With processing version V01.06.01 and higher, the spectral calibration of EnMAP has been updated for the period since February 2023. The band center wavelengths are slightly shifted to better match the on-board calibration sources and the wavelength positions of atmospheric absorption features. This shift is very subtle: approximately +0.2 nm in SWIR (where the FWHM bandwidth is ~10 nm) and less than 0.05 nm in VNIR. Nevertheless, it has a small impact on the atmospheric correction over land and water, so products are very similar but not identical.
More details on the spectral calibration update and the related implications for L1C and L2A products can be found in Chapter 5.17 of the FAQ at https://www.enmap.org/data/doc/EnMAP_FAQ.pdf.
The regular assessment of the spectral properties of EnMAP over time is documented in the Mission Quarterly Reports in Ch. 7.5.2 and Ch. 7.6.2 at https://www.enmap.org/mission/.
The processor changelog is available at https://www.enmap.org/data/doc/EnMAP_processor_changelog.pdf.