Lesson 13: upgradeTo is deprecated .. again

[sunnyStefi]

Hei coders!

It's super awesome that openzeppelin is updating their contracts every few months 😮 ! But this gives us always the downgrading version problem, that's not really a solution, isn't it? 🙈 🙉 🙊 We already moved from version 4 to version 5 !

Since we are using just few libs, it would be awesome to have the course coded checked and updated (at least on github) whenever openzeppelin or others release a new version.

ref Openzeppelin docs

Major Releases

Major releases should be assumed incompatible. Nevertheless, the external interfaces of contracts will remain compatible if they are standardized, or if the maintainers judge that changing them would cause significant strain on the ecosystem.
An important aspect that major releases may break is "upgrade compatibility", in particular storage layout compatibility. It will never be safe for a live contract to upgrade from one major release to another.

This happened already with the ERC20Mock constructor, now with the upgradeTo in place of upgradeToAndCall inside UUPSUpgradeable.sol.

It looks like a recurrent problem. We, as community can help for sure with a push but maybe it would be more helpful just to have an actualised code on github?

[cromewar]

Amazing @sunnyStefi, can you send a PR to the Chronological updates?

[sunnyStefi]

Done!