Hi ! It's always useful to make sure all data is synch'ed before using Bitcoin Core. Currently, the only way I know to get last update tip is to tail debug.log. It's not very efficient, nor coherent, to do it that way... I propose that bitcoin-cli -getinfo would report last update tip. Regards,
Realised it was already present, called "verificationprogress". Please reopen if I'm wrong.