Like what the old software centre did before Xenial, it showed a notice that the same software is already installed but with a different version (older or newer). This notice could be shown in the Details section of gnome-software, like the notice that is shown when installing an unconfined snap.
And if a third-party software already exists in the repositories (installed or not), it advised the user to install the one in the repositories (safer) instead of the third-party one, and showed both versions. ** Summary changed: - Show already-installed package version when installing a deb file + Show already-installed package version when installing a third-party one ** Changed in: gnome-software (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1815271 Title: Show already-installed package version when installing a third-party one Status in gnome-software package in Ubuntu: New Bug description: When installing a deb file, gnome-software should show the already- installed version if an older or newer version of the package was already installed. It should also apply to packages to be installed from repositories (not sure if this already works). ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: ubuntu-software 3.30.2-0ubuntu8 ProcVersionSignature: Ubuntu 4.18.0-13.14-generic 4.18.17 Uname: Linux 4.18.0-13-generic x86_64 ApportVersion: 2.20.10-0ubuntu13.2 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sat Feb 9 09:49:19 2019 InstallationDate: Installed on 2018-06-23 (230 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) InstalledPlugins: gnome-software-plugin-flatpak N/A gnome-software-plugin-limba N/A gnome-software-plugin-snap 3.30.2-0ubuntu8 PackageArchitecture: all ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IL SHELL=/bin/bash SourcePackage: gnome-software UpgradeStatus: Upgraded to cosmic on 2018-10-20 (111 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1815271/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp