Programs using qtwebengine (like quasselclient, chromium, nextcloud, kmail ...) stop working with the following error:
symbol lookup error: /lib/x86_64-linux-gnu/libQt5WebEngineCore.so.5: undefined symbol: _ZN6snappy11RawCompressEPKcmPcPm
This is caused by new libsnappy1v5 = 1.2.0-1
Downgrading fixed it for me.
LANG=C apt policy libsnappy1v5
libsnappy1v5:
Installed: 1.1.10-1+b1
Candidate: 1.2.0-1
Version table:
1.2.0-1 500
500 https://deb.debian.org/debian unstable/main amd64 Packages
500 https://incoming.debian.org/debian-buildd buildd-unstable/main amd64 Packages
*** 1.1.10-1+b1 100
100 /var/lib/dpkg/status
https://snapshot.debian.org/package/snappy/1.1.10-1/#libsnappy1v5_1.1.10-1:2b:b1Thr bug report
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1070217