IWURL.pas renamed to IW.Common.URL.pas, and IWHTTPApp.pas renamed to IW.HTTP.Utils.pas. If any of your units references these units (unlikely) your code needs to be adjusted.
HashTable initialization now verifies and adjust the size if needed
TSentinelThread exposes a new property MaxThreadWaitSeconds. This is a configurable maximum time that the sentinel thread will wait for the session timeout thread before considering it frozen. The default is 300 seconds (5 minutes). In previous versions a fixed value of 180 seconds (3 minutes) was used.
Bug fix
Changing BGColor of a IWEdit during an Async event wouldn’t work as expected when FocusColor is also used
Custom Favicon.ico would revert to the default IW icon after browser refresh