Please see SPDX License Expressions - SPDX v3 Specification it clearly states lower case “and” “or” “with” is allowed. I am suddenly getting a bunch of my (KDE) snaps rejected do to invalid license expression. Looking here: snapd/spdx/parser.go at 060a4dc7f4ba1cf8c7f1398a0026c44fc8f48fdc · canonical/snapd · GitHub it shows you only allow uppercase. Please change it to allow lowercase as my attempt to convince my devs to change it was rejected and I really don’t want to carry patches for all these as it is valid. Thanks, Scarlett