CMS Tried update to 4.03 from 4.02PL4. Why the need to revert templates?

[محروم.كوم]

I upgraded a backup copy. Full publishing suite. Everything seems fine without template reverting. Yet in the description on vb.org I see that the following templates need to be reverted:

• calendar_edit_recurrence
• FORUMDISPLAY
• FORUMHOME
• header
• headinclude
• modifypassword
• navbar
• Postbit.css
• register
• replacement-vbulletin-ie.css
• USERCP_SHELL
• vbcms_widget_recentthreads_config
• vbulletin.css
• vbulletin-chrome.css

Navbar, postbit, header... all seem fine without reverting. I really don't know how to proceed...

In the control panel I see 11 templates with the following text: Changes were automatically merged into this template.

At the top I see this text:
The templates shown on this page have been updated in the default template set since you customized them.

It may be necessary for you to revert the custom templates, or otherwise check that they fully support vBulletin 4.0.3. If you do not do this, some sections of vBulletin may not function! Please see the release announcements at the vBulletin.com Forums for more information. __DEFINE_LIKE_SHARE__