Drop Alpine 3.16

.github/workflows/container-auto-update.yml

@@ -26,7 +26,6 @@ jobs:
         BUILD_REF:
           - refs/heads/main
         BASE_IMAGE:
-          - docker.io/alpine:3.16
           - docker.io/alpine:3.17
           - docker.io/alpine:3.18
           - docker.io/alpine:3.19

.github/workflows/container-publish.yml

@@ -24,7 +24,6 @@ jobs:
     strategy:
       matrix:
         BASE_IMAGE:
-          - docker.io/alpine:3.16
           - docker.io/alpine:3.17
           - docker.io/alpine:3.18
           - docker.io/alpine:3.19

README.md

@@ -3,7 +3,7 @@ Alpine Linux
 
 [`alpine`](https://ghcr.io/sgsgermany/alpine) is [@SGSGermany](https://github.com/SGSGermany)'s base image for containers based on [Alpine Linux](https://alpinelinux.org/). This image is built *daily* at 21:20 UTC on top of the [official Docker image](https://hub.docker.com/_/alpine) using [GitHub Actions](https://github.com/SGSGermany/alpine/actions/workflows/container-publish.yml).
 
-Rebuilds are triggered only if Alpine publishes a new patch release, or if one of Alpine's Mini Root Filesystem packages were updated. Currently we create images for **Alpine 3.19**, **Alpine 3.18**,  **Alpine 3.17**, and **Alpine 3.16**. Please note that we might add or drop branches at any time.
+Rebuilds are triggered only if Alpine publishes a new patch release, or if one of Alpine's Mini Root Filesystem packages were updated. Currently we create images for **Alpine 3.19**, **Alpine 3.18**, and **Alpine 3.17**. Please note that we might add or drop branches at any time.
 
 All images are tagged with their full Alpine version string, build date and build job number (e.g. `v3.15.4-20190618.1658821493.1`). The latest build of an Alpine release is additionally tagged without the build information (e.g. `v3.15.4`). If an image represents the latest version of an Alpine release branch, it is additionally tagged without the patch version (e.g. `v3.15`), and without the minor version (e.g. `v3`); both without and with build information (e.g. `v3.15-20190618.1658821493.1` and `v3-20190618.1658821493.1`). The latest build of the latest Alpine version is furthermore tagged with `latest`.