Parse error for `unchecked` blocks

[lukehutch]

Using the SolHint plugin for Remix, I get Error: Parse error: missing ';' at '{' with the following code, at the line marked // (*):

        unchecked {   // (*)
            _balances[sender] = balance - amount;
        }

I assume this means SolHint does not yet support the syntax of Solidity 0.8.0+?