I recently upgraded from Wicket 7.x to 8.1.0 and wondered what happens to some of the ClientProperties methods, that are now marked @Deprecated without a hint why or what will become of them.
The migration guide doesn't mention them either.
I found this commit introducing the changes, but couldn't trace it back to a Jira story (WICKET-6544 is about buggy user agent detection, i don't see the link here).
So what will become of this feature, will it be removed without replacement?
Thanks for your question: User agent detection was indeed deprecated in Wicket 8 and will be removed in Wicket 9.
I've updated the migration guides, users are encouraged to switch to specialized libraries like https://github.com/nielsbasjes/yauaa now.