diff --git a/README.md b/README.md
index 09ef9279..5cf5acc3 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ intercom = Intercom::Client.new(token: 'my_token')
 
 ```ruby
 # With a versioned app:
-intercom = Intercom::Client.new(token: 'my_token', api_version: '2.0')
+intercom = Intercom::Client.new(token: 'my_token', api_version: '2.1')
 ```
 
 If you are building a third party application you can get your access_tokens by [setting-up-oauth](https://developers.intercom.io/page/setting-up-oauth) for Intercom.
@@ -61,6 +61,9 @@ Resources this API supports:
     https://api.intercom.io/counts
     https://api.intercom.io/subscriptions
     https://api.intercom.io/jobs
+    https://api.intercom.io/articles
+    https://api.intercom.io/help_center/collections
+    https://api.intercom.io/help_center/sections
 
 
 ### Examples
@@ -525,6 +528,103 @@ intercom.subscriptions.delete(subscription)
 intercom.subscriptions.all
 ```
 
+#### Articles
+```ruby
+# Create an article
+article = intercom.articles.create(title: "New Article", author_id: "123456")
+
+# Create an article with translations
+article = intercom.articles.create(title: "New Article",
+                                   author_id: "123456",
+                                   translated_content: {fr: {title: "Nouvel Article"}, es: {title: "Articulo nuevo"}})
+
+# Fetch an article
+intercom.articles.find(id: "123456")
+
+# List all articles
+articles = intercom.articles.all
+articles.each { |article| p article.title }
+
+# Update an article
+article.title = "Article Updated!"
+intercom.articles.save(article)
+
+# Update an article's existing translation
+article.translated_content.en.title = "English Updated!"
+intercom.articles.save(article)
+
+# Update an article by adding a new translation
+article.translated_content.fr = {title: "French Added!"}
+intercom.articles.save(article)
+
+# Delete an article
+intercom.articles.delete(article)
+```
+
+#### Collections
+```ruby
+# Create a collection
+collection = intercom.collections.create(name: "New Collection")
+
+# Create a collection with translations
+collection = intercom.collections.create(name: "New Collection",
+                                         translated_content: {fr: {name: "Nouvelle collection"}, es: {name: "Nuevo colección"}})
+
+# Fetch a collection
+intercom.collections.find(id: "123456")
+
+# List all collections
+collections = intercom.collections.all
+collections.each { |collection| p collection.name }
+
+# Update a collection
+collection.name = "Collection updated!"
+intercom.collections.save(collection)
+
+# Update a collection's existing translation
+collection.translated_content.en.name = "English Updated!"
+intercom.collections.save(collection)
+
+# Update a collection by adding a new translation
+collection.translated_content.fr = {name: "French Added", description: "French description"}
+intercom.collections.save(collection)
+
+# Delete an collection
+intercom.collections.delete(collection)
+```
+
+#### Sections
+```ruby
+# Create a section
+section = intercom.sections.create(name: "New Section", parent_id: "123456")
+
+# Create a section with translations
+section = intercom.sections.create(name: "New Section",
+                                   translated_content: {fr: {name: "Nouvelle section"}, es: {name: "Nuevo sección"}})
+
+# Fetch a section
+intercom.sections.find(id: "123456")
+
+# List all sections
+sections = intercom.sections.all
+sections.each { |section| p section.name }
+
+# Update a section
+section.name = "Section updated!"
+intercom.sections.save(section)
+
+# Update a section's existing translation
+section.translated_content.en.name = "English Updated!"
+intercom.collections.save(section)
+
+# Update a section by adding a new translation
+section.translated_content.fr = {name: "French Added"}
+intercom.collections.save(section)
+
+# Delete an section
+intercom.sections.delete(section)
+```
+
 ### Errors
 
 There are different styles for error handling - some people prefer exceptions; some prefer nil and check; some prefer error objects/codes. Balancing these preferences alongside our wish to provide an idiomatic gem has brought us to use the current mechanism of throwing specific exceptions. Our approach in the client is to propagate errors and signal our failure loudly so that erroneous data does not get propagated through our customers' systems - in other words, if you see a `Intercom::ServiceUnavailableError` you know where the problem is.
diff --git a/changes.txt b/changes.txt
index 1073568c..03d56f0e 100644
--- a/changes.txt
+++ b/changes.txt
@@ -1,3 +1,10 @@
+4.1.0
+- Added support for new Articles API.
+- Added support for new Collections API.
+- Added support for new Sections API.
+- Added support to equate two resources.
+- Fixed issue for dirty tracking nested typed objects.
+
 4.0.1
 - Fixed bug with nested resources.
 - Support for add/remove contact on conversation object.