Yes, you can support both in the same executable. We're fixing the header issues in the upcoming version.
Also, if you're including both in the same application use the dynamic versions of the libraries. There are currently conflicts (as of the time I'm writing this) if the static versions of both versions are included in the same app. This will be fixed in the future.
Future readers, see the changelog, download the latest version: https://wyday.com/limelm/api/