Notable is
- KCoreDirLister: Do not list files again if the new url has same job. Commit. Fixes bug #507278. See bug #451050. See bug #507185
- Affecting in particular (s)ftp file browsing in dolphin. ( SFTP Root Directory - #12 by meven )
- PlasmaDesktopTheme performance: Avoid an unique connection. Commit.
- A small performance improvement for plasma and Kirigami applications