*[`build-compare`](https://github.com/openSUSE/build-compare/issues/52) caused [a regression](https://github.com/openSUSE/build-compare/issues/53) for a few days
*[FIXME](https://documentation.suse.com/sbp/server-linux/html/SBP-SLSA4/index.html) SUSE announced on SUSECon that it follows SLSA level 4, however, rpm time stamps are not normalized, so no bit-identical reproducible builds are possible atm ; [some in-toto provenance files published for SUSE's SLE-15-SP4](https://download.opensuse.org/update/leap/15.4/sle/noarch/) as one result of the SLSA level 4 effort. Old binaries are not rebuilt, so only new builds (e.g. maintenance updates) have this metadata added.