Those guy at have been busy behind the scene....
vBulletin 3.6.1 is out :Little:

From announcement:

Quote Originally Posted by
vBulletin 3.6.1

vBulletin 3.6.1 is primary a bug fix release, superseding 3.6.0. Over 100 bugs have been fixed since the release of 3.6.0. Additionally, some small features were added to 3.6.1 in response to customer feedback. These changes are discussed below.

If you are not aware of the improvements of 3.6 over 3.5, there is a thread available here that discusses all of the changes.

Changes of Note Since vBulletin 3.6.0
  • Admin CP News System - additional information beyond the latest version can now be delivered to you when you visit your admin control panel. We will be using this system to make you aware of product updates and other important company information. Once you have read a piece of news, you can "dismiss" it so it won't appear again.
  • Infraction System: Infraction Extension - when the same type of infraction is received twice, the second offense can now be tacked on to the first one, extending the length it's valid for. For example, a user is given an infraction for spamming posts that expires in 1 day. An hour later this user is given another spamming posts infraction. Since the user already had an active spamming posts infraction, this new infraction's expiration time is added to the end time of the previous infraction. Effectively, this new infraction will now end 1 day and 23 hours later instead of the default of 1 day.
  • Infraction System: Automatic Bans - users can now be moved to banned usergroups. A stepped system can be implemented such that increasing number of points or infractions results in lengthening ban perioids.
  • RSS Import Improvement - the RSS import system now handles several common but invalid RSS formats. Compatibility with character sets is also improved.
  • CAPTCHA for Guest Searches - you may now optionally force guests to prove they are human before searching
  • HttpOnly Cookies to Prevent XSS Attacks - certain cookies will no longer be available to JavaScript, which prevents many XSS attacks from stealing data. PHP has also accepted our patch to add this feature to PHP 5.2.0.
  • Podcast Improvements - several podcast options can now be set per thread rather than just per forum
  • "Search This Thread" Improvements - additional options are now available for when using "Advanced Search" from "Search This Thread"
PHP and MySQL Requirements

Please note that vBulletin 3.6.x requires at least PHP 4.3.3 and MySQL 4.0.16 or later.

Installing or Upgrading vBulletin

Please see the appropriate manual sections: Installing vBulletin and Upgrading vBulletin.

Template Changes

Many templates have changed since previous versions of vBulletin (3.5.x and 3.6.0) in order to accommodate new features. As a result, you will need to revert several templates or some areas of your board will not function.

If you are currently running 3.6.0, you may see below for a list of template changes between 3.6.0 and 3.6.1.