Upgrade to ruby 3.3

.github/workflows/ci.yml

@@ -15,8 +15,8 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - '3.0'
-          - '3.1'
+          - '3.2'
+          - '3.3'
         db:
           - mysql
           - postgresql

.ruby-version

@@ -1 +1 @@
-3.1
+3.3

Changelog.md

@@ -34,9 +34,9 @@ With this release, we switched from `unicorn` to `puma` to run our applications.
 
 We use yarn to install the frontend dependencies now, so you need to have that installed. See here for how to install it: https://yarnpkg.com/en/docs/install
 
-## Suggested Ruby version: 3.1
+## Suggested Ruby version: 3.3
 
-We recommend setting up new pods using Ruby 3.1, and updating existing pods to this version as well. Ruby 2.7 is EOL and no longer supported.
+We recommend setting up new pods using Ruby 3.3, and updating existing pods to this version as well. Ruby 2.7 is EOL and no longer supported.
 
 ## Refactor
 * Add bootstrapping for using ECMAScript 6 with automatic transpiling for compatibility [#7581](https://github.com/diaspora/diaspora/pull/7581) [#8397](https://github.com/diaspora/diaspora/pull/8397)

Gemfile.lock

@@ -913,4 +913,4 @@ DEPENDENCIES
   yajl-ruby (= 1.4.3)
 
 BUNDLED WITH
-   2.3.27
+   2.5.9

config/boot.rb

@@ -6,3 +6,11 @@ require "bundler/setup" # Set up gems listed in the Gemfile.
 
 # Load configuration early
 require_relative "load_config"
+
+# Ruby 3.2 removed the `exists?` alias from `File`, but at least the `logging-rails` gem still uses it.
+# This is only a workaround, and we need a different long-term solution. It looks like the `logging-rails` gem
+# is not maintained anymore, so we maybe need to find a replacement. But since this is the only thing preventing
+# us from upgrading to Ruby >= 3.2, we can just create our own alias for now.
+class << File
+  alias exists? exist?
+end

docker/develop/Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/amd64/ruby:3.1-slim-bullseye
+FROM docker.io/amd64/ruby:3.3-slim-bullseye
 
 RUN DEBIAN_FRONTEND=noninteractive \
     apt-get update && \