How to deal with Deprecated Items

Hi all,
I’m new to Xojo and have to deal with an old desktop application.
There are a lot of warnings and deprecated items in the app.
Should I worry about removing those deprecated items quickly ?, is there a way to know if a deprecated item will stop being supported in the next xojo update ?
For example, regarding HTTPSocket deprecated from 2019r1, how long do I have to update the code to use URLConnection instead ?
Thank you

Most items, no.

It should say on the release notes.

Security and web items are the first that should be considered to update.

If you are working on Desktop applications, you should also find that the new DesktopXYZ controls will have updates/fixes and the older controls will not (from what I read).

Thanks for your answer