Heroku-18 and Heroku-20 Stack Images Updated

Change effective on 25 August 2021

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 distro-info-data from version 0.37ubuntu0.10 to 0.37ubuntu0.11
  • Updated libpq5 from version 13.3-1.pgdg18.04+1 to 13.4-1.pgdg18.04+1
  • Updated libssl1.1 from version 1.1.1-1ubuntu2.1~18.04.9 to 1.1.1-1ubuntu2.1~18.04.13
  • Updated libsystemd0 from version 237-3ubuntu10.50 to 237-3ubuntu10.51
  • Updated libudev1 from version 237-3ubuntu10.50 to 237-3ubuntu10.51
  • Updated linux-libc-dev from version 4.15.0-153.160 to 4.15.0-154.161
  • Updated openssh-client from version 1:7.6p1-4ubuntu0.3 to 1:7.6p1-4ubuntu0.5
  • Updated openssh-server from version 1:7.6p1-4ubuntu0.3 to 1:7.6p1-4ubuntu0.5
  • Updated openssh-sftp-server from version 1:7.6p1-4ubuntu0.3 to 1:7.6p1-4ubuntu0.5
  • Updated openssl from version 1.1.1-1ubuntu2.1~18.04.9 to 1.1.1-1ubuntu2.1~18.04.13
  • Updated postgresql-client-13 from version 13.3-1.pgdg18.04+1 to 13.4-1.pgdg18.04+1

Updates to packages available at build time only

  • Updated libpq-dev from version 13.3-1.pgdg18.04+1 to 13.4-1.pgdg18.04+1
  • Updated libssl-dev from version 1.1.1-1ubuntu2.1~18.04.9 to 1.1.1-1ubuntu2.1~18.04.13
  • Updated libsystemd-dev from version 237-3ubuntu10.50 to 237-3ubuntu10.51
  • Updated libudev-dev from version 237-3ubuntu10.50 to 237-3ubuntu10.51
  • Updated postgresql-server-dev-13 from version 13.3-1.pgdg18.04+1 to 13.4-1.pgdg18.04+1

Stack: heroku-20

  • Updated base-files from version 11ubuntu5.3 to 11ubuntu5.4
  • Updated distro-info-data from version 0.43ubuntu1.5 to 0.43ubuntu1.6
  • Updated language-pack-en from version 1:20.04+20210121 to 1:20.04+20210802
  • Updated language-pack-en-base from version 1:20.04+20210121 to 1:20.04+20210802
  • Updated libpq5 from version 13.3-1.pgdg20.04+1 to 13.4-1.pgdg20.04+1
  • Updated libssl1.1 from version 1.1.1f-1ubuntu2.4 to 1.1.1f-1ubuntu2.8
  • Updated linux-libc-dev from version 5.4.0-80.90 to 5.4.0-81.91
  • Updated openssh-client from version 1:8.2p1-4ubuntu0.2 to 1:8.2p1-4ubuntu0.3
  • Updated openssh-server from version 1:8.2p1-4ubuntu0.2 to 1:8.2p1-4ubuntu0.3
  • Updated openssh-sftp-server from version 1:8.2p1-4ubuntu0.2 to 1:8.2p1-4ubuntu0.3
  • Updated openssl from version 1.1.1f-1ubuntu2.4 to 1.1.1f-1ubuntu2.8
  • Updated postgresql-client-13 from version 13.3-1.pgdg20.04+1 to 13.4-1.pgdg20.04+1

Updates to packages available at build time only

  • Updated libpq-dev from version 13.3-1.pgdg20.04+1 to 13.4-1.pgdg20.04+1
  • Updated libssl-dev from version 1.1.1f-1ubuntu2.4 to 1.1.1f-1ubuntu2.8
  • Updated postgresql-server-dev-13 from version 13.3-1.pgdg20.04+1 to 13.4-1.pgdg20.04+1