Changes

Note that the legacy command <texcode>\sc</texcode> should be considered deprecatedused <em>only</em> for those few typefaces where the small caps belong to a font file distinct from the main font. Latin Modern is an example.  For most (if not all) contemporary opentype fonts, the small caps (and the associated feature smcp) are included in the main font file; it so \sc should no longer be usedin most instances.