According to Odaily, BNB Chain has announced that the opBNB mainnet will undergo a Haber hard fork upgrade on June 20 at 16:00. This upgrade will introduce a secp256r1 curve pre-compilation. It is necessary for opBNB nodes to update to version v0.4.2 before the hard fork. The upgrade is expected to enhance the performance and security of the network, although specific details about the improvements have not been disclosed. The announcement did not mention any potential risks or disruptions that might occur during the upgrade. Users and developers are advised to monitor the situation closely and prepare for the upgrade in advance to ensure a smooth transition.