diff --git a/.editorconfig b/.editorconfig
old mode 100755
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diff --git a/.github/CONTRIBUTING.md b/.github/CONTRIBUTING.md
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diff --git a/.github/FUNDING.yml b/.github/FUNDING.yml
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diff --git a/.github/ISSUE_TEMPLATE/config.yml b/.github/ISSUE_TEMPLATE/config.yml
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diff --git a/.github/ISSUE_TEMPLATE/issue.bug.yml b/.github/ISSUE_TEMPLATE/issue.bug.yml
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diff --git a/.github/ISSUE_TEMPLATE/issue.feature.yml b/.github/ISSUE_TEMPLATE/issue.feature.yml
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diff --git a/.github/workflows/call_issue_pr_tracker.yml b/.github/workflows/call_issue_pr_tracker.yml
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diff --git a/.github/workflows/call_issues_cron.yml b/.github/workflows/call_issues_cron.yml
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diff --git a/.github/workflows/external_trigger.yml b/.github/workflows/external_trigger.yml
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diff --git a/.github/workflows/external_trigger_scheduler.yml b/.github/workflows/external_trigger_scheduler.yml
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diff --git a/.github/workflows/greetings.yml b/.github/workflows/greetings.yml
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diff --git a/.github/workflows/package_trigger_scheduler.yml b/.github/workflows/package_trigger_scheduler.yml
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diff --git a/.github/workflows/permissions.yml b/.github/workflows/permissions.yml
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diff --git a/Dockerfile b/Dockerfile
index 646e7d6..c8c2871 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/baseimage-alpine-nginx:3.20
+FROM ghcr.io/linuxserver/baseimage-alpine-nginx:3.21
 
 # set version label
 ARG BUILD_DATE
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 39b02b0..6052df0 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1
 
-FROM ghcr.io/linuxserver/baseimage-alpine-nginx:arm64v8-3.20
+FROM ghcr.io/linuxserver/baseimage-alpine-nginx:arm64v8-3.21
 
 # set version label
 ARG BUILD_DATE
diff --git a/LICENSE b/LICENSE
old mode 100755
new mode 100644
diff --git a/README.md b/README.md
index 46ced86..eb53b15 100644
--- a/README.md
+++ b/README.md
@@ -350,6 +350,7 @@ Once registered you can define the dockerfile to use with `-f Dockerfile.aarch64
 
 ## Versions
 
+* **12.02.25:** - Rebase to Alpine 3.21.
 * **09.01.25:** - Fix uploading large files. Existing users should update their nginx confs.
 * **09.07.24:** - Add `previous` tag for n-1 releases.
 * **24.06.24:** - Rebase to Alpine 3.20. Existing users should update their nginx confs to avoid http2 deprecation warnings.
diff --git a/readme-vars.yml b/readme-vars.yml
index c4b0e9e..a2d097e 100644
--- a/readme-vars.yml
+++ b/readme-vars.yml
@@ -30,6 +30,8 @@ param_volumes:
 param_usage_include_ports: true
 param_ports:
   - {external_port: "443", internal_port: "443", port_desc: "WebUI"}
+readonly_supported: false
+nonroot_supported: false
 # application setup block
 app_setup_block_enabled: true
 app_setup_block: |
@@ -146,6 +148,7 @@ init_diagram: |
   "nextcloud:latest" <- Base Images
 # changelog
 changelogs:
+  - {date: "12.02.25:", desc: "Rebase to Alpine 3.21."}
   - {date: "09.01.25:", desc: "Fix uploading large files. Existing users should update their nginx confs."}
   - {date: "09.07.24:", desc: "Add `previous` tag for n-1 releases."}
   - {date: "24.06.24:", desc: "Rebase to Alpine 3.20. Existing users should update their nginx confs to avoid http2 deprecation warnings."}