README.textile in ts-datetime-delta-1.0.3 vs README.textile in ts-datetime-delta-2.0.0

@@ -1,40 +1,61 @@
 h1. Datetime Deltas for Thinking Sphinx
 
 h2. Installation
 
-You'll need Thinking Sphinx 1.3.0 or later.
+You'll need Thinking Sphinx 1.3.0 or later (v3 is now supported since the 2.0.0 release of this gem).
 
 <pre><code>gem install ts-datetime-delta</code></pre>
 
 In your Gemfile, you can use it like so:
 
-<pre><code>gem 'ts-datetime-delta', '~> 1.0.2',
+<pre><code>gem 'ts-datetime-delta', '~> 2.0.0',
   :require => 'thinking_sphinx/deltas/datetime_delta'</code></pre>
 
 Or if you're still on Rails 2, then put this in your @environment.rb@ file with the rest of your gem dependencies:
 
 <pre><code>config.gem 'ts-datetime-delta',
   :lib     => 'thinking_sphinx/deltas/datetime_delta'
-  :version => '>= 1.0.0'</code></pre>
+  :version => '>= 2.0.0'</code></pre>
 
 No matter which version of Rails, you'll need to add the following line to the bottom of your @Rakefile@:
 
 <pre><code>require 'thinking_sphinx/deltas/datetime_delta/tasks'</code></pre>
 
 h2. Usage
 
-For the indexes you want to use this delta approach, make sure you set that up in their @define_index@ blocks.
+For the indexes you want to use this delta approach, make sure you set that up in your index definition. For Thinking Sphinx v3, that'll look like this:
 
+<pre><code>ThinkingSphinx::Index.define(:book,
+  :with  => :active_record,
+  :delta => ThinkingSphinx::Deltas::DatetimeDelta
+) do
+  # ...
+end</code></pre>
+
+But for Thinking Sphinx v1/v2, it belongs within your @define_index@ blocks:
+
 <pre><code>define_index do
   # ...
 
   set_property :delta => :datetime
 end</code></pre>
 
 If you want to use a column other than @updated_at@, you can specify it using the @:delta_column@ option. The same goes for the threshold, which defaults to one day.
 
+Again, Thinking Sphinx v3 expects these options outside the block:
+
+<pre><code>ThinkingSphinx::Index.define(:book,
+  :with          => :active_record,
+  :delta         => ThinkingSphinx::Deltas::DatetimeDelta,
+  :delta_options => {:threshold => 1.hour, :delta_column => :changed_at}
+) do
+  # ...
+end</code></pre>
+
+But Thinking Sphinx v1/v2 it goes within the @define_index@ block:
+
 <pre><code>set_property :delta => :datetime,
   :threshold    => 1.hour,
   :delta_column => :changed_at</code></pre>
 
 Then, while your Rails application is running, you'll need to run the delta indexing rake task regularly - as often as your threshold, allowing for some time for the indexing to actually happen.
@@ -51,9 +72,11 @@
 
 h2. Contributors
 
 * "W. Andrew Loe III":http://andrewloe.com/ - Environment variable for disabling merging.
 * "Kirill Maximov":http://kirblog.idetalk.com - Handling nil timestamp column values for toggled checks.
+* "Timo Virkkala":https://github.com/weetu - Thinking Sphinx v3 compatibility,fix for null timestamps.
+* "Cedric Maion":https://github.com/cmaion - Fix for keeping custom options persisted.
 
 h2. Copyright
 
-Copyright (c) 2009-2012 Pat Allan, and released under an MIT Licence.
+Copyright (c) 2009-2014 Pat Allan, and released under an MIT Licence.