Reminder:
Mandatory Update !!
All wallets, Pools, Miners, Masternodes,.... please update to 13 !

Wallets:
update as usual

Masternodes:
get new DMT
https://github.com/Bertrand256/dash-masternode-tool/releases/tag/v0.9.21
then update with version 70213 (edit on DMT)
then as usual