[gmx-users] Force field definitions in 4.0 and 4.5

[ms]

Dear users,

I am currently using GROMACS 4.0.7 with a custom force field I developed 
(coarse-grained model I am developing). I want to jump to 4.5 , but I 
wonder if something in the syntax of force fields has changed from 4.0.x 
to 4.5 :just to know in advance if I have to change the files or if I 
can just copy-and-paste them :)

thanks!
Massimo