diff --git a/HISTORY b/HISTORY
index ee2679b..1ffc45a 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,3 +1,6 @@
+=== 4.5.0 2024-05-16
+- Support for warnings in Events API
+
 === 4.4.0 2023-10-05
 - Score percentiles in Score API
 
diff --git a/README.md b/README.md
index e1aca84..274ffa1 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,4 @@
 # sift-ruby
-[![CircleCI](https://circleci.com/gh/SiftScience/sift-ruby.svg?style=svg)](https://circleci.com/gh/SiftScience/sift-ruby)
 
 The official Ruby bindings for the latest version (v205) of the [Sift API](https://sift.com/developers/docs/java/apis-overview).
 
@@ -39,8 +38,22 @@ client = Sift::Client.new(api_key: '<your_api_key_here>', account_id: '<your_acc
 
 ```
 
-### Sending a transaction event
+### Sending an event
+Send event to Sift.
+To learn more about the Events API visit our [developer docs](https://developers.sift.com/docs/ruby/events-api/overview).
 
+
+**Optional Params**
+- `return_score`: `:true` or `:false`
+- `return_action`: `:true` or `:false`
+- `return_workflow_status`: `:true` or `:false`
+- `return_route_info`: `:true` or `:false`
+- `force_workflow_run`: `:true` or `:false`
+- `include_score_percentiles`: `:true` or `:false`
+- `warnings`: `:true` or `:false`
+- `abuse_types`: `["payment_abuse", "content_abuse", "content_abuse", "account_abuse", "legacy", "account_takeover"]`
+
+**Example:**
 ```ruby
 event = "$transaction"
 
diff --git a/lib/sift/client.rb b/lib/sift/client.rb
index 11ba637..f7a5837 100644
--- a/lib/sift/client.rb
+++ b/lib/sift/client.rb
@@ -205,6 +205,9 @@ def user_agent
     #   :include_score_percentiles::
     #     include_score_percentiles(optional) : Whether to add new parameter in the query parameter.
     #
+    #   :warnings::
+    #     warnings(optional) : Whether to add list of warnings (if any) to response.
+    #
     # ==== Returns:
     #
     # In the case of a network error (timeout, broken connection, etc.),
@@ -223,6 +226,7 @@ def track(event, properties = {}, opts = {})
       force_workflow_run = opts[:force_workflow_run]
       abuse_types = opts[:abuse_types]
       include_score_percentiles = opts[:include_score_percentiles]
+      warnings = opts[:warnings]
 
       raise("event must be a non-empty string") if (!event.is_a? String) || event.empty?
       raise("properties cannot be empty") if properties.empty?
@@ -235,8 +239,12 @@ def track(event, properties = {}, opts = {})
       query["return_route_info"] = "true" if return_route_info
       query["force_workflow_run"] = "true" if force_workflow_run
       query["abuse_types"] = abuse_types.join(",") if abuse_types
-      if include_score_percentiles == "true"
-        query["fields"] =  "SCORE_PERCENTILES"
+
+      if include_score_percentiles == "true" || warnings == "true"
+        fields = []
+        fields << "SCORE_PERCENTILES" if include_score_percentiles == "true"
+        fields << "WARNINGS" if warnings == "true"
+        query["fields"] = fields.join(",")
       end
 
       options = {
diff --git a/lib/sift/version.rb b/lib/sift/version.rb
index 05319d6..6675b86 100644
--- a/lib/sift/version.rb
+++ b/lib/sift/version.rb
@@ -1,4 +1,4 @@
 module Sift
-  VERSION = "4.4.0"
+  VERSION = "4.5.0"
   API_VERSION = "205"
 end
diff --git a/spec/unit/client_spec.rb b/spec/unit/client_spec.rb
index 5dfc8fc..f1c9d3b 100644
--- a/spec/unit/client_spec.rb
+++ b/spec/unit/client_spec.rb
@@ -110,6 +110,15 @@ def action_response_json
     }
   end
 
+  def warnings
+    {
+      :count => 1,
+      :items => [{
+        :message => 'Invalid currency'
+      }]
+    }
+  end
+
   def percentile_response_json
     {
       :user_id => 'billy_jones_301',
@@ -689,4 +698,25 @@ def fully_qualified_api_endpoint
     expect(response.body["scores"]["payment_abuse"]["score"]).to eq(0.78)
   end
 
+  it "Successfully submits a v205 event with WARNINGS" do
+    response_json =
+    { :status => 0, :error_message => "OK", :warnings => warnings}
+    stub_request(:post, "https://api.siftscience.com/v205/events?fields=WARNINGS").
+      with { | request|
+        parsed_body = JSON.parse(request.body)
+        expect(parsed_body).to include("$api_key" => "overridden")
+      }.to_return(:status => 200, :body => MultiJson.dump(response_json), :headers => {})
+
+    api_key = "foobar"
+    event = "$transaction"
+    properties = valid_transaction_properties
+
+    response = Sift::Client.new(:api_key => api_key, :version => "205")
+              .track(event, properties, :api_key => "overridden",:warnings => "true")
+    expect(response.ok?).to eq(true)
+    expect(response.api_status).to eq(0)
+    expect(response.api_error_message).to eq("OK")
+    expect(response.body["warnings"]["count"]).to eq(1)
+    expect(response.body["warnings"]["items"][0]["message"]).to eq("Invalid currency")
+  end
 end
diff --git a/test_integration_app/events_api/test_events_api.rb b/test_integration_app/events_api/test_events_api.rb
index c0759ac..299b39d 100644
--- a/test_integration_app/events_api/test_events_api.rb
+++ b/test_integration_app/events_api/test_events_api.rb
@@ -122,7 +122,7 @@ def transaction()
             }
         }
         
-        return @@client.track("$transaction", properties)
+        return @@client.track("$transaction", properties, :warnings => 'true')
     end
     
     def create_order()