Drop support for Ruby versions <2.5.

Author: alexreisner

Gemfile

@@ -24,7 +24,7 @@ group :test do
   gem 'webmock'
 
   platforms :ruby do
-    gem 'pg', '~> 1.1.4'
+    gem 'pg', '~> 1.5.9'
     gem 'mysql2', '~> 0.5.4'
   end
 

README.md

@@ -17,7 +17,7 @@ Key features:
 
 Compatibility:
 
-* Ruby versions: 2.1+, and JRuby.
+* Ruby versions: 2.5+ and JRuby.
 * Databases: MySQL, PostgreSQL, SQLite, and MongoDB.
 * Rails: 5.x, 6.x, and 7.x.
 * Works outside of Rails with the `json` (for MRI) or `json_pure` (for JRuby) gem.

geocoder.gemspec

@@ -5,7 +5,7 @@ require "geocoder/version"
 
 Gem::Specification.new do |s|
   s.name        = "geocoder"
-  s.required_ruby_version = '>= 2.0.0'
+  s.required_ruby_version = '>= 2.5.0'
   s.version     = Geocoder::VERSION
   s.platform    = Gem::Platform::RUBY
   s.authors     = ["Alex Reisner"]