactly evolved six years after release, the PC and Mac versions of Halo are still receiving patches, and by the console developer Bungie (not the PC developer Gearbox), no less.

Originally tested back in August, version 1.09 (PC) aimed to fix an issue 64-bit users were having whereby the game was detecting no RAM in their >4GB systems, as well as another relating to some Microsoft security updates, affecting all users' compatibility.

The patch went live last week, fixing another couple of issues too, though with no announcement as such. Anyhow, the PC version is at the source, applicable for regular and Collector's Editions, though can also be installed with the game's auto-update service. The Mac version should be live now via the auto-updater.

Release notes are below.

• Fixes an incompatibility with some Windows Updates related to recent IE security fixes.
• Fixes a (harmless) nag message on 64-bit systems with >4GB RAM that you don't have enough RAM. It now stops counting at 1GB since it doesn't care if you have more than that anyway.
  
• Fixes a bug which could allow an attacker to cause the server app to hang.
  
• Fixes a bug which could allow a careless typist to cause the server app to hang via Rcon.