Check the Phoenix server version before allowing a capability to proceed.
Throws if the connected Phoenix server is older than the minimum version
required by the given capability. Also throws if the server version cannot
be determined — this typically means the server is too old to report its
version at all and is therefore incompatible with this client.
Check the Phoenix server version before allowing a capability to proceed.
Throws if the connected Phoenix server is older than the minimum version required by the given capability. Also throws if the server version cannot be determined — this typically means the server is too old to report its version at all and is therefore incompatible with this client.