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I am a newer for using Ubuntu. I am using Ubuntu 18.04, and try to upgrade libwind0-heimdal to 7.5.0+dfsg-1ubuntu0.4 from 7.5.0+dfsg-1ubuntu0.3. The system displys 7.5.0+dfsg-1ubuntu0.3 is latest version of libwind0-heimdal after I execute apt update and apt install libwind0-heimdal. But the 7.5.0+dfsg-1ubuntu0.4 is released in fact. So why the latest version I can't build by using apt command?

Surely, I still can build latest version in aonther way such as manually install.

chfyljt
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  • Ubuntu 18.04 or the 2018-April release, reaches the end of it's 5 years of standard support in April 2023; ie. next month. You should instead be considering how to upgrade your system, or are you waiting for the last supported day next month? ESM or Pro support is available, but that just applies security patches to the existing packages where supported in deb format and not requiring conversion to snap for updates – guiverc Mar 16 '23 at 07:20
  • I do see libwind0-heimdal | 7.5.0+dfsg-1ubuntu0.4 | bionic-updates | amd64, arm64, armhf, i386, ppc64el, s390x so I'd suggest running sudo apt update to update your software lists & read that output for clues.. ie. are there any missing lines, what mirror are you using? or using the main archive? If using a mirror I'd check it's up-to-date, but we're limited to the detail you provided. I'd plan your release-upgrade rather soon though – guiverc Mar 16 '23 at 07:24
  • @guiverc Thanks for your reply. I just want to know if apt can upgrade program in this solution. The link you shared, I have saw it on last some days so apt command should delay the upgrade program until they will be stable. Can I understand in this way? – chfyljt Mar 16 '23 at 07:30
  • @guiverc I execute apt install after apt update so the list should newest. – chfyljt Mar 16 '23 at 07:33
  • See my last comment; ie. in your position I'd return to basics... ie. update your software lists (you're getting outdated packages I agree which highlights either you've not updated your machines software lists OR you're using a mirror that needs changing)... You do this with sudo apt update & reading output from that command... Look for warnings, errors OR just missing lines from that output; that's where I'd expect the problem to be shown; we can only help you if you provide that output; that's where I'd start. If I saw nothing wrong there, I'd likely move to apt-cache policy ... – guiverc Mar 16 '23 at 07:33
  • Once you've confirmed (using sudo apt update without errors or missing lines), then you can start to explore on specific packages, where I'd use apt-cache policy libwind0-heimdal ie. down to package level where it'll show where your latest package is available & where your machine will get it from.. This output will provide detail you can explore such as you're using an outdated mirror, though that detail can also be obtained via prior sudo apt update command & quick check online using https://launchpad.net/ubuntu/+archivemirrors etc – guiverc Mar 16 '23 at 07:47
  • I saw some programs remind to be upgrade after executing sudo apt update but not have libwind0-heimdal. I saw the Installed: 7.5.0+dfsg-1ubuntu0.3 and Candidate: 7.5.0+dfsg-1ubuntu0.3 after apt-cache policy libwind0-heimdal – chfyljt Mar 16 '23 at 08:01
  • If you didn't get a source in the apt-cache policy command in your output to examine, then your issue is the prior sudo apt update step & missing output there... ie. check your sources, as if you're using one of the architectures I listed in the comment with package name (& repo, ie. then you have no valid source for bionic-updates). If you have additional input; edit your question & add it there; this is a Q&A site and not a forum (comments are from readers to the Original Poster & will get removed once details/clarifications exist in question) – guiverc Mar 16 '23 at 08:55

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