Releases with Windows binaries only (it seems) are 2.06, 2.09 and 2.11.
2.14 contains both the source and binaries.
You need to download 2.14 binaries in order to run 2.14-mod MSW binaries.
2.14—2.20 are all 32-bit and use SDL 1.2.15 MinGW binaries
(http://libsdl.org/release/SDL-devel-1.2.15-mingw32.tar.gz) and wx 3.0.2.
2.21 (both 32- and 64-bit) and later are statically linked with SDL 2.0.5
and wx 3.1.0.