This blog is updated daily.
A general description is here.
The parser now signals _classed_ errors, notably in case of the pipe op, ‘|>’. The error object and message now give line and column numbers, mostly as proposed and provided by Duncan Murdoch in PR#18328.
Accent keys now work in GraphApp Unicode windows, which are used by Rgui whenever running in a multibyte locale (so also in UTF-8, hence fixing a regression in R 4.2.0 for users of systems where R 4.1 used a single-byte locale).
Completion in Rgui on Windows now works also with non-ASCII characters.