Horizen has stated on the X platform that the mainnet node software upgrade ZEN 5.0.0 is available for download, and that ZEN 5.0.0 will execute the network upgrade via a hard fork at block 1502800 at approximately 12:00 p.m. UTC on 7 February 2024, and that users will not be able to execute any trades involving the shielded address following the hard fork, and that users are advised to remove funds from the shielded pool before then.