Heroku-16 and Heroku-18 Stack Images Updated

Change effective on 30 September 2020

We have updated the heroku-16 and heroku-18 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-16

  • Updated libpq5 from version 12.4-1.pgdg16.04+1 to 13.0-1.pgdg16.04+1
  • Updated libssl1.0.0 from version 1.0.2g-1ubuntu4.16 to 1.0.2g-1ubuntu4.17
  • Updated libsystemd0 from version 229-4ubuntu21.28 to 229-4ubuntu21.29
  • Updated libudev1 from version 229-4ubuntu21.28 to 229-4ubuntu21.29
  • Updated linux-libc-dev from version 4.4.0-189.219 to 4.4.0-190.220
  • Updated openssl from version 1.0.2g-1ubuntu4.16 to 1.0.2g-1ubuntu4.17
  • Updated systemd from version 229-4ubuntu21.28 to 229-4ubuntu21.29
  • Updated systemd-sysv from version 229-4ubuntu21.28 to 229-4ubuntu21.29

Updates to packages available at build time only

  • Updated libpq-dev from version 12.4-1.pgdg16.04+1 to 13.0-1.pgdg16.04+1
  • Updated libssl-dev from version 1.0.2g-1ubuntu4.16 to 1.0.2g-1ubuntu4.17
  • Updated libssl-doc from version 1.0.2g-1ubuntu4.16 to 1.0.2g-1ubuntu4.17
  • Updated libsystemd-dev from version 229-4ubuntu21.28 to 229-4ubuntu21.29
  • Updated libudev-dev from version 229-4ubuntu21.28 to 229-4ubuntu21.29

Stack: heroku-18

  • Updated bsdutils from version 1:2.31.1-0.4ubuntu3.6 to 1:2.31.1-0.4ubuntu3.7
  • Updated dirmngr from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated fdisk from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated gnupg from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gnupg-l10n from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gnupg-utils from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpg from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpg-agent from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpg-wks-client from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpg-wks-server from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpgconf from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpgsm from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated gpgv from version 2.2.4-1ubuntu1.2 to 2.2.4-1ubuntu1.3
  • Updated libblkid1 from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated libfdisk1 from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated libmount1 from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated libpq5 from version 12.4-1.pgdg18.04+1 to 13.0-1.pgdg18.04+1
  • Updated libsmartcols1 from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated libssl1.0.0 from version 1.0.2n-1ubuntu5.3 to 1.0.2n-1ubuntu5.4
  • Updated libuuid1 from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated mount from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Updated util-linux from version 2.31.1-0.4ubuntu3.6 to 2.31.1-0.4ubuntu3.7
  • Added libc-dev-bin version 2.27-3ubuntu1.2
  • Added libc6-dev version 2.27-3ubuntu1.2
  • Added linux-libc-dev version 4.15.0-118.119

Updates to packages available at build time only

  • Updated libpq-dev from version 12.4-1.pgdg18.04+1 to 13.0-1.pgdg18.04+1
  • Updated linux-libc-dev from version 4.15.0-117.118 to 4.15.0-118.119