Currently, we use the msys2 toolchain to build Julia for Windows. Unfortunately, msys2 has stopped supporting 32-bit Windows, and they are in the process of removing all of their 32-bit Windows packages. This means that in the future, we will no longer be able to use msys2 to build Julia for 32-bit Windows.
Therefore, we are planning to stop distributing official Julia release binaries for 32-bit Windows in the future. Specifically, we anticipate that Julia 1.13 will be the last minor release of Julia that has official Julia release binaries for 32-bit Windows. Users of 32-bit Windows might still be able to build Julia from source, but we can’t guarantee that such builds will continue to work.
64-bit Windows (x86_64) will continue to be supported.