Upgrade from webMethods Integration Server 10.5 to version 10.7 on the same system? (upgrade on place)

[Nagendra_Prasad]

Linking to similar question for 10.11 upgrade in place

Migrate Integration Server to 10.11

We are using Integration Server 10.5 and want to migrate to 10.11 mainly because of the new JVM. Installer shows me that it can only be made with side by side approach. The versions are so near that it is strange that cannot be done with overinstall. Will webMethods make this possible in the future ? The documentations says that there is a direct papth of migration between 10.5 an 10.11. What does this mean ?