After upgrading my website from 2.5 to 3.0, :title in permalinks will be converted to lower case. All my website page links change slightly, for instance, from /2015/10/27/NewPost/ to /2015/10/27/newpost/. It's a minor change, but all the links I used in other websites are broken totally.

As all permalink style are using the lower case :title, there is no backwards compability or any flexibility. Can we have another permalink style to use the original title from file name?