CKeditor is developing rapidly, however the implementation in XPages is staying behind.
This method is not active anymore:
try
https://openntf.org/XSnippets.nsf/snippet.xsp?id=a-alternative-way-to-include-the-newest-version-of-ckeditor-4
Pasting content from MS Word for example isn't working anymore like it supposed to do and loading large chunks of content from a Java bean into an inputRichText field is taking like forever.
I created an alternative way of implementing a new CKeditor.