diff --git a/.travis.yml b/.travis.yml
index 4447af5..7c282d6 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,5 @@
 language: ruby
 rvm:
-  - 1.8.7
   - 1.9.2
   - 1.9.3
   - 2.0.0
diff --git a/README.textile b/README.textile
index 1a56440..b7523e8 100644
--- a/README.textile
+++ b/README.textile
@@ -67,6 +67,12 @@ FastImage.new("http://stephensykes.com/images/ExifOrientation3.jpg").orientation
 
 h2. Installation
 
+h4. Required Ruby version
+
+FastImage version 2.0.0 and above work with Ruby 1.9.2 and above.
+
+FastImage version 1.9.0 was the last version that supported Ruby 1.8.7.
+
 h4. Gem
 
 bc. gem install fastimage
diff --git a/fastimage.gemspec b/fastimage.gemspec
index bfd1f35..e63191c 100644
--- a/fastimage.gemspec
+++ b/fastimage.gemspec
@@ -1,10 +1,10 @@
 Gem::Specification.new do |s|
   s.name = %q{fastimage}
-  s.version = "1.9.0"
+  s.version = "2.0.0"
 
-  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.required_ruby_version = '>= 1.9.2'
   s.authors = ["Stephen Sykes"]
-  s.date = %q{2016-02-13}
+  s.date = %q{2016-03-24}
   s.description = %q{FastImage finds the size or type of an image given its uri by fetching as little as needed.}
   s.email = %q{sdsykes@gmail.com}
   s.extra_rdoc_files = [
@@ -14,7 +14,6 @@ Gem::Specification.new do |s|
     "MIT-LICENSE",
     "README.textile",
     "lib/fastimage.rb",
-    "lib/fastimage/fbr.rb",
   ]
   s.homepage = %q{http://github.com/sdsykes/fastimage}
   s.rdoc_options = ["--charset=UTF-8"]
diff --git a/lib/fastimage.rb b/lib/fastimage.rb
index 1096dfa..aa65911 100644
--- a/lib/fastimage.rb
+++ b/lib/fastimage.rb
@@ -57,7 +57,6 @@
 
 require 'net/https'
 require 'addressable/uri'
-require 'fastimage/fbr.rb'
 require 'delegate'
 require 'pathname'
 require 'zlib'
diff --git a/lib/fastimage/fbr.rb b/lib/fastimage/fbr.rb
deleted file mode 100644
index 12d5673..0000000
--- a/lib/fastimage/fbr.rb
+++ /dev/null
@@ -1,66 +0,0 @@
-# Poor Man's Fiber (API compatible Thread based Fiber implementation for Ruby 1.8)
-# (c) 2008 Aman Gupta (tmm1)
-
-unless defined? Fiber
-  require 'thread'
-
-  class FiberError < StandardError; # :nodoc:
-  end
-
-  class Fiber # :nodoc:
-    def initialize
-      raise ArgumentError, 'new Fiber requires a block' unless block_given?
-
-      @yield = Queue.new
-      @resume = Queue.new
-
-      @thread = Thread.new{ @yield.push [yield(*@resume.pop)] }
-      @thread.abort_on_exception = true
-      @thread[:fiber] = self
-    end
-    attr_reader :thread
-
-    def resume *args
-      raise FiberError, 'dead fiber called' unless @thread.alive?
-      @resume.push(args)
-      result = @yield.pop
-      result.size > 1 ? result : result.first
-    end
-
-    def yield *args
-      @yield.push(args)
-      result = @resume.pop
-      result.size > 1 ? result : result.first
-    end
-
-    def self.yield *args
-      if fiber = Thread.current[:fiber]
-        fiber.yield(*args)
-      else
-        raise FiberError, 'not inside a fiber'
-      end
-    end
-
-    def self.current
-      if Thread.current == Thread.main
-        return Thread.main[:fiber] ||= RootFiber.new
-      end
-
-      Thread.current[:fiber] or raise FiberError, 'not inside a fiber'
-    end
-
-    def inspect
-      "#<#{self.class}:0x#{self.object_id.to_s(16)}>"
-    end
-  end
-
-  class RootFiber < Fiber # :nodoc:
-    def initialize
-      # XXX: what is a root fiber anyway?
-    end
-
-    def self.yield *args
-      raise FiberError, "can't yield from root fiber"
-    end
-  end
-end