I've encountered the same behavior twice. First time was a total surprise and I had to 'apt install darktable', which fortunately worked.
Today, I noted that darktable would be removed with apt dist-upgrade Requested output follows: [charlie@dicke:~]$ sudo apt dist-upgrade Reading package lists... Done Building dependency tree... Done Reading state information... Done Calculating upgrade... Done The following packages were automatically installed and are no longer required: apg blender-data bolt cracklib-runtime djvulibre-bin docbook-xml docbook-xsl expect fonts-liberation2 fwupd fwupd-amd64-signed geocode-glib-common gimp-data gir1.2-evince-3.0 gir1.2-goocanvas-2.0 gir1.2-javascriptcoregtk-4.1 gir1.2-malcontent-0 gjs gkbd-capplet gnome-control-center-data gnome-remote-desktop gnome-settings-daemon gnome-settings-daemon-common gnome-user-share gstreamer1.0-gtk3 gtk2-engines-pixbuf jq libann0 libapache2-mod-dnssd libavdevice59 libavfilter8 libavformat59 libbabl-0.1-0 libcapi20-3 libcbor0.8 libcdk5nc6 libcdt5 libcgraph6 libcolord-gtk4-1 libconfig-general-perl libconfig9 libcrack2 libdcmtk17 libembree3-3 libfilesys-df-perl libflashrom1 libflatpak0 libfreerdp-server2-2 libfreerdp2-2 libftdi1-2 libfwupd2 libgcab-1.0-0 libgdata-common libgdata22 libgee-0.8-2 libgegl-0.4-0 libgegl-common libgeoclue-2-0 libgeocode-glib-2-0 libges-1.0-0 libgimp2.0 libgjs0g libgnome-bg-4-2 libgnome-bluetooth-ui-3.0-13 libgnome-rr-4-2 libgnomekbd-common libgnomekbd8 libgoa-1.0-0b libgoa-1.0-common libgoocanvas2-perl libgps30 libgraphics-tiff-perl libgsound0 libgtk3-imageview-perl libgtk3-simplelist-perl libgtop-2.0-11 libgtop2-common libgts-0.7-5 libgts-bin libgumbo1 libgupnp-av-1.0-3 libgupnp-dlna-2.0-4 libgvpr2 libgweather-4-0 libgweather-4-common libibus-1.0-5 libimage-png-libpng-perl libjavascriptcoregtk-4.0-18 libjavascriptcoregtk-4.1-0 libjaylink0 libjcat1 libjim0.81 libjq1 libkf5js5 libkf5jsapi5 liblab-gamut1 libllvm15:i386 liblocale-codes-perl liblog4cplus-2.0.5 libmalcontent-0-0 libmalcontent-ui-1-1 libmanette-0.2-0 libmapnik3.1 libmediaart-2.0-0 libmozjs-102-0 libmumps-5.5 libmutter-12-0 libmypaint-1.5-1 libmypaint-common libnma-gtk4-0 libnss-myhostname libnunit-cil-dev libnunit-console-runner2.6.3-cil libnunit-mocks2.6.3-cil liboauth0 libokular5core10 libonig5 libopencolorio2.1 libopencv-photo406 libopencv-shape406 libopencv-stitching406 libopencv-viz406 libopenvdb10.0 libosdcpu3.5.0 libosdgpu3.5.0 libosmesa6 libosmgpsmap-1.0-1 libossp-uuid-perl libossp-uuid16 libostree-1-1 libpathplan4 libpdf-builder-perl libplacebo208 libpostproc56 libpugixml1v5 libpwquality-common libpwquality1 libpystring0 librest-1.0-0 librygel-core-2.8-0 librygel-db-2.8-0 librygel-renderer-2.8-0 librygel-server-2.8-0 libset-intspan-perl libsmbios-c2 libsnapd-glib-2-1 libspnav0 libspqr3 libswscale6 libtexluajit2 libtext-markdown-perl libtss2-tctildr0 libunistring2 libunistring2:i386 libvpx7:i386 libvtk9.1 libwinpr2-2 libwpe-1.0-1 libwpebackend-fdo-1.0-1 libxklavier16 libyaml-cpp0.8 linux-headers-6.4.0-2-common linux-kbuild-6.4.0-2 malcontent malcontent-gui mutter-common mutter-common-bin pdf2djvu power-profiles-daemon python3-mlt python3-pywt realmd rygel sgml-data tcl-expect tecla tesseract-ocr tesseract-ocr-eng tesseract-ocr-osd unpaper webp-pixbuf-loader xdg-dbus-proxy xsane-common yelp-xsl Use 'sudo apt autoremove' to remove them. The following packages will be REMOVED: blender darktable dvipng flowblade gimp gimp-ufraw gir1.2-webkit2-4.1 gmic gnome-control-center gnome-online-accounts gnome-sushi gnome-user-docs gnumeric-doc gnuplot-x11 gphoto2 graphviz gscan2pdf gvfs-backends libc-devtools libgmic1 libgoa-backend-1.0-1 libgphoto2-dev libgvc6 libimage-sane-perl libopencv-videoio406 libopenimageio2.4 libwebkit2gtk-4.1-0 libwine libyelp0 python3-opencv python3-pydot python3-pygraphviz sane-utils viking wine64 xsane yelp The following NEW packages will be installed: gnuplot-qt The following packages have been kept back: libavif15:i386 libgd3 libgd3:i386 The following packages will be upgraded: gir1.2-javascriptcoregtk-4.1 libjavascriptcoregtk-4.1-0 2 upgraded, 1 newly installed, 37 to remove and 3 not upgraded. Need to get 8,609 kB of archives. After this operation, 1,096 MB disk space will be freed. Do you want to continue? [Y/n] n Abort. Apt cache policy: [charlie@dicke:~]$ apt-cache policy Package files: 100 /var/lib/dpkg/status release a=now 500 http://dl.google.com/linux/chrome/deb stable/main amd64 Packages release v=1.0,o=Google LLC,a=stable,n=stable,l=Google,c=main,b=amd64 origin dl.google.com 200 http://deb.debian.org/debian testing/contrib i386 Packages release o=Debian,a=testing,n=trixie,l=Debian,c=contrib,b=i386 origin deb.debian.org 200 http://deb.debian.org/debian testing/contrib amd64 Packages release o=Debian,a=testing,n=trixie,l=Debian,c=contrib,b=amd64 origin deb.debian.org 200 http://deb.debian.org/debian testing/non-free i386 Packages release o=Debian,a=testing,n=trixie,l=Debian,c=non-free,b=i386 origin deb.debian.org 200 http://deb.debian.org/debian testing/non-free amd64 Packages release o=Debian,a=testing,n=trixie,l=Debian,c=non-free,b=amd64 origin deb.debian.org 200 http://deb.debian.org/debian testing/main i386 Packages release o=Debian,a=testing,n=trixie,l=Debian,c=main,b=i386 origin deb.debian.org 200 http://deb.debian.org/debian testing/main amd64 Packages release o=Debian,a=testing,n=trixie,l=Debian,c=main,b=amd64 origin deb.debian.org Pinned packages: I have attached a file with the per-package policies for each package set to be removed. It is interesting that a lot more than darktable is slated to be removed this time. Thank you for revisiting this issue! Charlie
blender: Installed: 3.4.1+dfsg-2+b1 Candidate: 3.4.1+dfsg-2+b1 Version table: *** 3.4.1+dfsg-2+b1 100 100 /var/lib/dpkg/status darktable: Installed: 4.4.2-1+b1 Candidate: 4.4.2-1+b1 Version table: *** 4.4.2-1+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status dvipng: Installed: 1.15-1.1+b1 Candidate: 1.15-1.1+b1 Version table: *** 1.15-1.1+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status flowblade: Installed: 2.10.0.4-1 Candidate: 2.10.0.4-1 Version table: *** 2.10.0.4-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 200 http://deb.debian.org/debian testing/main i386 Packages 100 /var/lib/dpkg/status gimp: Installed: 2.10.34-1 Candidate: 2.10.34-1 Version table: *** 2.10.34-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gimp-ufraw: Installed: 0.22-4 Candidate: 0.22-4 Version table: *** 0.22-4 100 100 /var/lib/dpkg/status gir1.2-webkit2-4.1: Installed: 2.42.1-1 Candidate: 2.42.1-2+b1 Version table: 2.42.1-2+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages *** 2.42.1-1 100 100 /var/lib/dpkg/status gmic: Installed: 2.9.4-4+b4 Candidate: 2.9.4-4+b4 Version table: *** 2.9.4-4+b4 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gnome-control-center: Installed: 1:45.0-2 Candidate: 1:45.0-2 Version table: *** 1:45.0-2 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gnome-online-accounts: Installed: 3.48.0-2 Candidate: 3.48.0-2 Version table: *** 3.48.0-2 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gnome-sushi: Installed: 45.0-1 Candidate: 45.0-1 Version table: *** 45.0-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gnome-user-docs: Installed: 45.0-1 Candidate: 45.0-1 Version table: *** 45.0-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 200 http://deb.debian.org/debian testing/main i386 Packages 100 /var/lib/dpkg/status gnumeric-doc: Installed: 1.12.55-1 Candidate: 1.12.55-1 Version table: *** 1.12.55-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 200 http://deb.debian.org/debian testing/main i386 Packages 100 /var/lib/dpkg/status gnuplot-x11: Installed: 5.4.4+dfsg1-2+b2 Candidate: 5.4.4+dfsg1-2+b2 Version table: *** 5.4.4+dfsg1-2+b2 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gphoto2: Installed: 2.5.28-2 Candidate: 2.5.28-2 Version table: *** 2.5.28-2 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status graphviz: Installed: 2.42.2-7+b3 Candidate: 2.42.2-7+b3 Version table: *** 2.42.2-7+b3 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status gscan2pdf: Installed: 2.13.2-1 Candidate: 2.13.2-1 Version table: *** 2.13.2-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 200 http://deb.debian.org/debian testing/main i386 Packages 100 /var/lib/dpkg/status gvfs-backends: Installed: 1.52.0-1 Candidate: 1.52.0-1 Version table: *** 1.52.0-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libc-devtools: Installed: 2.37-12 Candidate: 2.37-12 Version table: *** 2.37-12 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libgmic1: Installed: 2.9.4-4+b4 Candidate: 2.9.4-4+b4 Version table: *** 2.9.4-4+b4 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libgoa-backend-1.0-1: Installed: 3.48.0-2 Candidate: 3.48.0-2 Version table: *** 3.48.0-2 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libgphoto2-dev: Installed: 2.5.31-1 Candidate: 2.5.31-1 Version table: *** 2.5.31-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libgvc6: Installed: 2.42.2-7+b3 Candidate: 2.42.2-7+b3 Version table: *** 2.42.2-7+b3 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libimage-sane-perl: Installed: 5-2 Candidate: 5-2 Version table: *** 5-2 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libopencv-videoio406: Installed: 4.6.0+dfsg-13+b1 Candidate: 4.6.0+dfsg-13+b1 Version table: *** 4.6.0+dfsg-13+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libopenimageio2.4: Installed: 2.4.14.0+dfsg-1 Candidate: 2.4.14.0+dfsg-1 Version table: *** 2.4.14.0+dfsg-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libwebkit2gtk-4.1-0: Installed: 2.42.1-1 Candidate: 2.42.1-2+b1 Version table: 2.42.1-2+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages *** 2.42.1-1 100 100 /var/lib/dpkg/status libwine: Installed: 8.0.1~repack-3 Candidate: 8.0.1~repack-3 Version table: *** 8.0.1~repack-3 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status libyelp0: Installed: 42.2-1 Candidate: 42.2-1 Version table: *** 42.2-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status python3-opencv: Installed: 4.6.0+dfsg-13+b1 Candidate: 4.6.0+dfsg-13+b1 Version table: *** 4.6.0+dfsg-13+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status python3-pydot: Installed: 1.4.2-1 Candidate: 1.4.2-1 Version table: *** 1.4.2-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 200 http://deb.debian.org/debian testing/main i386 Packages 100 /var/lib/dpkg/status python3-pygraphviz: Installed: 1.7-3+b4 Candidate: 1.7-3+b4 Version table: *** 1.7-3+b4 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status sane-utils: Installed: 1.2.1-5 Candidate: 1.2.1-5 Version table: *** 1.2.1-5 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status viking: Installed: 1.10-2+b1 Candidate: 1.10-2+b1 Version table: *** 1.10-2+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status wine64: Installed: 8.0.1~repack-3 Candidate: 8.0.1~repack-3 Version table: *** 8.0.1~repack-3 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status xsane: Installed: 0.999-12+b1 Candidate: 0.999-12+b1 Version table: *** 0.999-12+b1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status yelp: Installed: 42.2-1 Candidate: 42.2-1 Version table: *** 42.2-1 200 200 http://deb.debian.org/debian testing/main amd64 Packages 100 /var/lib/dpkg/status