CommonLibSSE-NG’s README says the Skyrim modding library has made a breaking license change from MIT to GPL-3.0-or-later with modding and linking exceptions, and that plugins statically linking the library must use GPL-compatible terms.
CommonLibSSE-NG Switches From MIT to GPL-3.0-or-later With Modding Exceptions
CommonLibSSE-NG's README says the Skyrim modding library has made a breaking license change from MIT to GPL-3.0-or-later with modding and linking exceptions, and that plugins statically linking the library must use GPL-compatible terms.
Source: Github