[wp-hackers] Canonical integration into core

[Mike Schinkel]

"Lynne Pope" <lynne.pope at gmail.com> wrote:
> and for sites that have been around a long time or which 
> have been imported into WP from another app, the canonical 
> URL can indeed be different to the permalink WP generates.

Hence why it would be very useful to have this supported in core.

-Mike Schinkel
http://mikeschinkel.com/