Adobe has released the version 8.1.2 of Adobe Reader which is a critical update that patches a security vulnerability. Adobe recommends that users patch their version of Adobe Reader to the newest as soon as possible to close the security hole. The strange thing about this update is that only 26 of the 27 fixes of this update are listed in the release notes and that the security vulnerability that has been fixed is not listed on that page.
Adobe just mentioned that “the Adobe Reader 8.1.2 update addresses a number of customer workflow issues and security vulnerabilities while providing more stability.” Either they have forgotten to include the information in the release notes or they did not want to publish them officially.
It does not really matter for us end users anyway. If you use Adobe Reader head out now and download the latest version of Adobe Reader to be on the safe side.

Adobe Reader and Acrobat Critical Security Update
Adobe Reader Security Vulnerabilities
Why am I having problems trying to update to Adobe Reader 8.1.2
I’m trying to update my adobe and my computer won’t let me. Do you have any suggestions? Thanks.
Adobe are aware of an issue with the update, there is a fix for this on the Adobe website.
I have a laserjet 2100 printer and adobe keeps telling me that it cannot find the printer.