Linked by Thom Holwerda on Sun 16th Dec 2007 17:57 UTC
Windows The first publicly available test release of Vista SP1 has been released a few days ago, release candidate 1. "The Windows Vista Service Pack 1 Release Candidate is now available to the public. In addition to previously released updates, SP1 contains changes focused on addressing specific reliability and performance issues, supporting new types of hardware, and adding support for several new technologies. SP1 also addresses some management, deployment, and support challenges." Ars reports that it finally enables the hotpatching support in Vista.
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RE: no shit
by cetp on Sun 16th Dec 2007 20:15 UTC in reply to "no shit"
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Unix systems gladly replace system libraries that are in use, and just hope that not problems happen because two different versions of the same library are in use simultaneously. The further away from the core libraries you get, the lower the odds of a problem, but it's still a risk. The Unix approach is basically "Let's just go ahead and do it, it'll probably be ok."

Windows takes the safe approach of only updating libraries that are not in use. I'm sure you'd wind up with weird glitches if your apps were using multiple versions of GDI simultaneously. The Windows approach is "It may be ok to update this now, or it may not. Just to be safe, let's not update it until we can guarentee it's safe."

The Vista implementation tries to free up libraries, and if it can, will then update them in place.

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