Microsoft has ideas of distributing Internet Explorer 8 to the end users through its Automatic updates channels of distributions of updating its Windows Operating systems.The distribution will be started in the third week of April for users running Internet Explorer 6 or Internet Explorer 7 on the Microsoft operating systems Windows XP, Windows Vista, Windows Server 2003 and Windows Server 2008. This will be updated to the corresponding users of windows such as Windows XP, Windows Vista, Windows 2003 Server and Windows 2008 Server users.
The catch word is that Microsoft will not be installing it automatically it will give the choice of option to the users to install it or not to install it.As per my understanding so far IE 8 is better than in every aspect from its predecessor and some website rendering problems exists but the real catch is that also option is there where you can run that website in compatibility mode means in IE7, so that problems not there now.Especially some websites like Blogger,Gmail,Twitter like Ajax website once load run in a very satisfied and unified manner by looking at the speed as well as security.
However if you want to block the installation of IE8 then Microsoft also released one toolkit and by running that toolkit you can block automatic installations of IE 8.
As ghacks suggests :
"The majority of users will most likely perform the install of Internet Explorer 8 which is beneficial not only for them and the security of their computer system but also for web developers who usually dislike the older Internet Explorer editions."
Download IE8 Blocker Toolkit