Change Two-factor authentication (TFA) flood control is now account-based, instead of IP address-based.
Fix In certain circumstances, single sign-on using SimpleSAML on Drupal 8 websites failed if Site Factory could not find the website registry file.
Fix Themes hosted in external theme repositories failed to display when external theme changes were processed while the Site Factory Management Console disk was nearly full.
Site Factory 2.86 - March 6, 2019 | Acquia Product Documentation
Site Factory