(see also [wiki:PatchReviewProcess How To Review Patches])

Please create a new ticket to track the issue unless your patch is a patch for an issue that is already ticketed.

Then run the following darcs commands to generate a darcs patch file named {{{WHAT.darcs.patch}}}:

{{{
  darcs record
  darcs send -o WHAT.darcs.patch
}}}

Please write a descriptive patch name and description like these ones: [changeset:8ba536319689ec8e], [changeset:1de4d2c594ee64c8], [changeset:d0706d27ea2624b5], [changeset:63b28d707b12202f], [changeset:c18b934c6a8442f8], [changeset:7cadb49b88c03209], [changeset:be6139dad72cdf49].

And attach it to the ticket.

Please use a filename like {{{*.darcs.patch}}} so that Trac will display it with proper syntax highlighting.

Or without darcs you can attach a normal old unified diff. If you do that, please use a filename like {{{*.patch}}} so that Trac will display it with syntax highlighting. (If using darcs, you can generate a unified diff with {{{darcs whatsnew --unified}}}.)