deprecated caommand in 1.11.1.1

[Stanton, Curt (NCI/IMS)]

        I am trying to switch from RCS to CVS.  I recenly tried using cvs
1.11.1.1.  For my company, we wanted to simulate the locking style of RCS of
only having one person edit the file at a time.  I understand that CVS
doesn't directly support that and I understand why, but it had the command
admin -l to lock a file and we were just going by the protocol if you lock
it you can edit it it if not don't.  and only unlock a file if you are the
one who locked it.  That feature has been deprecated in the latest release.
Is there something else like that or should I use a previous version to have
that feature?

        Thanks in advance
        Curt Stanton