Heroku-18 and Heroku-20 Stack Images Updated

Change effective on 26 July 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 curl from version 7.58.0-2ubuntu3.13 to 7.58.0-2ubuntu3.14
  • Updated gzip from version 1.6-5ubuntu1 to 1.6-5ubuntu1.1
  • Updated libcurl3-gnutls from version 7.58.0-2ubuntu3.13 to 7.58.0-2ubuntu3.14
  • Updated libcurl4 from version 7.58.0-2ubuntu3.13 to 7.58.0-2ubuntu3.14
  • Updated libruby2.5 from version 2.5.1-1ubuntu1.9 to 2.5.1-1ubuntu1.10
  • Updated libsystemd0 from version 237-3ubuntu10.48 to 237-3ubuntu10.50
  • Updated libudev1 from version 237-3ubuntu10.48 to 237-3ubuntu10.50
  • Updated linux-libc-dev from version 4.15.0-147.151 to 4.15.0-151.157
  • Updated ruby2.5 from version 2.5.1-1ubuntu1.9 to 2.5.1-1ubuntu1.10

Updates to packages available at build time only

  • Updated cmake from version 3.10.2-1ubuntu2.18.04.1 to 3.10.2-1ubuntu2.18.04.2
  • Updated cmake-data from version 3.10.2-1ubuntu2.18.04.1 to 3.10.2-1ubuntu2.18.04.2
  • Updated libcurl4-openssl-dev from version 7.58.0-2ubuntu3.13 to 7.58.0-2ubuntu3.14
  • Updated libsystemd-dev from version 237-3ubuntu10.48 to 237-3ubuntu10.50
  • Updated libudev-dev from version 237-3ubuntu10.48 to 237-3ubuntu10.50
  • Updated ruby2.5-dev from version 2.5.1-1ubuntu1.9 to 2.5.1-1ubuntu1.10

Stack: heroku-20

  • Updated curl from version 7.68.0-1ubuntu2.5 to 7.68.0-1ubuntu2.6
  • Updated libcurl3-gnutls from version 7.68.0-1ubuntu2.5 to 7.68.0-1ubuntu2.6
  • Updated libcurl4 from version 7.68.0-1ubuntu2.5 to 7.68.0-1ubuntu2.6
  • Updated libglib2.0-0 from version 2.64.6-1~ubuntu20.04.3 to 2.64.6-1~ubuntu20.04.4
  • Updated libruby2.7 from version 2.7.0-5ubuntu1.4 to 2.7.0-5ubuntu1.5
  • Updated libsystemd0 from version 245.4-4ubuntu3.7 to 245.4-4ubuntu3.11
  • Updated libudev1 from version 245.4-4ubuntu3.7 to 245.4-4ubuntu3.11
  • Updated linux-libc-dev from version 5.4.0-77.86 to 5.4.0-80.90
  • Updated ruby2.7 from version 2.7.0-5ubuntu1.4 to 2.7.0-5ubuntu1.5

Updates to packages available at build time only

  • Updated libcurl4-openssl-dev from version 7.68.0-1ubuntu2.5 to 7.68.0-1ubuntu2.6
  • Updated libglib2.0-bin from version 2.64.6-1~ubuntu20.04.3 to 2.64.6-1~ubuntu20.04.4
  • Updated libglib2.0-data from version 2.64.6-1~ubuntu20.04.3 to 2.64.6-1~ubuntu20.04.4
  • Updated libglib2.0-dev from version 2.64.6-1~ubuntu20.04.3 to 2.64.6-1~ubuntu20.04.4
  • Updated libglib2.0-dev-bin from version 2.64.6-1~ubuntu20.04.3 to 2.64.6-1~ubuntu20.04.4
  • Updated libsystemd-dev from version 245.4-4ubuntu3.7 to 245.4-4ubuntu3.11
  • Updated libudev-dev from version 245.4-4ubuntu3.7 to 245.4-4ubuntu3.11
  • Updated ruby2.7-dev from version 2.7.0-5ubuntu1.4 to 2.7.0-5ubuntu1.5