Maven module versioning - best practice

Question

If I have a multi-module project, let's simplify it to:

my project
• module a
• module b

where module b depends on module a.

If I make changes in module b, and update its version, should I also increase the version of module a, even if this module has not been changed?

Thank you, Roxana

Answer 1

A short answer: it depends.

If your modules are just inalienable parts of a big complex project then it makes sense to have the same version in every project.

On the contrary, if your modules are low coupled (for example A is web service and B is Android client for A) then you may have different versions in each.