Heroku-22, Heroku-24 and Heroku-26 stacks updated

Change effective on 22 October 2026

We have updated the heroku-22, heroku-24 and heroku-26 stacks to pick up security and bug fixes in upstream packages. The new base images for each stack will roll out automatically to the Common Runtime over the next 48 hours, followed by Private Spaces.

If you use Heroku’s default buildpack-powered build system/stacks, you don’t need to redeploy your app to receive these changes. For Cedar-generation apps, each time a dyno starts, the slug is overlaid on top of the most recent base image. For Fir-generation apps, the built image is rebased on top of the most recent base image.

If your app uses Heroku’s container stack, you must rebuild your app’s Docker image to pick up updates in the base image specified in your Dockerfile.

See this Dev Center article for an overview of the package versions available in each stack’s base image.

The Heroku-22 stack is deprecated and will reach end-of-life on April 30th, 2027. Upgrade to a newer stack as soon as possible. See the Heroku-22 End-Of-Life FAQ for more details.

Changelog of packages

Stack: heroku-22

  • Updated distro-info-data from version 0.72-0ubuntu0.22.04.1 to 2026.10.12-0ubuntu0.22.04.1
  • Updated ghostscript from version 9.55.0~dfsg1-0ubuntu5.14 to 9.55.0~dfsg1-0ubuntu5.15
  • Updated libc-ares2 from version 1.18.1-1ubuntu0.22.04.3 to 1.18.1-1ubuntu0.22.04.4
  • Updated libgs9 from version 9.55.0~dfsg1-0ubuntu5.14 to 9.55.0~dfsg1-0ubuntu5.15
  • Updated libgs9-common from version 9.55.0~dfsg1-0ubuntu5.14 to 9.55.0~dfsg1-0ubuntu5.15
  • Updated libnss3 from version 2:3.98-0ubuntu0.22.04.4 to 2:3.98-0ubuntu0.22.04.5
  • Updated libpoppler-glib8 from version 22.02.0-2ubuntu0.14 to 22.02.0-2ubuntu0.15
  • Updated libpoppler118 from version 22.02.0-2ubuntu0.14 to 22.02.0-2ubuntu0.15
  • Updated nano from version 6.2-1ubuntu0.2 to 6.2-1ubuntu0.3
  • Updated poppler-utils from version 22.02.0-2ubuntu0.14 to 22.02.0-2ubuntu0.15

Updates to packages available at build time only

  • Updated libgs-dev from version 9.55.0~dfsg1-0ubuntu5.14 to 9.55.0~dfsg1-0ubuntu5.15
  • Updated libunbound8 from version 1.13.1-1ubuntu5.16 to 1.13.1-1ubuntu5.17

Stack: heroku-24

  • Updated ghostscript from version 10.02.1~dfsg1-0ubuntu7.9 to 10.02.1~dfsg1-0ubuntu7.10
  • Updated gir1.2-glib-2.0 from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libcares2 from version 1.27.0-1.0ubuntu1 to 1.27.0-1.0ubuntu1.1
  • Updated libglib2.0-0t64 from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libgs-common from version 10.02.1~dfsg1-0ubuntu7.9 to 10.02.1~dfsg1-0ubuntu7.10
  • Updated libgs10 from version 10.02.1~dfsg1-0ubuntu7.9 to 10.02.1~dfsg1-0ubuntu7.10
  • Updated libgs10-common from version 10.02.1~dfsg1-0ubuntu7.9 to 10.02.1~dfsg1-0ubuntu7.10
  • Updated libnss3 from version 2:3.98-1ubuntu0.2 to 2:3.98-1ubuntu0.3
  • Updated libpoppler-glib8t64 from version 24.02.0-1ubuntu9.10 to 24.02.0-1ubuntu9.11
  • Updated libpoppler134 from version 24.02.0-1ubuntu9.10 to 24.02.0-1ubuntu9.11
  • Updated poppler-utils from version 24.02.0-1ubuntu9.10 to 24.02.0-1ubuntu9.11

Updates to packages available at build time only

  • Updated gir1.2-glib-2.0-dev from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libgirepository-2.0-0 from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libglib2.0-bin from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libglib2.0-data from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libglib2.0-dev from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libglib2.0-dev-bin from version 2.80.0-6ubuntu3.9 to 2.80.0-6ubuntu3.10
  • Updated libunbound8 from version 1.19.2-1ubuntu3.10 to 1.19.2-1ubuntu3.12

Stack: heroku-26

  • Updated ghostscript from version 10.06.0~dfsg-3ubuntu1.1 to 10.06.0~dfsg-3ubuntu1.2
  • Updated libcares2 from version 1.34.6-1ubuntu0.1 to 1.34.6-1ubuntu0.2
  • Updated libgs-common from version 10.06.0~dfsg-3ubuntu1.1 to 10.06.0~dfsg-3ubuntu1.2
  • Updated libgs10 from version 10.06.0~dfsg-3ubuntu1.1 to 10.06.0~dfsg-3ubuntu1.2
  • Updated libgs10-common from version 10.06.0~dfsg-3ubuntu1.1 to 10.06.0~dfsg-3ubuntu1.2
  • Updated libnss3 from version 2:3.120-1ubuntu2.1 to 2:3.120-1ubuntu2.2
  • Updated libpoppler-glib8t64 from version 26.01.0-2ubuntu0.2 to 26.01.0-2ubuntu0.3
  • Updated libpoppler156 from version 26.01.0-2ubuntu0.2 to 26.01.0-2ubuntu0.3
  • Updated poppler-utils from version 26.01.0-2ubuntu0.2 to 26.01.0-2ubuntu0.3

Updates to packages available at build time only

  • Updated libunbound8 from version 1.24.2-1ubuntu2.3 to 1.24.2-1ubuntu2.4