No specific info about version 0.3 beta. Please visit the main page of Sims Package Editor on Software Informer.
This is a free tool for creating and editing DKLang packages.
Can store all the editing programs for The Sims and The Sims 2 in one launcher.
Create a collection and choose a name and icon for it.
Sims Explorer will assist you in editing your custom content for The Sims 2.
DOKSoft Properties Editor is a tool for Java products localization.
The Sims Edit (TSE), Is an editor for The Sims by Maxis.