Upgrade Standalone ESXi 7.0 to 7.0b

 Check ESXi version:

Check on https://my.vmware.com/group/vmware/patch if there are new patches

There is a new patch (7.0b), download it

After download upload file to ESXi host

Create a SSH connection to ESXi Host

Put in maintenance mode

esxcli system maintenanceMode set --enable true

Update Host 

esxcli software vib update -d /vmfs/volumes/5ed278ae-6001ab57-ac5b-1c697a61ab69/ISO/VMware-ESXi-7.0b-16324942-depot.zip

and finally

After reboot the version is:

exit to maintenance mode....

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or update from internet

esxcli software profile update -p ESXi-7.0b-16324942-standard -d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml