Apple today rolled out 10.6.2 update to Snow Leopard OS X which includes fixes to 40+ bugs main one included nasty guest account bug.The other bugs fixed improve stability and fix issues with various apps.You can take a look a whats changed here.Life hacker reports the update to be around 157.7 MB.Check screenshot below,but Gizmodo reports 507.3 MB.This is because the update varies for different versions for different configurations.

Life hacker update

Gizmodo update

The main improvements include guest account error fix,  address book is now working and the 4 finger gesture which is now  is made smother.A log of all the changes in addition to this can be found here.

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