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

Change effective on 09 November 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 apt from version 2.4.14 to 2.4.15ubuntu0.1
  • Updated apt-transport-https from version 2.4.14 to 2.4.15ubuntu0.1
  • Updated apt-utils from version 2.4.14 to 2.4.15ubuntu0.1
  • Updated bind9-dnsutils from version 1:9.18.39-0ubuntu0.22.04.7 to 1:9.18.39-0ubuntu0.22.04.8
  • Updated bind9-host from version 1:9.18.39-0ubuntu0.22.04.7 to 1:9.18.39-0ubuntu0.22.04.8
  • Updated bind9-libs from version 1:9.18.39-0ubuntu0.22.04.7 to 1:9.18.39-0ubuntu0.22.04.8
  • Updated ca-certificates from version 20260816ubuntu0.22.04.1 to 20260816ubuntu0.22.04.2
  • Updated ca-certificates-java from version 20190909ubuntu1.3 to 20190909ubuntu1.4
  • Updated dnsutils from version 1:9.18.39-0ubuntu0.22.04.7 to 1:9.18.39-0ubuntu0.22.04.8
  • Updated libapt-pkg6.0 from version 2.4.14 to 2.4.15ubuntu0.1
  • Updated libglib2.0-0 from version 2.72.4-0ubuntu2.10 to 2.72.4-0ubuntu2.11
  • Updated libpcre2-8-0 from version 10.39-3ubuntu0.1 to 10.39-3ubuntu0.2
  • Updated linux-libc-dev from version 5.15.0-202.212 to 5.15.0-203.213

Updates to packages available at build time only

  • Updated libapt-pkg-dev from version 2.4.14 to 2.4.15ubuntu0.1
  • Updated libglib2.0-bin from version 2.72.4-0ubuntu2.10 to 2.72.4-0ubuntu2.11
  • Updated libglib2.0-data from version 2.72.4-0ubuntu2.10 to 2.72.4-0ubuntu2.11
  • Updated libglib2.0-dev from version 2.72.4-0ubuntu2.10 to 2.72.4-0ubuntu2.11
  • Updated libglib2.0-dev-bin from version 2.72.4-0ubuntu2.10 to 2.72.4-0ubuntu2.11
  • Updated libpcre2-16-0 from version 10.39-3ubuntu0.1 to 10.39-3ubuntu0.2
  • Updated libpcre2-32-0 from version 10.39-3ubuntu0.1 to 10.39-3ubuntu0.2
  • Updated libpcre2-dev from version 10.39-3ubuntu0.1 to 10.39-3ubuntu0.2
  • Updated libpcre2-posix3 from version 10.39-3ubuntu0.1 to 10.39-3ubuntu0.2

Stack: heroku-24

  • Updated apt from version 2.8.3 to 2.8.4ubuntu0.1
  • Updated bind9-dnsutils from version 1:9.18.39-0ubuntu0.24.04.8 to 1:9.18.39-0ubuntu0.24.04.9
  • Updated bind9-host from version 1:9.18.39-0ubuntu0.24.04.8 to 1:9.18.39-0ubuntu0.24.04.9
  • Updated bind9-libs from version 1:9.18.39-0ubuntu0.24.04.8 to 1:9.18.39-0ubuntu0.24.04.9
  • Updated ca-certificates from version 20260816ubuntu0.24.04.1 to 20260816ubuntu0.24.04.2
  • Updated ca-certificates-java from version 20240118 to 20240118ubuntu0.24.04.1
  • Updated libapt-pkg6.0t64 from version 2.8.3 to 2.8.4ubuntu0.1
  • Updated libpcre2-8-0 from version 10.42-4ubuntu2.1 to 10.42-4ubuntu2.2
  • Updated libsqlite3-0 from version 3.45.1-1ubuntu2.8 to 3.45.1-1ubuntu2.9

Updates to packages available at build time only

  • Updated libpcre2-16-0 from version 10.42-4ubuntu2.1 to 10.42-4ubuntu2.2
  • Updated libpcre2-32-0 from version 10.42-4ubuntu2.1 to 10.42-4ubuntu2.2
  • Updated libpcre2-dev from version 10.42-4ubuntu2.1 to 10.42-4ubuntu2.2
  • Updated libpcre2-posix3 from version 10.42-4ubuntu2.1 to 10.42-4ubuntu2.2
  • Updated linux-libc-dev from version 6.8.0-147.147 to 6.8.0-149.149

Stack: heroku-26

  • Updated apt from version 3.2.0 to 3.2.1ubuntu0.1
  • Updated base-files from version 14ubuntu6.2 to 14ubuntu6.3
  • Updated bind9-dnsutils from version 1:9.20.24-1ubuntu0.4 to 1:9.20.24-1ubuntu0.5
  • Updated bind9-host from version 1:9.20.24-1ubuntu0.4 to 1:9.20.24-1ubuntu0.5
  • Updated bind9-libs from version 1:9.20.24-1ubuntu0.4 to 1:9.20.24-1ubuntu0.5
  • Updated ca-certificates from version 20260816ubuntu0.26.04.1 to 20260816ubuntu0.26.04.2
  • Updated ca-certificates-java from version 20260311 to 20260311ubuntu0.26.04.1
  • Updated libapt-pkg7.0 from version 3.2.0 to 3.2.1ubuntu0.1
  • Updated libpcre2-8-0 from version 10.46-1build1 to 10.46-1ubuntu0.1

Updates to packages available at build time only

  • Updated libpcre2-16-0 from version 10.46-1build1 to 10.46-1ubuntu0.1
  • Updated libpcre2-32-0 from version 10.46-1build1 to 10.46-1ubuntu0.1
  • Updated libpcre2-dev from version 10.46-1build1 to 10.46-1ubuntu0.1
  • Updated libpcre2-posix3 from version 10.46-1build1 to 10.46-1ubuntu0.1
  • Updated linux-libc-dev from version 7.0.0-42.42 to 7.0.0-43.43