This collection of tools includes: support for short commands
starting with @, macros to sanitise the OT1 encoding of the
cmtt fonts; a 'do after' command; improved footnote
support; mathenv for various alignment in maths; list
handling; mdwmath which adds some minor changes to LaTeX
maths; a rewrite of LaTeX's tabular and array environments;
verbatim handling; and syntax diagrams.

Homepage:
https://www.tug.org/texlive/
