Releasing a new version of hakyll

1. Update the version in hakyll.cabal and update the CHANGELOG.md file to describe changes associated with this version;

2. Commit changes to hakyll.cabal and CHANGELOG.md;

3. Tag the commit and push to GitHub:

   $ git tag -a "vW.X.Y.Z" && git push origin "vW.X.Y.Z"
   

4. Create a source distribution:

   $ cabal sdist
   Wrote tarball sdist to
   (...)/dist-newstyle/sdist/hakyll-W.X.Y.Z.tar.gz
   

5. Upload to Hackage:

   $ cabal upload --publish (...)/dist-newstyle/sdist/hakyll-W.X.Y.Z.tar.gz
   

That's it!