Hi ali,
Thanks for using Zoom SDK. You can find all previous SDK releases in our Github repo: https://github.com/zoom/zoom-sdk-android/releases. The one (v4.3.0.53571.01118) that you are looking for is here: https://github.com/zoom/zoom-sdk-android/releases/tag/v4.3.0.53571.0118.
We introduced the supports for x86 in that version, so all version since the version v4.3.0.53571.01118 have the support for x86.
We highly suggest using the latest version of our SDK, which you can find here: https://github.com/zoom/zoom-sdk-android/releases/tag/latest
Hope this helps. Thanks!