On 12 Aug 2022, at 07:25, Yanni Chiu <yannix7db@gmail.com> wrote:

Sounds good. Using Fuel to serialize/deserialize should be fine, but I had unhappy experience with early versions where a newer Fuel version could not read content written by earlier Fuel versions.

I agree with you. It ws an important requirements that got dropped. 
And then after we never got to time to revisit it and I always felt ashamed because migrating data is super important to me.