I recently changed my permalink structure on Wordpress to remove the year and month from the URL.
Old structure - http://www.thecheckeredflag.co.uk/2012/10/mtech-lite-retain-barc-regulars-for-winter-series/
New structure - http://www.thecheckeredflag.co.uk/mtech-lite-retain-barc-regulars-for-winter-series/
I have a canonical that has the new structure in the URL but google Webmaster tool is flagging up duplicate meta descriptions and title tags.
Currently it is telling me that I have 9000+ duplicates but obviously the pages are the same thing and there is only one instance of this.
Should I worry about this or is this something that will naturally correct itself over time?