Backward compatibility for NETCONF 1.0 version

[hsynercn]

Can I use the NETCONF 1.0 with v2.2.0, as I understand the current version is locked for NETCONF 1.1.

netconf-java/src/main/java/net/juniper/netconf/element/Hello.java

Line 183 in 8271420

final String BASE_11 = "urn:ietf:params:netconf:base:1.1";