The MIGHTI temperature product (L2.3) has been updated to version 6 (v06) and is currently available for the full mission on the ICON FTP site and at SPDF. 

With this version update, the MIGHTI-A and MIGHTI-B temperature data are both more rigorously tested to ensure continuity across the solar terminator. Also, the top of the daytime MIGHTI-A temperature profiles is now 135 km, up from 127 km in previous versions. Links to the data products are provided here:

ICON FTP MIGHTI

CDAWeb MIGHTI-A

CDAWeb MIGHTI-B

Prior to using these data, please review the data product documentation here:

ICON FTP Temperature V06 Documentation