From a14464e85931e64cf7ad026b1bb8ebe5ca467955 Mon Sep 17 00:00:00 2001
From: Paul Mucur <paul.mucur@raspberrypi.com>
Date: Thu, 15 Jan 2026 08:15:31 +0000
Subject: [PATCH] fix: add explicit dependency on logger for Ruby 4

Ruby 4.0 moved "logger" from being a default gem to a bundled one (see
https://www.ruby-lang.org/en/news/2025/12/25/ruby-4-0-0-released/#stdlib-updates
and https://stdgems.org/logger/) so it now needs to be added as an
explicit dependency.

Without this, it will raise the following warning:

    warning: logger used to be loaded from the standard library, but is
    not part of the default gems since Ruby 4.0.0.
    You can add logger to your Gemfile or gemspec to fix this error.
---
 CHANGELOG.md                    | 6 ++++++
 sentry-ruby/sentry-ruby.gemspec | 1 +
 2 files changed, 7 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 62448291a..eeec8f149 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## Unreleased
+
+### Bug Fixes
+
+- Add explicit dependency on logger gem to fix Ruby 4.0 warning ([#2837](https://github.com/getsentry/sentry-ruby/pull/2837))
+
 ## 6.3.0
 
 ### Features
diff --git a/sentry-ruby/sentry-ruby.gemspec b/sentry-ruby/sentry-ruby.gemspec
index e7346b7f1..5834b8e29 100644
--- a/sentry-ruby/sentry-ruby.gemspec
+++ b/sentry-ruby/sentry-ruby.gemspec
@@ -30,4 +30,5 @@ Gem::Specification.new do |spec|
 
   spec.add_dependency "concurrent-ruby", "~> 1.0", ">= 1.0.2"
   spec.add_dependency "bigdecimal"
+  spec.add_dependency "logger"
 end