IGA version is 1.1.0 constant for two years.
There are multiple differences in code generated by different compiler versions, but all reporting version "Intel Graphics Assembler 1.1.0-int". It is impossible to differentiate them without checking debian package version. Could you add suffix to the version with similar string as in debian version, sth like "1.0.26727.17545-main+releaseinternal1"?