I don't understand

is this HARD FORK require the 3.0 wallet or can we cruise on with the current wallet

or has the HARD FORK happened?
If it's really a hard fork - you need a new wallet. I'm really surprised that you're surprised by this. What exactly did you expect? Get on slack or wherever-the-fuck they are now and beg for a wallet.
I would go on Discord and get more information but my Ionomy Discord User is BANNED!!!
Ionomy LTD Support is still chatting with me via email... excellent service as usual!!