v3.1.9
Hotfix for MSVC
Removed addition of [[msvc::flatten]] from v3.1.8 as it could cause massive compilation times in some cases
by @stephenberry in #1235
Full Changelog: v3.1.8...v3.1.9
by @stephenberry in #1235
Full Changelog: v3.1.8...v3.1.9