Heroku-22 and Heroku-24 stacks updated
Change effective on 07 July 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
libxslt1.1
from version1.1.34-4ubuntu0.22.04.3
to1.1.34-4ubuntu0.22.04.4
- Updated
linux-libc-dev
from version5.15.0-142.152
to5.15.0-143.153
Updates to packages available at build time only
- Updated
libarchive13
from version3.6.0-1ubuntu1.4
to3.6.0-1ubuntu1.5
- Updated
libxslt1-dev
from version1.1.34-4ubuntu0.22.04.3
to1.1.34-4ubuntu0.22.04.4
- Updated
python3-urllib3
from version1.26.5-1~exp1ubuntu0.2
to1.26.5-1~exp1ubuntu0.3
Stack: heroku-24
- Updated
bsdutils
from version1:2.39.3-9ubuntu6.2
to1:2.39.3-9ubuntu6.3
- Updated
gzip
from version1.12-1ubuntu3
to1.12-1ubuntu3.1
- Updated
libarchive13t64
from version3.7.2-2ubuntu0.4
to3.7.2-2ubuntu0.5
- Updated
libblkid1
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
libmount1
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
libsmartcols1
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
libuuid1
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
mount
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
util-linux
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
Updates to packages available at build time only
- Updated
libblkid-dev
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
libmount-dev
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3
- Updated
linux-libc-dev
from version6.8.0-62.65
to6.8.0-63.66
- Updated
uuid-dev
from version2.39.3-9ubuntu6.2
to2.39.3-9ubuntu6.3