[Quickfixj-users] How do the FIX 5.0 Service Packs work?

[Andrew M. <an...@nm...>]

Are service packs cumulative?  Do I need to build 5.0 and 5.0SP1 to use 
5.0SP2?  

I see that changes to the file FIX50SP2.modified.xml can cause errors like 
this in fix50sp1:

[ERROR] 
/C:/java/qf/quickfixj-core/target/generated-sources/quickfix/fix50sp1/component/QuotSetGrp.java:[741,39] 
cannot find symbol
  symbol:   class UnderlyingUnitOfMeasure
  location: package quickfix.field

I only plan to use fix50sp2.  Can I skip building fix50sp1?

Thanks