The package update below is now working its way through the CTAN mirror system.
Thank you, Jim Hefferon Saint Michael's College
......................................................................... I've uploaded an update for macros/latex/exptl/biblatex.
RELEASE NOTES
See the file `RELEASE' for release notes.
CHANGES
With about 225 entries, the changelog of this release is too long to be quoted here. Please refer to the full list at the end of biblatex.pdf and to the release notes.
ALSO NOTE
I've uploaded a README file intended for macros/latex/exptl/biblatex-contrib. The idea is to provide a staging area for contributed biblatex styles.