Package: aptitude Version: 0.8.13-7 Here aptitude doesn't calculate the numbers right, and says "upgrade available", when it really is "downgrade available". So maybe it should just say "other version available".
$ aptitude -v show pandoc Package: pandoc Version: 3.10-1 State: installed Automatically installed: no Archive: now Package: pandoc Version: 3.1.11.1+ds-2 State: installed (3.10-1), upgrade available (3.1.11.1+ds-2) Filename: pool/main/p/pandoc/pandoc_3.1.11.1+ds-2_arm64.deb Archive: stable Yes, I have Upstream's github version installed. By the way $ aptitude -s install pandoc pandoc is already installed at the requested version (3.10-1) pandoc is already installed at the requested version (3.10-1) Odd that it repeats itself.

