ZcashFoundation/zebra v4.5.3

Zebra 4.5.3

on GitHub

This hotfix release adds a soft fork that temporarily disables Orchard actions in
transactions, to mitigate a security issue. We recommend node operators update to
4.5.3 as soon as possible.

Security

• Add a soft fork that temporarily rejects transactions containing Orchard actions.
  It activates at a fixed height on Mainnet and at a configurable height on Testnet
  (temporary_orchard_disabling_soft_fork_height in the network config), and the
  mempool is revalidated at the activation height to drop any Orchard transactions
  accepted beforehand
  (GHSA-jfw5-j458-pfv6).