git: 9front

ref: 1cf26d72e2734aad1b39fae3a008b1360aec34e3
dir: /sys/src/cmd/python/Doc/whatsnew/

Makefile
whatsnew20.tex
whatsnew21.tex
whatsnew22.tex
whatsnew23.tex
whatsnew24.tex
whatsnew25.tex