New wallet just released:
https://github.com/numuscrypto/numuscore_physcomitrella/releases/tag/1.5.0.0

Also there is nvidia miner for new algo:
https://github.com/numuscrypto/numuscore_physcomitrella/releases/download/1.5.0.0/dedalminer.zip
use -a dedal switcher to mine.
You can start mine on the: https://umine.org/ (thanks them for supporting us during update)

Most recommended upgrade procedure:
1)   Save (make a backup) and move your data folder and especially wallet.dat file.
2)   Delete all data from Numus data folder.
3)   Copy back wallet.dat to Numus data folder.
4)   Download updated wallet software.
5)   Resync your wallet (don’t worry it much faster now).
6)   After sync will be finished run Tools -> Wallet Repair -> Recover Transaction 1
7)   Wait for rescan of blockchain
   Done

Please report any problems that you have with updated wallet/network.