Zcash rolls out update patching four major vulnerabilities

@zodl_co said a combined release of zcashd v6.12.1 and the Zcash Foundation's Zebra v4.3.1 has addressed four vulnerabilities. The issues included an Orchard action-encoding bug that could crash nodes and a related consensus-split risk between the two clients. The fixes have already been deployed, and there are no indications the bugs were exploited. The team added that user funds and privacy were not at risk and the flaws could not have enabled any ZEC supply inflation.