Image by Annie Mole via Flickr

It is not tough for installation. Just do the upgrade as usual.

Templates do not clone properly with the new Cloner

A change associated with the Summary Object Framework caused cloning via the BlogCloner to not function properly. It should work properly now.

Clicking navigation link for comment pagination fails with javascript error in Firefox and Safari browsers

DBIRaiseError is now set to 0 by default in order to hide warnings from the MS-SQL database driver that didn't affect output but did raise an error.

Attempt to Insert an Image Mislabeled as a BMP Results in an "Internal Server Error"

Fixed the approach for renaming the file to avoid internal server errors.

[Patch] Unable to extend MT::Asset

Added the ability to extend MT::Asset via config.yaml in a plugin. (Thanks Byrne!)

[MT 4.3 beta] Uploaded *.jpeg files become *.jpg in entry and *.jpeg on server.

Fixed a bug where .jpeg files were being renamed to .jpg in the entry but not on the server.

Add comment navigation to the top of the comment block as well

Comment navigation now appears at the top and bottom of the block of comments.

When the asset uploader needs to change an image extension, there should be a notification

If the encoding of an image doesn't match the extension and MT changes it, the user is now notified.

Asset manager should be shown by defualt in edit entry screen of new blogs

Asset Manager now appears by default when you create a new blog.

Asset association broken by single-quote in filename

Fixed a bug where assets with a single quote in the file name would cause a Javascript error when inserted via the entry asset manager.

"Assets" is not in the list of "Default Editor Fields" on Entry Settings or in "Display Options"

You can now hide the entry asset manager via the Display options on the entry edit page.