After re-thinking the idea with the build number, I guess it is better 
to have SqueakMap just checking if versionNumber conforms to some 
standard format as in n.xy ( e.g. 1.01 ). 

This way the author can decide to indicate that the package is 
immature ( e.g. 0.01 ) and it is possible to differentiate for us 
humans between major versions and it is easier to describe a special 
prerequisite demand ( e.g. major version >= 1 but < 3 ). 

It is also possible to 'insert' a historic version later ( actual is
1.2, but I want to have for some reason 1.11 available ). 

Martin Wirblat <sql.mawi at t-link.de> wrote on 21.05.2003 11:29:43:
>Perhaps we can have something like packageName+buildNumber where 
>buildNumber is generated by SqueakMap and starts with and is 
>incremented by 1 to have even more KISS.