specifically it provides the archaic greek letters defined in the
teubner package. WARNING: This package requires the greek language
bable package, which on some linux systems is installed separately
from LaTeX. As a result, texvc doesn't try to load this package
unless one of the archaic greek letters is being used. This ensures
that the new commands do not prevent any of the old functionality from
operating as it did before.
The following new commands are recognized. includes \Coppa, \coppa,
\varcoppa (synonym for \coppa), \Digamma, \Koppa (synonym for \Coppa),
\koppa, \Sampi, \sampi, \Stigma, \stigma, and \varstigma.
For more information see the comprehensive symbols table 280. Note
that this update doesn't effect the current functionality of \digamma.