Heroku-18 and Heroku-20 Stack Images Updated

Change effective on 02 February 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 linux-libc-dev from version 4.15.0-166.174 to 4.15.0-167.175
  • Updated login from version 1:4.5-1ubuntu2 to 1:4.5-1ubuntu2.2
  • Updated passwd from version 1:4.5-1ubuntu2 to 1:4.5-1ubuntu2.2

Updates to packages available at build time only

Stack: heroku-20

  • Updated linux-libc-dev from version 5.4.0-96.109 to 5.4.0-97.110

Updates to packages available at build time only