Skins and plugins from v2 & v3 are compatible with v4 and should run without problems.
Category: "4.x Series"
* Fixed tinyurls (@evofactory) Allow closing of antispam popup by pressing Escape (@evofactory) Enhanced slug manager (@fplanque)
* Better dashboard AJAX handling (@evofactory) Paged comments (AJAX) in the backoffice (@evofactory) Cleaner navigation for crossposted posts. You now stay in the same blog and teh page includes a "canonical tag". If you prefered the ol…
* Skins: Separate search page – disp=search – destined to gather advanced search params (@francoisplanque) Post index feature – disp=postidx (@francoisplanque) Site map feature (HTML, not XML which already existed) …