New features

• macOS Tahoe 26.1 does not support rgl displays. Give
  a more informative failure warning.
• Support for classes defined in the tripack package
  has been dropped at the request of CRAN.
• Added the latex3d() function to draw LaTeX text using the
  xdvir package.
• Both plotmath3d() and latex3d() now use default
  cex = par3d("cex"), and have new argument polygon_offset.

Bug fixes

• arrow3d(type = "extrusion") was broken by the changes to triangulation in version 1.3.16.
• Changes last year to writePLY() introduced an error
  in some cases (issue #489).