There has been much speculation recently about Windows Vista SP1 Beta, and even
rumors and sightings around the web. There was also a "leak" of some pre-Beta patches a week or so ago. Microsoft has now officially released them.
Microsoft still isn't commenting on when a beta of Service Pack 1 for Vista will be officially released (our money is on November), but the company has posted two updates that are expected to be part of that final package: the "performance and reliability" update and the "compatibility and reliability" update. These are official releases.
The "standalone updates" have been posted to Microsoft's support site, and users will need to validate their Vista installs via WGA to download them. A Microsoft spokesperson would not indicate when the patches would find their way to Windows Update, but the company confirms that these are not beta releases.
Interesting how both sets of updates have the word "reliability" in their title. I haven't personally had a chance to try these yet, but some postings around the web indicate a better Vista experience after installing the updates.