Finally a (tentative) fix for the infamous "networkmanagement's kded module crashes when opening kwallet".
Plasma NM 0.9.0.2
299205: Fix hidden wireless network creation.
298895: Do not send empty service field to NetworkManager or it will not create DSL/PPPOE connections.
283105: Remove stale secret requests to prevent crashes.
295545: Fix sorting by "last used" column and make sortings case insensitive in the kcm.
The following languages have more than 80% of strings translated:
ca cs da de el es et fi hu it km lt nb nds nl pl pt pt_BR sk sv uk zh_TW
Also read some usefull information about Plasma NM in my past posts.