Hello @NirKirshbloom,
Before version 1.0.0, we were using umbrella R-based versioning. After version 1.0.0, we started to use a single version to refer to set of apps and every individual app. The versions which you use belongs to R28.
We don’t have migration guides until R32 under one place but you can find them in their respective blog post.
R29 blog post
R30 blog post
R31 blog post
Migration guides for R32 and afterward can be found here.
Please let us know if you have further questions.
Regards.