We are going to address a number of technical issues that will require a major change. This version will not be binary compatible with the previous 2.x versions, but should be source compatible to a degree. We will strive to maintain a migration guide and be aware of what effects changes will have.

This issue is to raise concerns about changes that may be made for discussion. Issues and PRs for this will be flagged using the Milestone

CI builds for this will be pushed to a feed at: https://openxmlsdk.blob.core.windows.net/feed/index.json