IvanR, user41a8, and JEndahl,
While likely not a factor in this case, please identify the version of the platform (Ubuntu) and show - not just tell - what you did and the result in a code block.
On my Ubuntu 24.04.2 desktop, the native 1password package has updated normally with each of many releases and is currently at 8.10.75.
$ apt info 1password
Package: 1password
Version: 8.10.75
Priority: optional
Section: default
Maintainer: 1Password <support@1password.com>
Installed-Size: 612 MB
Depends: curl, gnupg2, libasound2, libatk-bridge2.0-0, libatk1.0-0, libc6 (>= 2.27), libcurl4, libdrm2, libgbm1, libgtk-3-0, libnotify4, libnss3, libxcb-shape0, libxcb-xfixes0, libxshmfence1, libudev1, xdg-utils
Recommends: libappindicator3-1, libappindicator1
Homepage: https://1password.com
License: LicenseRef-1Password-Proprietary
Vendor: 1Password <support@1password.com>
Download-Size: 141 MB
APT-Manual-Installed: yes
APT-Sources: https://downloads.1password.com/linux/debian/amd64 stable/main amd64 Packages
Description: Password manager and secure wallet
When I try to install the named latest .deb with apt, it tells me that I have the latest version based on resolving the package name, which in this case it appears true. You can install the .deb using dpkg.
$ wget https://downloads.1password.com/linux/debian/amd64/stable/1password-latest.deb
...
$ sudo apt install ./1password-latest.deb
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting '1password' instead of './1password-latest.deb'
1password is already the newest version (8.10.75).
0 upgraded, 0 newly installed, 0 to remove and 5 not upgraded.
$ sudo dpkg -i 1password-latest.deb
(Reading database ... 268363 files and directories currently installed.)
Preparing to unpack 1password-latest.deb ...
Unpacking 1password (8.10.75) over (8.10.75) ...
Setting up 1password (8.10.75) ...
Installing the debian auto-update channel
Processing triggers for hicolor-icon-theme (0.17-2) ...
Processing triggers for gnome-menus (3.36.0-1.1ubuntu3) ...
Processing triggers for desktop-file-utils (0.27-2build1) ...
Processing triggers for mailcap (3.70+nmu1ubuntu1) ...
Please show the relevant results of `apt info 1password`, `apt update`, and `apt upgrade` along with any other relevant test and their results.