Thanks a lot, Jason.
My weblinks still have type "reference" in the DB, and are correctly managed as weblinks by the manager.
It is the parser which doesn’t work properly. This is true for both pre-existing weblinks and for newly created ones.
If it can help, I upgraded from 0.9.0 directly to 0.9.2, and I’m using Italian as the manager language.
Just as a temporaty fix: can I revert my installation to 0.9.1 by uploading the 0.9.1 files?
Nope. I’ve tried to repeat the update process, to disable all the plugins, but the problem remains.
If you are interested and you have some time, I can PM you a manager account, so that you can make all the tests you want.
But don’t worry for me: I have a backup of my site just before the upgrade. I will revert to my working install (and DB) in a few hours, if the problem is not fixed.