From our developers' experience, Richfaces 4.2.X has lots of minor glitches that make the component behave wierd. Some make them have no choice but switch to PrimeFaces components.
Can you be specific about what issues you faced? We have fixed a significant number of bugs with the 4.2.X releases, and continue to do so in our current 4.3 stretch. Are their any significant show-stoppers you would like to call out? We'll do our best to see the issues get addressed - and keep in mind pull requests are always welcome ;)
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