- Updated to 64-bit build
- libxml2 compiled from sources
- gtksourceview-2 compiled from sources
- Removed required MSVC installation: cap'n proto is now built with MinGW toolchain
- Updated GitHub Actions runner images
- Updated OCaml to 4.14.0
- Updated other dependencies to recent versions
- Added dependencies to support ppx_parser in the future: a replacement for Camlp4