README.md in pubnub-3.7.1 vs README.md in pubnub-3.7.5

@@ -1,8 +1,14 @@
+## Celluloid Beta version
+We're happy to announce new ruby Pubnub client version is ready for public beta - you can find in celluloid branch in this repository.
+It uses celluloid instead of eventmachine and it's compatible with Ruby 2.0+, JRuby 1.7+, and Rubinius 2.0.
+Basic usage remains unchanged and it's backward compatible so you don't have to change your code!
+Give it a try and share with us your thoughts!
+
 # Please direct all Support Questions and Concerns to [e-mail]
 
-## PubNub Gem version 3.7.1
+## PubNub Gem version 3.7.5
 
 ##### YOU MUST HAVE A PUBNUB ACCOUNT TO USE THE API.
 ##### http://www.pubnub.com/account
 
 www.pubnub.com - PubNub Real-time Push Service in the Cloud.
@@ -15,14 +21,14 @@
 We've made the response format compatible across all operations. This may break existing parsing of whereNow, leave, state, and PAM responses. So if you are monitoring these operation responses, please be sure to modify your code accordingly.
 
 Examples of affected operations can be found [here](3.5_to_3.6_upgrade_notes.md).
 
 ### Upgrading from PubNub 3.3.x and Earlier
-PubNub 3.7.1 is NOT compatible with earlier than 3.4 versions of Pubnub Ruby Client.
+PubNub 3.7.3 is NOT compatible with earlier than 3.4 versions of Pubnub Ruby Client.
 
 ### Upgrading from PubNub 3.4 and higher versions
-PubNub 3.7.1 is compatible with 3.4 version.
+PubNub 3.7.3 is compatible with 3.4 version.
 
 ## Important Notice about Blocking vs Non-Blocking Calls
 
 #### Asynchronous vs Synchronous Requests
 Every operation is by default asynchronous. Asynchronous operations will not block your main thread and will be fired within a new thread.
@@ -317,90 +323,46 @@
 ```
 
 ### Channel Groups
 
 Channel grouping is new feature introduced in Pubnub 3.7. It allows to group
-channels into channel-groups and channel-groups into namespaces. For example you
-can add `weather` and `sport` channel to `news` channel group, and `news` and
-`local_ads` to `tv` namespace. Namespaces and channel groups are described as 
-`namespace:channel_group` e.g. `tv:news`. All channel-groups in namespace are 
-described as `namespace:` e.g. `tv:`. Non-namespaced channel groups are
-described as `non-namespaced-channel-group` eg. `global_alerts`.
+channels into channel-groups. For example you can add `weather` and `sport`
+channel to `news` channel group.
 
 All channel groups specific operations can be issued with
 `#channel_registration` method.
 
 #### Getting info
 
-##### Getting all namespaces
+##### Getting all channel groups
 
 ```ruby
-# Response envelope will hold info as hash in payload attribute. 
-pubnub.channel_registration(action: :list_namespaces, http_sync: true)
-```
-
-##### Getting all non-namespaced channel groups
-
-```ruby
 # Response envelope will hold info as hash in payload attribute.
 pubnub.channel_registration(action: :list_groups, http_sync: true)
 ```
 
-##### Getting all channel groups in given namespace
-
-```ruby
-# Response envelope will hold info as hash in payload attribute.
-pubnub.channel_registration(action: :get, group: 'foo:', http_sync: true)
-```
-
 ##### Getting all channels in channel group
 
 ```ruby
 # Response envelope will hold info as hash in payload attribute.
-pubnub.channel_registration(action: :get, group: 'foo:foo', http_sync: true)
+pubnub.channel_registration(action: :get, group: 'foo', http_sync: true)
 ```
 
 #### Adding
 
-##### Add channel to namespaced channel group
+##### Add channel to channel group
 
 ```ruby
-pubnub.channel_registration(action: :add, group: 'foo:new_group', channel: :bot, http_sync: true)
-```
-
-##### Add channel to non-namespaced channel group
-
-```ruby
 pubnub.channel_registration(action: :add, group: 'new_group', channel: :bot, http_sync: true)
 ```
 
-#### Removing
+##### Remove channel group
 
-##### Remove namespace and all channel groups
-
 ```ruby
-pubnub.channel_registration(action: :remove, group: 'foo:', http_sync: true)
-```
-
-##### Remove namespaced channel group
-
-```ruby
-pubnub.channel_registration(action: :remove, group: 'foo:cg', http_sync: true)
-```
-
-##### Remove non-namespaced channel group
-
-```ruby
 pubnub.channel_registration(action: :remove, group: 'cg', http_sync: true)
 ```
 
-##### Remove channel from namespaced channel group
-
-```ruby
-pubnub.channel_registration(action: :remove, group: 'foo:cg', channel: :to_remove, http_sync: true)
-```
-
-##### Remove channel from non-namespaced channel group
+##### Remove channel from channel group
 
 ```ruby
 pubnub.channel_registration(action: :remove, group: 'cg', channel: :to_remove, http_sync: true)
 ```