Add Deprecation Notice: removing Raspberry Pi 32-bit packages

data/deprecations/17-9-32bit-raspberry-pi-removal.yml

+- title: "Raspberry Pi 32-bit packages are deprecated"
+  announcement_milestone: "17.9"
+  removal_milestone: "18.0"
+  breaking_change: true
+  reporter: dustinmm80
+  stage: systems
+  issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/519113
+  impact: low
+  scope: instance
+  resolution_role: [Admin]
+  manual_task: true
+  tiers: [Free]
+  body: |  # (required) Don't change this line.
+    Starting from GitLab version 18.0, we will no longer provide 32-bit packages for Raspberry Pi.
+    You should use 64-bit Raspberry Pi OS and [install the `arm64` Debian packages](https://about.gitlab.com/install/#debian).
+    For information on backing up data on a 32-bit OS and restoring it to a 64-bit OS, see
+    [Upgrading operating systems for PostgreSQL](https://docs.gitlab.com/ee/administration/postgresql/upgrading_os.html).

doc/update/deprecations.md

@@ -1333,6 +1333,25 @@ To avoid breaking workflows that use the old name, you should stop using the `pr
 
 <div class="deprecation breaking-change" data-milestone="18.0">
 
+### Raspberry Pi 32-bit packages are deprecated
+
+<div class="deprecation-notes">
+
+- Announced in GitLab <span class="milestone">17.9</span>
+- Removal in GitLab <span class="milestone">18.0</span> ([breaking change](https://docs.gitlab.com/ee/update/terminology.html#breaking-change))
+- To discuss this change or learn more, see the [deprecation issue](https://gitlab.com/gitlab-org/gitlab/-/issues/519113).
+
+</div>
+
+Starting from GitLab version 18.0, we will no longer provide 32-bit packages for Raspberry Pi.
+You should use 64-bit Raspberry Pi OS and [install the `arm64` Debian packages](https://about.gitlab.com/install/#debian).
+For information on backing up data on a 32-bit OS and restoring it to a 64-bit OS, see
+[Upgrading operating systems for PostgreSQL](https://docs.gitlab.com/ee/administration/postgresql/upgrading_os.html).
+
+</div>
+
+<div class="deprecation breaking-change" data-milestone="18.0">
+
 ### Rate limits for common User, Project, and Group API endpoints
 
 <div class="deprecation-notes">