When I use contract factory to create an upgradeable contract, I found that @openzeppelin/upgrades: 2.8.0 still uses the 0.5.0 version of solc.
I want to know when @openzeppelin/upgrades supports 0.6.0. Thank you!
Please accept my apologies, I had completely missed replying to your post.
Welcome to the community
There is an open issue for this https://github.com/OpenZeppelin/openzeppelin-sdk/issues/1463 with plans to move proxy contracts to OpenZeppelin Contracts.