The App Lounge has Signal 5.51.7 available which was released on October 4, 2022. I 'm using that version after a similar warning about Signal app expiration
Whit the dreamlte Samsung s8 we are still on android 9, and so we have the old appstore witch is unfortunately not or badly maintained with signal 5.42.8 from 13.7.22.
I have the same problem on a FP3. The phone is still on Pie, i am one of the users who are waiting for the OTA update. My signal went out today and is no longer usable. Until now the program was always updated just before expiration, very annoying the whole thing. I would now install the APK directly from the website.
Would someone be so kind and can give me a tutorial on how to verify the APK file. I have no clue. Do I do this on the phone, or on the computer in my case MacOS?
The fingerprint is easily checked on a Linux PC (https://gist.github.com/nolanlawson/aae1735f54012da8538adf05817a01a7) whether Mac make it easy, idk, I did not find a simple link in a quick search; and yes, you would do the verification if you thought it necessary on a PC rather than the device.
Thanks for the feedback!
Since several people have the problem, see also here Signal-app only availabel in google play store, As long as the verification remains so opaque for me, I installed the recommended Langis version via F-Droid.
Many greetings