rkyv version question

[nekonimous]

Hey,

I noticed that Piecrust and Rusk seem to have different version constraints for rkyv:

Rusk: https://github.com/dusk-network/rusk/blob/d1bcaa2fb282c56748baeb3ef5dd9d5e3086ca4e/Cargo.toml#L120

Piecrust: https://github.com/dusk-network/piecrust/blob/2a8e0b4faa7017029295e08f2660ffa90cdbe146/piecrust/Cargo.toml#L21 (while 0.7.43 is the latest release of 0.7 series)

Out of curiosity, but would it make sense to use the same version across repos here or does it not matter at all?

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Additionally, I also noticed that rkyv recently released a new major version 0.8 that breaks backward compatibility.

Could this lead to any potential issues later down the line if you planned to upgrade with existing data?