Heroku-18 and Heroku-20 Stack Images Updated

Change effective on 31 May 2022

We have updated the heroku-18 and heroku-20 stack images to pick up security fixes in upstream packages. The new stack images will be rolled out automatically over the next 24 hours. You do not need to redeploy your app or manually restart your dynos.

See this Dev Center article for an overview of the packages available in each stack image.

Changelog of packages

The following packages have been changed; a separate section for each stack (if applicable) lists packages that are only available at build time, but not at runtime.

Stack: heroku-18

  • Updated dirmngr from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated dpkg from version 1.19.0.5ubuntu2.3 to 1.19.0.5ubuntu2.4
  • Updated gnupg from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gnupg-l10n from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gnupg-utils from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpg from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpg-agent from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpg-wks-client from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpg-wks-server from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpgconf from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpgsm from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated gpgv from version 2.2.4-1ubuntu1.4 to 2.2.4-1ubuntu1.5
  • Updated libc-bin from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6
  • Updated libc-dev-bin from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6
  • Updated libc6 from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6
  • Updated libc6-dev from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6
  • Updated linux-libc-dev from version 4.15.0-177.186 to 4.15.0-180.189
  • Updated locales from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6
  • Updated multiarch-support from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6

Updates to packages available at build time only

  • Updated dpkg-dev from version 1.19.0.5ubuntu2.3 to 1.19.0.5ubuntu2.4
  • Updated libc6-i386 from version 2.27-3ubuntu1.5 to 2.27-3ubuntu1.6
  • Updated libdpkg-perl from version 1.19.0.5ubuntu2.3 to 1.19.0.5ubuntu2.4

Stack: heroku-20

  • Updated dpkg from version 1.19.7ubuntu3 to 1.19.7ubuntu3.2
  • Updated linux-libc-dev from version 5.4.0-110.124 to 5.4.0-113.127
  • Updated login from version 1:4.8.1-1ubuntu5.20.04.1 to 1:4.8.1-1ubuntu5.20.04.2
  • Updated passwd from version 1:4.8.1-1ubuntu5.20.04.1 to 1:4.8.1-1ubuntu5.20.04.2

Updates to packages available at build time only

  • Updated dpkg-dev from version 1.19.7ubuntu3 to 1.19.7ubuntu3.2
  • Updated libdpkg-perl from version 1.19.7ubuntu3 to 1.19.7ubuntu3.2
  • Updated libkmod-dev from version 27-1ubuntu2 to 27-1ubuntu2.1
  • Updated libkmod2 from version 27-1ubuntu2 to 27-1ubuntu2.1