For example, AIX3 and AIX4 will be treated the same. Although it may be eventually required to change this in specific cases, this allows us to start test build on AIX4 and HP-UX10. If they are using only release 1.2.0 and later as test releases, they should copy and use the new SRTstartup. This will then allow them to use later OS versions than OSF1 3.1, AIX 3.2 and HP-UX 9 when the support becomes available. Regretably, this means they cannot use the new architecture support, and they should stay on AIX 3.
Careful people can keep both SRTstartup.
Further more, one can type 'which newrel' to see if the PATH is set up properly. If the PATH is not set up properly, one can use SRTpath.csh to set it up. One can also use '-a arch' option to run binaries from one architecture while developing codes for another architecture.