https://git.ruby-lang.org/ruby.git/commit/?id=d65621b636

From d65621b636e1eb89696f13f4076e53d54710cb3f Mon Sep 17 00:00:00 2001
From: Samuel Williams <samuel.williams@o...>
Date: Tue, 9 Jul 2019 23:16:23 +1200
Subject: Specify minimum version.


diff --git a/lib/ipaddr.gemspec b/lib/ipaddr.gemspec
index 8284eb9..c794443 100644
--- a/lib/ipaddr.gemspec
+++ b/lib/ipaddr.gemspec
@@ -19,4 +19,6 @@ Both IPv4 and IPv6 are supported. https://github.com/ruby/ruby/blob/trunk/lib/ipaddr.gemspec#L19
 
   spec.files         = ["LICENSE.txt", "README.md", "ipaddr.gemspec", "lib/ipaddr.rb"]
   spec.require_paths = ["lib"]
+
+  spec.required_ruby_version = "~> 2.3"
 end
-- 
cgit v0.10.2


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