-
-LDAPv2 is considered historical. As deploying both LDAPv2 and
-LDAPv3 simultaneously can be quite problematic, LDAPv2 should
-be avoided.
+ - Extensibility (controls, extended operations, and more)
+
+LDAPv2 is historic ({{REF:RFC3494}}). As most implementations
+(including {{slapd}}(8)) of LDAPv2 do not conform to the LDAPv2
+technical specification, interoperatibility amongst implementations
+claiming LDAPv2 support will be limited. As LDAPv2 differs
+significantly from LDAPv3, deploying both LDAPv2 and LDAPv3
+simultaneously can be quite problematic. LDAPv2 should be avoided.
+LDAPv2 is disabled by default.