For the Allegra and Mary hard forks all the nodes (that includes the relay nodes) need to be on 1.24.2 or higher before the December 15th for testnet and before December 16th for mainnet.
For the Allegra and Mary hard forks all the nodes (that includes the relay nodes) need to be on 1.24.2 or higher before the December 15th for testnet and before December 16th for mainnet.