diff --git a/changelog/changes/2023-10-17-sdk-mantle-kola-sysext.md b/changelog/changes/2023-10-17-sdk-mantle-kola-sysext.md
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-- SDK: bump Mantle / Kola container image version to include torcx removal / sysext tests ([Mantle#466](https://github.com/flatcar/mantle/pull/466), [Mantle#465](https://github.com/flatcar/mantle/pull/465))
diff --git a/changelog/changes/2023-10-17-update-engine-torcx-removal.md b/changelog/changes/2023-10-17-update-engine-torcx-removal.md
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-- update_engine: remove torcx sanity checks because the OS image removed torcx ([update_engine#30](https://github.com/flatcar/update_engine/pull/30))
diff --git a/changelog/changes/2023-10-19-torcx-removal.md b/changelog/changes/2023-10-19-torcx-removal.md
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+- **torcx was replaced by systemd-sysext in the OS image**. Learn more about sysext and how to customise OS images [here](https://www.flatcar.org/docs/latest/provisioning/sysext/).
+  - Torcx has been removed entirely; if you use torcx to extend the Flatcar base OS image, please refer to our [conversion script](https://www.flatcar.org/docs/latest/provisioning/sysext/#torcx-deprecation) and to the sysext documentation mentioned above for migrating.
+  - Consequently, `update_engine` will not perform torcx sanity checks post-update anymore.
+  - Relevant changes: [scripts#1216](https://github.com/flatcar/scripts/pull/1216), [update_engine#30](https://github.com/flatcar/update_engine/pull/30), [Mantle#466](https://github.com/flatcar/mantle/pull/466), [Mantle#465](https://github.com/flatcar/mantle/pull/465).