Elixir 1.13 is the minimum required version

.gitlab-ci.yml

@@ -2,7 +2,7 @@ image: git.pleroma.social:5050/pleroma/pleroma/ci-base
 
 variables: &global_variables
   # Only used for the release
-  ELIXIR_VER: 1.12.3
+  ELIXIR_VER: 1.13.4
   POSTGRES_DB: pleroma_test
   POSTGRES_USER: postgres
   POSTGRES_PASSWORD: postgres

Dockerfile

@@ -1,7 +1,7 @@
 ARG ELIXIR_IMG=hexpm/elixir
-ARG ELIXIR_VER=1.12.3
-ARG ERLANG_VER=24.2.1
-ARG ALPINE_VER=3.17.0
+ARG ELIXIR_VER=1.13.4
+ARG ERLANG_VER=24.3.4.15
+ARG ALPINE_VER=3.17.5
 
 FROM ${ELIXIR_IMG}:${ELIXIR_VER}-erlang-${ERLANG_VER}-alpine-${ALPINE_VER} as build
 

changelog.d/bump-elixir.change

@@ -0,0 +1 @@
+Elixir 1.13 is the minimum required version.

mix.exs

@@ -5,7 +5,7 @@ def project do
     [
       app: :pleroma,
       version: version("2.6.51"),
-      elixir: "~> 1.11",
+      elixir: "~> 1.13",
       elixirc_paths: elixirc_paths(Mix.env()),
       compilers: Mix.compilers(),
       elixirc_options: [warnings_as_errors: warnings_as_errors()],