Hey @techgeniuswang 
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Nice to see you upgrade from the alpha version 
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You are exactly right about it, you can follow the same concept as described in this guide, only then with beta.0 → beta.15. First jump to and test beta.15, from there on you should follow the rest of the guides.
I would recommend you quickly test between migration guides, so catch problem early handed rather then on the end. Also I would like to say that spinning up a fresh project and importing your (if it isn’t a complicated) model into the new project could be a easier/better solution.