After your next repo-sync (or if you have already done a repo-sync since Jul 19) on pre-existing environments, you will need to update your build environment for the new debian_version and debian_snapshot_timestamp values. # 1. Update stx.conf from the new sample stx config --upgrade # 2. Download or Rebuild builder containers (picks up new snapshot URL) stx control stop # If download speeds are good, and you have no build system modifications in your work space ... ./stx-init-env # or if download speeds are poor, or build system modifications are present in your work space ... ./stx-init-env --rebuild # 3. Start and let the system recreate chroots on next build stx control start #4 Rebuild chroots downloader -b -s -B std,rt build-pkgs --refresh_chroots