Help: /vdiff
Bounty program for improvements to Tcl and certain Tcl packages.

The "/vdiff" page:

URL: /vdiff?from=TAG&to=TAG

Show the difference between two check-ins identified by the from= and to= query parameters.

Query parameters:

from=TAG
Left side of the comparison
to=TAG
Right side of the comparison
branch=TAG
Show all changes on a particular branch
diff=INTEGER
0: none, 1: unified, 2: side-by-side
glob=STRING
only diff files matching this glob
dc=N
show N lines of context around each diff
w=BOOLEAN
ignore whitespace when computing diffs
nohdr
omit the description at the top of the page
nc
omit branch coloration from the header graph
inv
"Invert". Exchange the roles of from= and to=

Show all differences between two check-ins.