The FAQ should help clarify any questions you have: Licensing and Subscription FAQ
Does it still stand that the OSS version - that is built with
-tags oss - will be usable under the Apache 2.0 license without any build number limitation?
Yes. Usage limits are only enforced by the Enterprise Edition.
Could you clarify what Community / Dev / Freemium editions mean?
I would not focus too heavily on names because names change. We could in theory create multiple named versions of the Enterprise Edition with varying levels of support (Premium, Pro, Starter, etc). So instead of thinking in terms of product names, I would encourage thinking about the software in terms of build permutations:
- Drone Enterprise Edition, official distribution, with annual build limits
- Drone Enterprise Edition, official distribution, no annual build limits, license file provided
- Drone Enterprise Edition, built from source, no annual build limits, using nolimit build tag
- Drone Open Source Edition, built from source, using the oss build tag
Please note that everything described above can be verified by looking at the source code and the LICENSE file. The source code and the LICENSE file should be considered the source of truth for how you can use the software.