diff --git a/Gemfile b/Gemfile
index c0d710a9..c5777000 100644
--- a/Gemfile
+++ b/Gemfile
@@ -20,7 +20,8 @@ gemspec
 group :test do
   gem "minitest", "~> 5.0"
   gem "rspec"
-  gem 'codecov'
+  gem 'simplecov'
+  # gem 'codecov'
   gem 'webmock'
   gem 'byebug'
 end
diff --git a/README.md b/README.md
index dffb709c..20a7791d 100644
--- a/README.md
+++ b/README.md
@@ -452,7 +452,9 @@ imagekitio.upload_file(
                 value: 'w-100'
             }
         ]
-    }
+    },
+    checks: "'request.folder' : '/'" # To run server side checks before uploading files. Notice the quotes around file.size and 1mb.
+    is_published: true
 )
 
 ```
@@ -479,6 +481,7 @@ imagekitio.list_files(
 )
 ```
 **Get File Details**
+
 Accepts the file ID and fetches the details as per the [API documentation here](https://docs.imagekit.io/api-reference/media-api/get-file-details)
 
 ```ruby
@@ -488,6 +491,7 @@ imagekitio.get_file_details(
 ```
 
 **Get File Metadata**
+
 Accepts the file ID and fetches the metadata as per the [API documentation here](https://docs.imagekit.io/api-reference/metadata-api/get-image-metadata-for-uploaded-media-files)
 ```ruby
 imagekit.get_file_metadata(
@@ -496,6 +500,7 @@ imagekit.get_file_metadata(
 ```
 
 **Get File Metadata from remote url**
+
 Accepts the remote file url and fetches the metadata as per the [API documentation here](https://docs.imagekit.io/api-reference/metadata-api/get-image-metadata-from-remote-url)
 
 ```ruby
@@ -505,6 +510,7 @@ imagekit.get_remote_file_url_metadata(
 ```
 
 **Update File Details**
+
 Update parameters associated with the file as per the [API documentation here](https://docs.imagekit.io/api-reference/media-api/update-file-details).
 The first argument to the `update_field_details` method is the file ID, and a second argument is an object with the
 parameters to be updated.
@@ -517,6 +523,21 @@ imagekitio.update_file_details(
 )
 ```
 
+
+**Update publish status**
+
+If `publish` is included in the update options, no other parameters are allowed. If any are present, an error will be returned: `Your request cannot contain any other parameters when publish is present`.
+
+```ruby
+imagekitio.update_file_details(
+    file_id: '598821f949c0a938d57563bd',
+    publish:{
+      isPublished: true,
+      includeFileVersions: true
+    }
+)
+```
+
 **Copy File**
 
 Copy file from one path to another path using the source file path and the destination path as per the [API documentation here](https://docs.imagekit.io/api-reference/media-api/copy-file)
diff --git a/lib/imagekitio/constants/file.rb b/lib/imagekitio/constants/file.rb
index 498e0d96..3af374dc 100644
--- a/lib/imagekitio/constants/file.rb
+++ b/lib/imagekitio/constants/file.rb
@@ -5,7 +5,7 @@ module File
 
       VALID_FILE_DETAIL_OPTIONS = ["fileID"]
 
-      VALID_UPLOAD_OPTIONS = %w[file file_name use_unique_file_name tags folder is_private_file custom_coordinates response_fields extensions webhook_url overwrite_file overwrite_AI_tags overwrite_custom_metadata custom_metadata mime overwrite_tags content_type transformation ]
+      VALID_UPLOAD_OPTIONS = %w[file file_name use_unique_file_name tags folder is_private_file custom_coordinates response_fields extensions webhook_url overwrite_file overwrite_AI_tags overwrite_custom_metadata custom_metadata mime overwrite_tags content_type transformation checks is_published]
     end
   end
 end
diff --git a/lib/imagekitio/sdk/version.rb b/lib/imagekitio/sdk/version.rb
index c188581d..a9dac6ed 100644
--- a/lib/imagekitio/sdk/version.rb
+++ b/lib/imagekitio/sdk/version.rb
@@ -1,5 +1,5 @@
 module ImageKitIo
   module Sdk
-    VERSION = '3.0.0'
+    VERSION = '3.1.0'
   end
 end
diff --git a/test/imagekit/api_service/file_test.rb b/test/imagekit/api_service/file_test.rb
index a2aa8cf4..8707faf3 100644
--- a/test/imagekit/api_service/file_test.rb
+++ b/test/imagekit/api_service/file_test.rb
@@ -253,6 +253,57 @@
       expect(upload[:status_code]).to eq(200)
 
     end
+
+    it "test_upload_with_checks" do
+      request_obj = double
+      allow(ImageKitIo::Request)
+        .to receive(:new)
+              .with(private_key, public_key, url_endpoint)
+              .and_return(request_obj)
+
+      allow(request_obj)
+        .to receive(:create_headers)
+              .and_return({})
+      @ac={}
+      allow(request_obj)
+        .to receive(:request){|method,url,headers,payload| @ac={method: method, url: url, headers: headers, payload:payload}}
+              .and_return({status_code: 200})
+
+      SUT = file_api_service.new(request_obj)
+
+      upload = SUT.upload(file: "./fake_file.jpg", file_name: "my_file_name", checks: '"file.size" < "1mb"')
+
+      expect(@ac[:payload]['checks']).to eq('"file.size" < "1mb"')
+      
+      expect(upload[:status_code]).to eq(200)
+
+    end
+    
+    it "test_upload_with_is_published" do
+      request_obj = double
+      allow(ImageKitIo::Request)
+        .to receive(:new)
+              .with(private_key, public_key, url_endpoint)
+              .and_return(request_obj)
+
+      allow(request_obj)
+        .to receive(:create_headers)
+              .and_return({})
+      @ac={}
+      allow(request_obj)
+        .to receive(:request){|method,url,headers,payload| @ac={method: method, url: url, headers: headers, payload:payload}}
+              .and_return({status_code: 200})
+
+      SUT = file_api_service.new(request_obj)
+
+      upload = SUT.upload(file: "./fake_file.jpg", file_name: "my_file_name", is_published: true )
+
+      expect(@ac[:payload]['isPublished']).to eq("true")
+      
+      expect(upload[:status_code]).to eq(200)
+
+    end
+
   end
 
   describe 'FileListTest' do
@@ -787,6 +838,31 @@
       expect(resp[:body]).to eq(options)
     end
 
+    it "test_update_file_publication_status" do
+      options = { publish: { isPublished: true, includeFileVersions: true }}
+      request_obj = double
+      allow(ImageKitIo::Request)
+        .to receive(:new)
+              .with(private_key, public_key, url_endpoint)
+              .and_return(request_obj)
+
+      allow(request_obj)
+        .to receive(:create_headers)
+              .and_return({})
+
+      allow(request_obj)
+        .to receive(:request){|method,url,headers,payload| @ac={method: method, url: url, headers: headers, payload:payload}}
+              .and_return({status_code: 200, body: options})
+
+      SUT = file_api_service.new(request_obj)
+      resp = SUT.update_details(file_id: "file_id", **options)
+
+      expect(JSON.parse(@ac[:payload])['publish']['isPublished']).to eq(options[:publish][:isPublished])
+      expect(JSON.parse(@ac[:payload])['publish']['isPublished']).to eq(options[:publish][:includeFileVersions])
+      expect(resp[:status_code]).to eq(200)
+      expect(resp[:body]).to eq(options)
+    end
+
     it "test_update_file_details_fails_missing_arguments" do
       options = { tags: 'custom tag' }
       request_obj = double
diff --git a/test/imagekit/spec_helper.rb b/test/imagekit/spec_helper.rb
index dc770008..433b4162 100644
--- a/test/imagekit/spec_helper.rb
+++ b/test/imagekit/spec_helper.rb
@@ -1,8 +1,8 @@
 require 'simplecov'
 SimpleCov.start 'rails'
 
-require 'codecov'
-SimpleCov.formatter = SimpleCov::Formatter::Codecov
+# require 'codecov'
+# SimpleCov.formatter = SimpleCov::Formatter::Codecov
 
 require 'base64'
 require 'rspec'