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[cross-project-issues-dev] Equinox Bundle Version Concerns


Eike and I have been trying to address problems in Oomph related to the Mars Mac App layout changes and we're concerned that there appears to be a general problem with a lack of semantic version changes in bundles that have modified contents, in many cases not just very minor content changes but rather  major behavioral changes.  For example, it's clear that the p2 eclipse publisher is significantly changed by this commit:
In fact, this commit changed the MANIFEST.MF of the eclipse publisher itself:
I.e., it is changing the BREE but it does not change the version number of the MANIFEST.MF. 

The last time the semantic version of this MANIFEST.MF was changed was by this commit:
I.e., way back for Kepler.  The versioning guidelines are pretty clear that a content change requires at least a service increment:
I've not investigated more deeply, but my impression is that there is a general pattern of forgetting to increment bundle versions when the contents have changed.   Comparing Mars M6 (left) with Luna SR2 (right) I see very few things have been incremented, but surely there have been many changes.

Note the red outlined case where the Mars version actually has a smaller version number, 3.9.0, than the Luna version on the right, 3.9.1.  That's very wrong.

I hesitate to point out that Oomph has a version management tool for detecting when version changes don't match up with content changes.  I know other teams regularly increment all versions at the start of a release, which granted is not ideal.  But failing that, it's a difficult problematic to manage manually such changes and it's clear that it's not being handled very well because this isn't the first time during the release cycle that this issue has come up for the platform...

In case you're wondering, we're particularly concerned about this because in Oomph we'll need to detect whether we're installing a product with a newer or older version of the bundles that support the new versus the old layout.  We're not even sure which representative bundle's version test though it seems clear we must not be relying just on a build qualifier change to test for content/behavior changes.  For us it would be ideal if these things were properly incremented for the final M6 repository contents...


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