- Update to version 8.19.2.
* Fixed a regression from Coq 8.18 in the presence of a defined
field in a primitive `Record`.
* Fixed an issue where the printer was sometimes failing to use a
prefix or infix custom notation whose right-hand side refers to
a different custom entry.
* Fixed `abstract` failure in the presence of admitted goals in
the surrounding proof.
* Fixed issues when using Ltac2 in VsCoq due to incorrect state
handling of Ltac2 notations.
* Fixed `Include` on a module containing a record declared with
`Primitive Projections`.
* Fixed an issue in `Fixpoint` with no arguments.
* Position error/warning tooltips correctly when multibyte UTF-8
characters are present.