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

Change effective on 21 September 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 libc-bin from version 2.35-0ubuntu3.14 to 2.35-0ubuntu3.15
  • Updated libc-dev-bin from version 2.35-0ubuntu3.14 to 2.35-0ubuntu3.15
  • Updated libc6 from version 2.35-0ubuntu3.14 to 2.35-0ubuntu3.15
  • Updated libc6-dev from version 2.35-0ubuntu3.14 to 2.35-0ubuntu3.15
  • Updated libgssapi-krb5-2 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libk5crypto3 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libkrb5-3 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libkrb5support0 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libperl5.34 from version 5.34.0-3ubuntu1.8 to 5.34.0-3ubuntu1.9
  • Updated libpython3.10-minimal from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18
  • Updated libpython3.10-stdlib from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18
  • Updated librabbitmq4 from version 0.10.0-1ubuntu2.1 to 0.10.0-1ubuntu2.2
  • Updated libsqlite3-0 from version 3.37.2-2ubuntu0.7 to 3.37.2-2ubuntu0.8
  • Updated linux-libc-dev from version 5.15.0-190.200 to 5.15.0-191.201
  • Updated locales from version 2.35-0ubuntu3.14 to 2.35-0ubuntu3.15
  • Updated openssh-client from version 1:8.9p1-3ubuntu0.16 to 1:8.9p1-3ubuntu0.17
  • Updated openssh-server from version 1:8.9p1-3ubuntu0.16 to 1:8.9p1-3ubuntu0.17
  • Updated openssh-sftp-server from version 1:8.9p1-3ubuntu0.16 to 1:8.9p1-3ubuntu0.17
  • Updated perl from version 5.34.0-3ubuntu1.8 to 5.34.0-3ubuntu1.9
  • Updated perl-base from version 5.34.0-3ubuntu1.8 to 5.34.0-3ubuntu1.9
  • Updated perl-modules-5.34 from version 5.34.0-3ubuntu1.8 to 5.34.0-3ubuntu1.9
  • Updated python3.10 from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18
  • Updated python3.10-minimal from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18

Updates to packages available at build time only

  • Updated bison from version 2:3.8.2+dfsg-1build1 to 2:3.8.2+dfsg-1ubuntu0.22.04.1
  • Updated krb5-multidev from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libgssrpc4 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libkadm5clnt-mit12 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libkadm5srv-mit12 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libkdb5-10 from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libkrb5-dev from version 1.19.2-2ubuntu0.8 to 1.19.2-2ubuntu0.10
  • Updated libpython3.10 from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18
  • Updated libpython3.10-dev from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18
  • Updated librabbitmq-dev from version 0.10.0-1ubuntu2.1 to 0.10.0-1ubuntu2.2
  • Updated python3.10-dev from version 3.10.12-1~22.04.17 to 3.10.12-1~22.04.18

Stack: heroku-24

  • Updated base-files from version 13ubuntu10.4 to 13ubuntu10.5
  • Updated dirmngr from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gnupg from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gnupg-utils from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gpg from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gpg-agent from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gpgconf from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gpgsm from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated gpgv from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated keyboxd from version 2.4.4-2ubuntu17.4 to 2.4.4-2ubuntu17.6
  • Updated libaom3 from version 3.8.2-2ubuntu0.1 to 3.8.2-2ubuntu0.2
  • Updated libc-bin from version 2.39-0ubuntu8.8 to 2.39-0ubuntu8.9
  • Updated libc6 from version 2.39-0ubuntu8.8 to 2.39-0ubuntu8.9
  • Updated libgssapi-krb5-2 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libk5crypto3 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libkrb5-3 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libkrb5support0 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libperl5.38t64 from version 5.38.2-3.2ubuntu0.4 to 5.38.2-3.2ubuntu0.6
  • Updated librabbitmq4 from version 0.11.0-1ubuntu0.1 to 0.11.0-1ubuntu0.2
  • Updated libsqlite3-0 from version 3.45.1-1ubuntu2.7 to 3.45.1-1ubuntu2.8
  • Updated locales from version 2.39-0ubuntu8.8 to 2.39-0ubuntu8.9
  • Updated openssh-client from version 1:9.6p1-3ubuntu13.18 to 1:9.6p1-3ubuntu13.19
  • Updated openssh-server from version 1:9.6p1-3ubuntu13.18 to 1:9.6p1-3ubuntu13.19
  • Updated openssh-sftp-server from version 1:9.6p1-3ubuntu13.18 to 1:9.6p1-3ubuntu13.19
  • Updated perl from version 5.38.2-3.2ubuntu0.4 to 5.38.2-3.2ubuntu0.6
  • Updated perl-base from version 5.38.2-3.2ubuntu0.4 to 5.38.2-3.2ubuntu0.6
  • Updated perl-modules-5.38 from version 5.38.2-3.2ubuntu0.4 to 5.38.2-3.2ubuntu0.6

Updates to packages available at build time only

  • Updated bison from version 2:3.8.2+dfsg-1build2 to 2:3.8.2+dfsg-1ubuntu0.24.04.1
  • Updated krb5-multidev from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libaom-dev from version 3.8.2-2ubuntu0.1 to 3.8.2-2ubuntu0.2
  • Updated libc-dev-bin from version 2.39-0ubuntu8.8 to 2.39-0ubuntu8.9
  • Updated libc6-dev from version 2.39-0ubuntu8.8 to 2.39-0ubuntu8.9
  • Updated libgssrpc4t64 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libkadm5clnt-mit12 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libkadm5srv-mit12 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libkdb5-10t64 from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libkrb5-dev from version 1.20.1-6ubuntu2.8 to 1.20.1-6ubuntu2.10
  • Updated libpython3.12-minimal from version 3.12.3-1ubuntu0.16 to 3.12.3-1ubuntu0.17
  • Updated libpython3.12-stdlib from version 3.12.3-1ubuntu0.16 to 3.12.3-1ubuntu0.17
  • Updated librabbitmq-dev from version 0.11.0-1ubuntu0.1 to 0.11.0-1ubuntu0.2
  • Updated linux-libc-dev from version 6.8.0-138.138 to 6.8.0-139.139
  • Updated python3.12 from version 3.12.3-1ubuntu0.16 to 3.12.3-1ubuntu0.17
  • Updated python3.12-minimal from version 3.12.3-1ubuntu0.16 to 3.12.3-1ubuntu0.17

Stack: heroku-26

  • Updated bubblewrap from version 0.11.1-1ubuntu0.1 to 0.11.1-1ubuntu0.3
  • Updated curl from version 8.18.0-1ubuntu2.4 to 8.18.0-1ubuntu2.5
  • Updated dirmngr from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated gnupg from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated gpg from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated gpg-agent from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated gpgconf from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated gpgsm from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated gpgv from version 2.4.8-4ubuntu3 to 2.4.8-4ubuntu3.1
  • Updated libaom3 from version 3.13.1-2 to 3.13.1-2ubuntu0.1
  • Updated libaudit-common from version 1:4.1.2-1build1 to 1:4.1.2-1ubuntu0.1
  • Updated libaudit1 from version 1:4.1.2-1build1 to 1:4.1.2-1ubuntu0.1
  • Updated libc-bin from version 2.43-2ubuntu2.3 to 2.43-2ubuntu2.4
  • Updated libc-gconv-modules-extra from version 2.43-2ubuntu2.3 to 2.43-2ubuntu2.4
  • Updated libc6 from version 2.43-2ubuntu2.3 to 2.43-2ubuntu2.4
  • Updated libcurl3t64-gnutls from version 8.18.0-1ubuntu2.4 to 8.18.0-1ubuntu2.5
  • Updated libcurl4t64 from version 8.18.0-1ubuntu2.4 to 8.18.0-1ubuntu2.5
  • Updated libheif-plugin-aomdec from version 1.21.2-3ubuntu0.4 to 1.21.2-3ubuntu0.5
  • Updated libheif-plugin-libde265 from version 1.21.2-3ubuntu0.4 to 1.21.2-3ubuntu0.5
  • Updated libheif1 from version 1.21.2-3ubuntu0.4 to 1.21.2-3ubuntu0.5
  • Updated libperl5.40 from version 5.40.1-7ubuntu0.1 to 5.40.1-7ubuntu0.3
  • Updated librabbitmq4 from version 0.15.0-1ubuntu0.26.04.1 to 0.15.0-1ubuntu0.26.04.2
  • Updated libsqlite3-0 from version 3.46.1-9ubuntu0.2 to 3.46.1-9ubuntu0.3
  • Updated libssh2-1t64 from version 1.11.1-1ubuntu0.26.04.3 to 1.11.1-1ubuntu0.26.04.4
  • Updated locales from version 2.43-2ubuntu2.3 to 2.43-2ubuntu2.4
  • Updated openssh-client from version 1:10.2p1-2ubuntu3.5 to 1:10.2p1-2ubuntu3.6
  • Updated openssh-server from version 1:10.2p1-2ubuntu3.5 to 1:10.2p1-2ubuntu3.6
  • Updated openssh-sftp-server from version 1:10.2p1-2ubuntu3.5 to 1:10.2p1-2ubuntu3.6
  • Updated perl from version 5.40.1-7ubuntu0.1 to 5.40.1-7ubuntu0.3
  • Updated perl-base from version 5.40.1-7ubuntu0.1 to 5.40.1-7ubuntu0.3
  • Updated perl-modules-5.40 from version 5.40.1-7ubuntu0.1 to 5.40.1-7ubuntu0.3

Updates to packages available at build time only

  • Updated bison from version 2:3.8.2+dfsg-1build4 to 2:3.8.2+dfsg-1ubuntu0.26.04.1
  • Updated libc-dev-bin from version 2.43-2ubuntu2.3 to 2.43-2ubuntu2.4
  • Updated libc6-dev from version 2.43-2ubuntu2.3 to 2.43-2ubuntu2.4
  • Updated libcurl4-openssl-dev from version 8.18.0-1ubuntu2.4 to 8.18.0-1ubuntu2.5
  • Updated libheif-dev from version 1.21.2-3ubuntu0.4 to 1.21.2-3ubuntu0.5
  • Updated libpython3.14-minimal from version 3.14.4-1ubuntu0.1 to 3.14.4-1ubuntu0.2
  • Updated libpython3.14-stdlib from version 3.14.4-1ubuntu0.1 to 3.14.4-1ubuntu0.2
  • Updated librabbitmq-dev from version 0.15.0-1ubuntu0.26.04.1 to 0.15.0-1ubuntu0.26.04.2
  • Updated libssh2-1-dev from version 1.11.1-1ubuntu0.26.04.3 to 1.11.1-1ubuntu0.26.04.4
  • Updated linux-libc-dev from version 7.0.0-30.30 to 7.0.0-31.31
  • Updated python3.14 from version 3.14.4-1ubuntu0.1 to 3.14.4-1ubuntu0.2
  • Updated python3.14-minimal from version 3.14.4-1ubuntu0.1 to 3.14.4-1ubuntu0.2