Update Alpine to 3.21.2 version

Author: tyranron

CHANGELOG.md

@@ -6,6 +6,18 @@ All user visible changes to this project will be documented in this file. This p
 
 
 
+## [1.0.52-r4] · 2025-01-09
+[1.0.52-r4]: /../../tree/1.0.52-r4
+
+[Diff](/../../compare/1.0.52-r3...1.0.52-r4)
+
+### Security updated
+
+- [Alpine Linux] 3.21.2: <https://github.com/docker-library/official-images/commit/824cefde693b820f783266fda449588ca583a1b0>
+
+
+
+
 ## [1.0.52-r3] · 2025-01-08
 [1.0.52-r3]: /../../tree/1.0.52-r3
 

Dockerfile

@@ -3,7 +3,7 @@ FROM alpine:3.21
 
 ARG pure_ftpd_ver=1.0.52
 ARG s6_overlay_ver=3.2.0.2
-ARG build_rev=3
+ARG build_rev=4
 
 
 # Build and install Pure-FTPd

README.md

@@ -17,7 +17,7 @@ Pure-FTPd Docker image
 
 ## Supported tags and respective `Dockerfile` links
 
-- [`1.0.52-r3`, `1.0.52`, `1.0`, `1`, `latest`][201]
+- [`1.0.52-r4`, `1.0.52`, `1.0`, `1`, `latest`][201]