Differences with Smart and Web Client, compatibility wise:

• onRender is not longer possible, webcomponents are outside servoy control we cannot enforce behaviour onto them
• pre processed form level css is moved to solution level (and is no longer pre processed)
• webdav feature for WebClient is lost due to incompatibility with Tomcat 8 server used inside Servoy
• printing a form from scripting is not possible, browser printing needs to be used or jasper reports for reports
• client design is not present (yet)
• beans depending on technologies such as Java Swing or Apache Wicket will not function
• A much used plugin called webClientUtils from ServoyForge is not supported, since it depening on Apache Wicket