The latest version of a blockchain node for the Opera network is go-opera 1.1.3-rc.5. The oldest supported version is go-opera 1.1.2-rc.5.
The upgrade is recommended for all nodes including API nodes and validator nodes.
Read node can use go-opera v1.1.3-rc.5 in either snap sync or full sync mode.
API node can use go-opera v1.1.3-rc.5 in either snap sync or full sync mode.
In a case if full history is needed, then use the latest archive genesis file in full sync mode.
Validator node is recommended to use go-opera v1.1.3-rc.5 in full sync mode.