[GAP Forum] The stability of group libraries

[Leonard Soicher]

Dear GAP Developers, Dear GAP-Forum,

I would like to know what the policy is concerning the groups
in the the very useful GAP libraries of transitive permutation groups and 
of primitive permutation groups (and any other group library you wish to comment on) 
as regards to any possible changes wihen changes are made in GAP. In particular, 
were the actual groups in the library, their GeneratorsOfGroup, and their indexing 
within the library fixed in perpetuity when the library was initially made available in GAP4,
and if not, what is the mechanism to alert users to any changes? This is important
for being able to repeat, check, report on, and extend results made using specific 
groups in a given  library. 

Thank you for your help,
Leonard