Unfortunately 5.2 does not have a tool available. You can test v5.1 but make a backup of the files:
Probably they will release a better tool but does not have any ETA:
I hope they will release soon the newer decryptor about GANDCRAB v5.2
Unfortunately no news of new tool so we are not aware how long it would take to release such.
There is not a new decryption tool version yet.