auto branch propagation

[Kesavan T.S]

Greetings,
We have a project which has several releases in a year and people working in 
parallel. We want to setup branches like REL1, REL2 , REL3  . When REL1 
branch goes into production  is there any feature by which and bug fixes 
made for eg: ConnectionPool.java to automatically propagate to REL2 and 
REL3. If there is any conflict auto  merging REL1 and REL2 or REL2 to REL3  
it should send an email notification to the user to alert that this needs to 
be manually merged. Also we are thinking of migrating from SCCS to CVS I 
would appreciate if any body has done this successfully and any pointers on 
things to plan for .

Thanks and Regards
kesavan