We have many projects that need to use common version numbers.
What is best practice for doing this with Ant/Ivy?  Do you just inherit a wad of properties from Ant that have the version numbers in them, or is there a more formal mechanism a la Maven?
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        Ed Staub
        
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                    Looks like the new
in ivy.xml gets at some of this. See [Jira](https://issues.apache.org/jira/browse/IVY-742), [doc](http://ant.apache.org/ivy/history/latest-milestone/ivyfile/extends.html). Not sure on best use yet, though. – Ed Staub Aug 11 '11 at 02:39 
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        As you've pointed out I think this is the problem which the new extends functionality has been designed to solve.
To be completely honest I'm not a fan of parent-child modules in Maven.... However, just like you sometimes I want to nail lots of my modules to a common version of Spring.
The solution I used was to have a set of properties defined in my shared ivysettings file. This keeps my ivy specific properties separate from my ANT build properties.
        Mark O'Connor
        
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