The customer had exit programs working with V241.

When he installed V263, he could not find following libraries:
-rwxr-xr-x    1 cft      cft          499867 Jun  9 13:30 libcft.a.232
-rwxr-xr-x    1 cft      cft           88812 Jun  9 16:14 libmodcrypt.a.232
-rwxr-xr-x    1 cft      cft           42725 Jun 10 11:45 libcftex3.a.232
-rwxr-xr-x    1 cft      cft          816390 Jun 10 12:00 libcrypt5.a.232
-rwxr-xr-x    1 cft      cft          169463 Jun 10 12:01 libscpscm.a.232
-rwxr-xr-x    1 cft      cft           36679 Jun 10 12:01 libscpbase.a.232

Now he asks for equivalent libraries.

These internal libraries depend on internal organization of CFT which could be changed from one release to another.
There is no sense to compare 2 diffirent releases.
The makefile used in V241 to build the exits could not be used on 263.
The customer has to re-compile their programs with the kit delivered on V263. The procedure is  described in the online documentation.