Heroku-22 and Heroku-24 stacks updated

Change effective on 26 August 2025

We updated the heroku-22 and heroku-24 stacks to pick up security fixes in upstream packages. The new base images for each stack 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 include these changes. We automatically restart any running dynos as we roll out the new base images for each stack. For Cedar-generation apps, each time a dyno starts, the slug applies on top of the most recent base image. For Fir-generation apps, the built image gets rebased on top of the most recent base image.

If your app uses Heroku’s container stack (most don’t), 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 packages available in each stack’s base image.

Changelog of packages

Stack: heroku-22

• Updated cpp-11 from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated gcc-11 from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated gcc-11-base from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated gcc-12-base from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libasan6 from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated libatomic1 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libcc1-0 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libgcc-11-dev from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated libgcc-s1 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libglib2.0-0 from version 2.72.4-0ubuntu2.5 to 2.72.4-0ubuntu2.6
• Updated libgomp1 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libitm1 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated liblsan0 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libmysqlclient21 from version 8.0.42-0ubuntu0.22.04.2 to 8.0.43-0ubuntu0.22.04.1
• Updated libpoppler-glib8 from version 22.02.0-2ubuntu0.9 to 22.02.0-2ubuntu0.10
• Updated libpoppler118 from version 22.02.0-2ubuntu0.9 to 22.02.0-2ubuntu0.10
• Updated libpq5 from version 17.5-1.pgdg22.04+1 to 17.6-1.pgdg22.04+1
• Updated libpython3.10-minimal from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11
• Updated libpython3.10-stdlib from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11
• Updated libquadmath0 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libstdc++6 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libtiff5 from version 4.3.0-6ubuntu0.10 to 4.3.0-6ubuntu0.11
• Updated libtsan0 from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated libubsan1 from version 12.3.0-1ubuntu1~22.04 to 12.3.0-1ubuntu1~22.04.2
• Updated libxml2 from version 2.9.13+dfsg-1ubuntu0.7 to 2.9.13+dfsg-1ubuntu0.8
• Updated linux-libc-dev from version 5.15.0-151.161 to 5.15.0-152.162
• Updated poppler-utils from version 22.02.0-2ubuntu0.9 to 22.02.0-2ubuntu0.10
• Updated postgresql-client-17 from version 17.5-1.pgdg22.04+1 to 17.6-1.pgdg22.04+1
• Updated python3.10 from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11
• Updated python3.10-minimal from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11

Updates to packages available at build time only

• Updated g++-11 from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated libglib2.0-bin from version 2.72.4-0ubuntu2.5 to 2.72.4-0ubuntu2.6
• Updated libglib2.0-data from version 2.72.4-0ubuntu2.5 to 2.72.4-0ubuntu2.6
• Updated libglib2.0-dev from version 2.72.4-0ubuntu2.5 to 2.72.4-0ubuntu2.6
• Updated libglib2.0-dev-bin from version 2.72.4-0ubuntu2.5 to 2.72.4-0ubuntu2.6
• Updated libmysqlclient-dev from version 8.0.42-0ubuntu0.22.04.2 to 8.0.43-0ubuntu0.22.04.1
• Updated libpq-dev from version 17.5-1.pgdg22.04+1 to 17.6-1.pgdg22.04+1
• Updated libpython3.10 from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11
• Updated libpython3.10-dev from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11
• Updated libstdc++-11-dev from version 11.4.0-1ubuntu1~22.04 to 11.4.0-1ubuntu1~22.04.2
• Updated libtiff-dev from version 4.3.0-6ubuntu0.10 to 4.3.0-6ubuntu0.11
• Updated libtiffxx5 from version 4.3.0-6ubuntu0.10 to 4.3.0-6ubuntu0.11
• Updated libxml2-dev from version 2.9.13+dfsg-1ubuntu0.7 to 2.9.13+dfsg-1ubuntu0.8
• Updated python3.10-dev from version 3.10.12-1~22.04.10 to 3.10.12-1~22.04.11

Stack: heroku-24

• Updated libmysqlclient21 from version 8.0.42-0ubuntu0.24.04.2 to 8.0.43-0ubuntu0.24.04.1
• Updated libpoppler-glib8t64 from version 24.02.0-1ubuntu9.5 to 24.02.0-1ubuntu9.6
• Updated libpoppler134 from version 24.02.0-1ubuntu9.5 to 24.02.0-1ubuntu9.6
• Updated libpq5 from version 17.5-1.pgdg24.04+1 to 17.6-1.pgdg24.04+1
• Updated libtiff6 from version 4.5.1+git230720-4ubuntu2.2 to 4.5.1+git230720-4ubuntu2.3
• Updated libxml2 from version 2.9.14+dfsg-1.3ubuntu3.3 to 2.9.14+dfsg-1.3ubuntu3.4
• Updated poppler-utils from version 24.02.0-1ubuntu9.5 to 24.02.0-1ubuntu9.6
• Updated postgresql-client-17 from version 17.5-1.pgdg24.04+1 to 17.6-1.pgdg24.04+1

Updates to packages available at build time only

• Updated libmysqlclient-dev from version 8.0.42-0ubuntu0.24.04.2 to 8.0.43-0ubuntu0.24.04.1
• Updated libpq-dev from version 17.5-1.pgdg24.04+1 to 17.6-1.pgdg24.04+1
• Updated libpython3.12-minimal from version 3.12.3-1ubuntu0.7 to 3.12.3-1ubuntu0.8
• Updated libpython3.12-stdlib from version 3.12.3-1ubuntu0.7 to 3.12.3-1ubuntu0.8
• Updated libtiff-dev from version 4.5.1+git230720-4ubuntu2.2 to 4.5.1+git230720-4ubuntu2.3
• Updated libtiffxx6 from version 4.5.1+git230720-4ubuntu2.2 to 4.5.1+git230720-4ubuntu2.3
• Updated libxml2-dev from version 2.9.14+dfsg-1.3ubuntu3.3 to 2.9.14+dfsg-1.3ubuntu3.4
• Updated linux-libc-dev from version 6.8.0-71.71 to 6.8.0-78.78
• Updated python3.12 from version 3.12.3-1ubuntu0.7 to 3.12.3-1ubuntu0.8
• Updated python3.12-minimal from version 3.12.3-1ubuntu0.7 to 3.12.3-1ubuntu0.8