The new update brings some new features - a new text editor, among other things. I like the auto-save!

This upgrade also fixed the XSS exploit that some members reported. It was a pain to make this work - I had rush to my office in the middle of moving to fix this. Not everyone was happy about that.

And this:

Bug Fixes/Improvements
Editor related items fixed
CMS HTML Editor Buggy as Hell
WYSIWYG Editing not available for Opera browser users
Switch to Editor Mode Causes Article Text to Disappear
Retrieve remote image fails.
insert table not working
Cookieless browsing issue for Apply in CMS editor
insert table not working
IE6 RTL: Tags field in text editor is in LTR mode.
Carriage Returns being added/removed on article save
Firefox: Buggy Paste of Forum-Links
Standard Editor does not support Add an Image from URL
Firefox: Buggy Paste of #3-Links
Add the same table code that is in CMS to forum.
Insert All missing from Attachments Paper Clip Drop Down (Regression from vB3)
Thumbnail and Image Editing/Resizing
Font Drop Down Box not showing its font in the font type
Tab Key Function with tables
Pasted Articles Not Formatted Correctly in CMS
Can't edit image properties of thin images using the WYSIWYG editor
Users Cannot Use "Insert Table" Button In The CMS Editor If "Forum Active" Is Set To "No"
Center text new thread
General Issues rectified
What's New not available in Mobile Application
Malformed Query Causes Loop Through Every User
Anyone can change the thumbnail size of any attachment
Slow Query In forumdisplay.php
Too Much Memory Used To Generate online.php
XMLsitemap does not generate correct URLs for blog and article content when using domain/blogs and domain/content
Handling "Canceled Reversal" Transaction
Can't drag uploaded attachments (IE9)
Change API newtop to get threads, articles and blogs that have been posted [to] last.
After approving moderated album pictures, "recently updated albums" and album display on user profile are not updated
Old YUI version failing vBulletin in numerous places on IE9
Lastpost Data is incorrect for threads.
Typo in Skimlinks package
Today's Posts - give it back to us
Multi-quote sticking around for next reply with quote
Measures to stop the loss of QR, QE content/changes loss
StyleVars Are Not Properly Mapped into User Profile Customization Colors, Resulting in Unreadable Areas
Query to determine first post in thread can take 60 seconds and is unnecessary
Some characters double html encoded when using quick reply and iconv not present
header_background changes font colors
NONOTICES for ajax.php
[Blog] Date to Publish
Group Quick Reply doesn't show error messages
Pencil icon appears below or next to attached image
[Maximum Custom Page Characters] ignored
Posting a reply to a blog entry in cookieless mode logs the user out
Parse links in text fails on links with trailing )
Deleting a CMS grid doesn't delete the associated grid template
IE6: Can't add tags in CMS article editor
Unnecessary HTTP Request on every page if YUI is loaded from Yahoo
Style Generator: default setting behaves quite differently in 4.0.8 than 4.0.7
BBCode [quote] not handled correctly if username contains special characters
Stylevar "vbcms_article_mid_fontSize" is missing
Code Review includes/class_api.php
Hook template_register_var not working correctly
Error in error handler for message too long: 'null' is null or not an object
Blog admin changes needed for Impex blog to blog importer
Missing '=' in a JS file
Reply With Quote has cursor starting at wrong location
New Youtube Share Links Not Parsing Via BB Code