Will Royalmail shipping automatically update for 2013 prices

As the title, we're using 1.5.3.1. Will the Royalmail shipping module/rates automatically update?

2013 rates here with new Parcels rates.

http://www.royalmail.com/sites/default/ ... il2013.pdf

no they wont, you can change your prices from your admin/extensions/shipping
choose your shipping eg recorded delivery / special delivery and then update to your new prices
regards

Trouble is there's new Parcel options. For instance anything over 45cm x 35cm x 8cm is now classed as a small parcel.

I'm not familiar with how they update their rates, but you could possibly use my Hidden Shipping Adjustments extension to add a cost or percentage to the built-in rates so you don't have to change them.

Otherwise, If you don't mind recreating the weight / volume settings, you could use Formula-Based Shipping.