: It is available in both 32-bit (x86) and 64-bit (x64) versions.
The release often associated with "Sept 2018" is , which began rolling out in October 2018 based on version 1809. windows-10-enterprise-ltsb-32-64-bit-sep-2018
: Starting with this release, Microsoft rebranded "LTSB" to "LTSC". : It is available in both 32-bit (x86)