Hi, Since there was a 0-day NMU that reverts libxml2 from 2.9.2 to 2.9.1 uploaded to unstable, which is strongly disagreed in discussion, I'm providing a brief audit of problems behind this revert and would kindly ask everyone do not do any 0-day NMU to libxml2 from now on even if you strongly believe you have good reasons, and please _never_ do version revert even if you strongly believe you have good reasons.
Known regressions lead by revert: 1. Bug #754424: spurious parser error affecting xmllint 2. Bug #781232: xmlSafeURI: Fails to unparse URI with empty host part Solved by following NMU of libvirt maintainer 3. libicu dbg package was dropped which makes the debug symbols dependency broken 4. Not-approved patch in the name of security update. 5. Long list of NULL pointers, dereferences, and missing checks (upstream side) A new upload of libxml2 has landed in unstable, going to 2.9.2 again with all mentioned problems resolved, RC bugs closed. Thanks, Aron