Loss of specific variant designations from new site

One of the things that seems to have been lost in the transition to this new site is many times the information on the variant or version of the particular aircraft that was on the original Wingspalette site was lost or not transferred, ie. German aircraft such as the Bf-109 had complex “umrustungs” designations such as Bf-109E-3, data which seems to be missing in many of the profiles and titles now, can this be recreated, or is it lost?