I couldn't see this within the VMWare Open Source Disclosure listings at: https://my.vmware.com/en/group/vmware/info?slug=datacenter_cloud_infrastructure/vmware_vsphere/6_7#open_source
There's only open_source_license_VMware_ESXi_6.7.0GA.txt, without the normal Toolchain and Source ZIPs.
Just wondering whether release of this is due soon?