Prior to the IFS cycle 47r1, the EFI for both CAPE and CAPE-shear has used instantaneous CAPE (ShortName=cape; parameter ID=59) and CAPE-shear (ShortName=capes; parameter ID=228044) in 6-hour steps from which 24-hour maximum values have been computed. For example for T+24-48h EFI forecast, four CAPE values at T+30h, T+36h, T+42h and T+48h have been used to compute the maximum for this forecast period. With the IFS cycle 45r1 two new model output parameters, maximum CAPE in the last 6 hours (ShortName=mxcape6; parameter ID=228035) and maximum CAPE-shear in the last 6 hours (ShortName=mxcapes6; parameter ID=228036), have been introduced (see details here). In the IFS cycle 47r1 mxcape6 and mxcapes6 are replacing cape and capes respectively. This change is aiming for a better sampling in the computation of 24-hour maximum values necessary for the EFI. The impacts of this change are described in detail below.