based_aa relies on sclip which is functionality only EEDI3 has, therefore EEDI3 has been forced (passing anything else would result in an error anyway).
resize_aa_mask has been removed as it produces worse output than a simple Bilinear resize, especially on fractional scale factors.
prefilter handling has been completely reworked. Previously the prefilter was simply applied unconditionally. Now the masking routine still uses the original clip, which limits the prefiltering to only areas processed by EEDI3.
NOTES: