Raise minimum required ruby version

The service discovery plugin helper use Array#prepend, it means that the ruby version must be 2.5 or later precisely. fluentd.work/lib/fluent/plugin_helper/service_discovery.rb:71:in `service_discovery_configure': undefined method `prepend' for []:Array (NoMethodError) from /work/fluent/fluentd/fluentd.work/lib/fluent/plugin/out_ NOTE: It works with Ruby 2.5 or later, but 2.x had already reached EOL. At least, it may better to set verified version with CI. Signed-off-by: Kentaro Hayashi <[email protected]>
fluent · Sep 6, 2023 · 4b2b2dd · 4b2b2dd
1 parent d5685ad
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diff --git a/README.md b/README.md
@@ -29,7 +29,7 @@ Fluentd: Open-Source Log Collector
 
 ### Prerequisites
 
-- Ruby 2.4 or later
+- Ruby 2.7 or later
 - git
 
 `git` should be in `PATH`. On Windows, you can use `Github for Windows` and `GitShell` for easy setup.

diff --git a/fluentd.gemspec b/fluentd.gemspec
@@ -16,7 +16,7 @@ Gem::Specification.new do |gem|
   gem.require_paths = ["lib"]
   gem.license = "Apache-2.0"
 
-  gem.required_ruby_version = '>= 2.4'
+  gem.required_ruby_version = '>= 2.7'
 
   gem.add_runtime_dependency("bundler")
   gem.add_runtime_dependency("msgpack", [">= 1.3.1", "< 2.0.0"])