Version Compatibility

As of Junos OS Release 12.3, Junos applications will install on Junos only if the application is built with the same release as the Junos OS Release on which the application is being installed. For example, an application built with Release 12.3R2 will only install on Junos OS Release 12.3R2 and will not install on Junos OS Release 12.3R1 or Junos OS Release 12.3R3 or Junos OS Release 13.1R1.