In 4.3, we did changes to several components which weren't updated appropriately using AJAX: basically their JavaScript was called too early. RF-12031 RF-12229 RF-12513 RF-12542

The solution was using deferred invocation using JavaScriptService (which is bound to ExtendedPartialViewContext and extended partial response mechanism).

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However this solution causes problems in applications which use non-RichFaces AJAX (e.g. f:ajax) or components. RF-12760

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The question is if we could create Migration Notes which would allow people overcome these problems when switching from 4.2 to 4.3

or we should rather fix the issue for f:ajax and other non-RF components: RF-12536