diff --git a/Gemfile.lock b/Gemfile.lock
index a2ae6c33..0127f4a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    xero-ruby (12.1.0)
+    xero-ruby (12.2.0)
       faraday (>= 2.0, < 3.0)
       json (~> 2.1, >= 2.1.0)
       json-jwt (~> 1.16, >= 1.16.3)
diff --git a/docs/accounting/Contact.md b/docs/accounting/Contact.md
index 40a79147..040aea7f 100644
--- a/docs/accounting/Contact.md
+++ b/docs/accounting/Contact.md
@@ -17,6 +17,7 @@ Name | Type | Description | Notes
 **contact_persons** | [**Array&lt;ContactPerson&gt;**](ContactPerson.md) | See contact persons | [optional] 
 **bank_account_details** | **String** | Bank account number of contact | [optional] 
 **tax_number** | **String** | Tax number of contact – this is also known as the ABN (Australia), GST Number (New Zealand), VAT Number (UK) or Tax ID Number (US and global) in the Xero UI depending on which regionalized version of Xero you are using (max length &#x3D; 50) | [optional] 
+**tax_number_type** | **String** | Identifier of the regional type of tax number, such as US, UK, or other regional tax identifiers | [optional] 
 **accounts_receivable_tax_type** | **String** | The tax type from TaxRates | [optional] 
 **accounts_payable_tax_type** | **String** | The tax type from TaxRates | [optional] 
 **addresses** | [**Array&lt;Address&gt;**](Address.md) | Store certain address types for a contact – see address types | [optional] 
@@ -65,6 +66,7 @@ instance = XeroRuby::Accounting::Contact.new(contact_id: null,
                                  contact_persons: null,
                                  bank_account_details: null,
                                  tax_number: null,
+                                 tax_number_type: null,
                                  accounts_receivable_tax_type: null,
                                  accounts_payable_tax_type: null,
                                  addresses: null,
diff --git a/docs/accounting/index.html b/docs/accounting/index.html
index a1197b47..d54e23fa 100644
--- a/docs/accounting/index.html
+++ b/docs/accounting/index.html
@@ -2104,6 +2104,11 @@
       "type" : "string",
       "description" : "Tax number of contact – this is also known as the ABN (Australia), GST Number (New Zealand), VAT Number (UK) or Tax ID Number (US and global) in the Xero UI depending on which regionalized version of Xero you are using (max length = 50)"
     },
+    "TaxNumberType" : {
+      "type" : "string",
+      "description" : "Identifier of the regional type of tax number, such as US, UK, or other regional tax identifiers",
+      "enum" : [ "SSN", "EIN", "ITIN", "ATIN" ]
+    },
     "AccountsReceivableTaxType" : {
       "type" : "string",
       "description" : "The tax type from TaxRates"
@@ -6339,7 +6344,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Accounting"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Accounting"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="Accounting"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="Accounting"><a href="#api-Accounting">Methods</a></li>
               <li data-group="Accounting" data-name="createAccount" class="">
                 <a href="#api-Accounting-createAccount">createAccount</a>
@@ -22974,7 +22979,7 @@ <h2>Scopes</h2>
                     
                     <tr>
                       <td>accounting.budgets.read</td>
-                      <td></td>
+                      <td>Grant read-only access to read budgets</td>
                     </tr>
                     
                   </table>
@@ -23142,7 +23147,7 @@ <h2>Scopes</h2>
                     
                     <tr>
                       <td>accounting.budgets.read</td>
-                      <td></td>
+                      <td>Grant read-only access to read budgets</td>
                     </tr>
                     
                   </table>
diff --git a/docs/app_store/index.html b/docs/app_store/index.html
index 67b4758f..04dca181 100644
--- a/docs/app_store/index.html
+++ b/docs/app_store/index.html
@@ -1241,7 +1241,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="AppStore"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="AppStore"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="AppStore"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="AppStore"><a href="#api-AppStore">Methods</a></li>
               <li data-group="AppStore" data-name="getSubscription" class="">
                 <a href="#api-AppStore-getSubscription">getSubscription</a>
diff --git a/docs/assets/BookDepreciationDetail.md b/docs/assets/BookDepreciationDetail.md
index 586b2c79..5e8e9a0c 100644
--- a/docs/assets/BookDepreciationDetail.md
+++ b/docs/assets/BookDepreciationDetail.md
@@ -11,6 +11,11 @@ Name | Type | Description | Notes
 **residual_value** | **BigDecimal** | The value of the asset remaining when you&#39;ve fully depreciated it. | [optional] 
 **prior_accum_depreciation_amount** | **BigDecimal** | All depreciation prior to the current financial year. | [optional] 
 **current_accum_depreciation_amount** | **BigDecimal** | All depreciation occurring in the current financial year. | [optional] 
+**business_use_capital_gain** | **BigDecimal** | (New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its business use. | [optional] 
+**business_use_current_gain_loss** | **BigDecimal** | (New Zealand Orgs Only) Represents the gain or loss from the disposal of the business use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s business use. | [optional] 
+**private_use_capital_gain** | **BigDecimal** | (New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its private (non-business) use. | [optional] 
+**private_use_current_gain_loss** | **BigDecimal** | (New Zealand Orgs Only) Represents the gain or loss from the disposal of the private use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s private use. | [optional] 
+**initial_deduction_percentage** | **Float** | (New Zealand Orgs Only) The Investment Boost deduction percentage. | [optional] 
 
 ## Code Sample
 
@@ -23,7 +28,12 @@ instance = XeroRuby::Assets::BookDepreciationDetail.new(current_capital_gain: 5.
                                  cost_limit: 9000.0,
                                  residual_value: 10000.0,
                                  prior_accum_depreciation_amount: 0.45,
-                                 current_accum_depreciation_amount: 5.0)
+                                 current_accum_depreciation_amount: 5.0,
+                                 business_use_capital_gain: null,
+                                 business_use_current_gain_loss: null,
+                                 private_use_capital_gain: null,
+                                 private_use_current_gain_loss: null,
+                                 initial_deduction_percentage: null)
 ```
 
 
diff --git a/docs/assets/index.html b/docs/assets/index.html
index f8ad16ad..a98053f0 100644
--- a/docs/assets/index.html
+++ b/docs/assets/index.html
@@ -1077,6 +1077,35 @@
       "format" : "double",
       "example" : 5.0,
       "x-is-money" : true
+    },
+    "businessUseCapitalGain" : {
+      "type" : "number",
+      "description" : "(New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its business use.",
+      "format" : "decimal",
+      "x-is-money" : true
+    },
+    "businessUseCurrentGainLoss" : {
+      "type" : "number",
+      "description" : "(New Zealand Orgs Only) Represents the gain or loss from the disposal of the business use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s business use.",
+      "format" : "decimal",
+      "x-is-money" : true
+    },
+    "privateUseCapitalGain" : {
+      "type" : "number",
+      "description" : "(New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its private (non-business) use.",
+      "format" : "decimal",
+      "x-is-money" : true
+    },
+    "privateUseCurrentGainLoss" : {
+      "type" : "number",
+      "description" : "(New Zealand Orgs Only) Represents the gain or loss from the disposal of the private use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s private use.",
+      "format" : "decimal",
+      "x-is-money" : true
+    },
+    "initialDeductionPercentage" : {
+      "type" : "number",
+      "description" : "(New Zealand Orgs Only) The Investment Boost deduction percentage.",
+      "format" : "decimal"
     }
   },
   "description" : ""
@@ -1390,7 +1419,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Asset"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Asset"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="Asset"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="Asset"><a href="#api-Asset">Methods</a></li>
               <li data-group="Asset" data-name="createAsset" class="">
                 <a href="#api-Asset-createAsset">createAsset</a>
diff --git a/docs/files/index.html b/docs/files/index.html
index 3a227103..d17ae4e6 100644
--- a/docs/files/index.html
+++ b/docs/files/index.html
@@ -1170,7 +1170,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Files"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Files"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="Files"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="Files"><a href="#api-Files">Methods</a></li>
               <li data-group="Files" data-name="createFileAssociation" class="">
                 <a href="#api-Files-createFileAssociation">createFileAssociation</a>
diff --git a/docs/finance/index.html b/docs/finance/index.html
index 451bad97..4d0909d9 100644
--- a/docs/finance/index.html
+++ b/docs/finance/index.html
@@ -2716,7 +2716,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Finance"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Finance"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="Finance"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="Finance"><a href="#api-Finance">Methods</a></li>
               <li data-group="Finance" data-name="getAccountingActivityAccountUsage" class="">
                 <a href="#api-Finance-getAccountingActivityAccountUsage">getAccountingActivityAccountUsage</a>
diff --git a/docs/payroll_au/index.html b/docs/payroll_au/index.html
index eb4877e8..2b7342f6 100644
--- a/docs/payroll_au/index.html
+++ b/docs/payroll_au/index.html
@@ -3412,7 +3412,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="PayrollAu"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="PayrollAu"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="PayrollAu"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="PayrollAu"><a href="#api-PayrollAu">Methods</a></li>
               <li data-group="PayrollAu" data-name="approveLeaveApplication" class="">
                 <a href="#api-PayrollAu-approveLeaveApplication">approveLeaveApplication</a>
diff --git a/docs/payroll_nz/Employee.md b/docs/payroll_nz/Employee.md
index a8d096cd..0337e01a 100644
--- a/docs/payroll_nz/Employee.md
+++ b/docs/payroll_nz/Employee.md
@@ -31,19 +31,19 @@ instance = XeroRuby::PayrollNz::Employee.new(employee_id: d90457c4-f1be-4f2e-b4e
                                  title: Mrs,
                                  first_name: Karen,
                                  last_name: Jones,
-                                 date_of_birth: Wed Jan 02 00:00:00 GMT 2019,
+                                 date_of_birth: Wed Jan 02 00:00:00 UTC 2019,
                                  address: null,
                                  email: developer@me.com,
                                  gender: F,
                                  phone_number: 415-555-1212,
-                                 start_date: Sun Jan 19 00:00:00 GMT 2020,
-                                 end_date: Sun Jan 19 00:00:00 GMT 2020,
+                                 start_date: Sun Jan 19 00:00:00 UTC 2020,
+                                 end_date: Sun Jan 19 00:00:00 UTC 2020,
                                  payroll_calendar_id: null,
                                  updated_date_utc: null,
                                  created_date_utc: null,
                                  job_title: General Manager,
                                  engagement_type: Permanent,
-                                 fixed_term_end_date: Sun Jan 19 00:00:00 GMT 2020)
+                                 fixed_term_end_date: Sun Jan 19 00:00:00 UTC 2020)
 ```
 
 
diff --git a/docs/payroll_nz/EmployeeLeaveSetup.md b/docs/payroll_nz/EmployeeLeaveSetup.md
index 6d9e7e5c..ee68dad3 100644
--- a/docs/payroll_nz/EmployeeLeaveSetup.md
+++ b/docs/payroll_nz/EmployeeLeaveSetup.md
@@ -32,8 +32,8 @@ instance = XeroRuby::PayrollNz::EmployeeLeaveSetup.new(include_holiday_pay: fals
                                  sick_leave_maximum_to_accrue: 200.5,
                                  sick_leave_opening_balance: 10.5,
                                  sick_leave_schedule_of_accrual: OnAnniversaryDate,
-                                 sick_leave_anniversary_date: Sun Jan 19 00:00:00 GMT 2020,
-                                 annual_leave_anniversary_date: Sun Jan 19 00:00:00 GMT 2020)
+                                 sick_leave_anniversary_date: Sun Jan 19 00:00:00 UTC 2020,
+                                 annual_leave_anniversary_date: Sun Jan 19 00:00:00 UTC 2020)
 ```
 
 
diff --git a/docs/payroll_nz/EmployeeLeaveType.md b/docs/payroll_nz/EmployeeLeaveType.md
index b8678364..0b1756a7 100644
--- a/docs/payroll_nz/EmployeeLeaveType.md
+++ b/docs/payroll_nz/EmployeeLeaveType.md
@@ -37,7 +37,7 @@ instance = XeroRuby::PayrollNz::EmployeeLeaveType.new(leave_type_id: null,
                                  include_holiday_pay_every_pay: null,
                                  show_annual_leave_in_advance: null,
                                  annual_leave_total_amount_paid: null,
-                                 schedule_of_accrual_date: Sun Jan 19 00:00:00 GMT 2020)
+                                 schedule_of_accrual_date: Sun Jan 19 00:00:00 UTC 2020)
 ```
 
 
diff --git a/docs/payroll_nz/Employment.md b/docs/payroll_nz/Employment.md
index 6b49de9e..dd863ad1 100644
--- a/docs/payroll_nz/Employment.md
+++ b/docs/payroll_nz/Employment.md
@@ -19,7 +19,7 @@ instance = XeroRuby::PayrollNz::Employment.new(payroll_calendar_id: null,
                                  pay_run_calendar_id: null,
                                  start_date: null,
                                  engagement_type: Permanent,
-                                 fixed_term_end_date: Sun Jan 19 00:00:00 GMT 2020)
+                                 fixed_term_end_date: Sun Jan 19 00:00:00 UTC 2020)
 ```
 
 
diff --git a/docs/payroll_nz/PayrollNzApi.md b/docs/payroll_nz/PayrollNzApi.md
index 6ca28365..f874841c 100644
--- a/docs/payroll_nz/PayrollNzApi.md
+++ b/docs/payroll_nz/PayrollNzApi.md
@@ -73,7 +73,6 @@ Method | HTTP request | Description
 [**update_employee_leave**](PayrollNzApi.md#update_employee_leave) | **PUT** /Employees/{EmployeeID}/Leave/{LeaveID} | Updates leave records for a specific employee
 [**update_employee_salary_and_wage**](PayrollNzApi.md#update_employee_salary_and_wage) | **PUT** /Employees/{EmployeeID}/SalaryAndWages/{SalaryAndWagesID} | Updates an employee&#39;s salary and wages record
 [**update_employee_tax**](PayrollNzApi.md#update_employee_tax) | **POST** /Employees/{EmployeeID}/Tax | Updates the tax records for a specific employee
-[**update_pay_run**](PayrollNzApi.md#update_pay_run) | **PUT** /PayRuns/{PayRunID} | Updates a pay run
 [**update_pay_slip_line_items**](PayrollNzApi.md#update_pay_slip_line_items) | **PUT** /PaySlips/{PaySlipID} | Creates an employee pay slip
 [**update_timesheet_line**](PayrollNzApi.md#update_timesheet_line) | **PUT** /Timesheets/{TimesheetID}/Lines/{TimesheetLineID} | Updates a timesheet line for a specific timesheet
 
@@ -4750,77 +4749,6 @@ Name | Type | Description  | Notes
 - **Accept**: application/json
 
 
-## update_pay_run
-
-> PayRunObject update_pay_run(xero_tenant_id, pay_run_id, pay_run, opts)
-
-Updates a pay run
-
-### Example
-
-```ruby
-# load the gem
-require 'xero-ruby'
-
-creds = {
-  client_id: ENV['CLIENT_ID'],
-  client_secret: ENV['CLIENT_SECRET'],
-  redirect_uri: ENV['REDIRECT_URI'],
-  scopes: ENV['SCOPES']
-}
-xero_client = XeroRuby::ApiClient.new(credentials: creds)
-
-token_set = fetch_valid_token_set(user) # example
-
-xero_client.refresh_token_set(token_set)
-
-# You need to namespace your api method call to one of the following api sets
-# [:accounting_api, :assets_api, :projects_api, :files_api, :payroll_au_api, :payroll_nz_api, :payroll_uk_api, :app_store_api]
-
-api_instance = xero_client.<api_set>
-
-
-
-xero_tenant_id = 'xero_tenant_id_example' # String | Xero identifier for Tenant
-pay_run_id = 'pay_run_id_example' # String | Identifier for the pay run
-pay_run = {"paymentDate":"2019-07-01"} # PayRun | 
-opts = {
-  idempotency_key: 'KEY_VALUE' # String | This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-}
-
-begin
-  #Updates a pay run
-  result = api_instance.update_pay_run(xero_tenant_id, pay_run_id, pay_run, opts)
-  p result
-rescue XeroRuby::PayrollNz::ApiError => e
-  puts "Exception when calling PayrollNzApi->update_pay_run: #{e}"
-end
-```
-
-### Parameters
-
-
-Name | Type | Description  | Notes
-------------- | ------------- | ------------- | -------------
- **xero_tenant_id** | **String**| Xero identifier for Tenant | 
- **pay_run_id** | [**String**](.md)| Identifier for the pay run | 
- **pay_run** | [**PayRun**](PayRun.md)|  | 
- **idempotency_key** | **String**| This allows you to safely retry requests without the risk of duplicate processing. 128 character max. | [optional] 
-
-### Return type
-
-[**PayRunObject**](PayRunObject.md)
-
-### Authorization
-
-[OAuth2](../README.md#OAuth2)
-
-### HTTP request headers
-
-- **Content-Type**: application/json
-- **Accept**: application/json
-
-
 ## update_pay_slip_line_items
 
 > PaySlipObject update_pay_slip_line_items(xero_tenant_id, pay_slip_id, pay_slip, opts)
diff --git a/docs/payroll_nz/index.html b/docs/payroll_nz/index.html
index 326a5588..6ed4331c 100644
--- a/docs/payroll_nz/index.html
+++ b/docs/payroll_nz/index.html
@@ -4087,7 +4087,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="PayrollNz"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="PayrollNz"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="PayrollNz"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="PayrollNz"><a href="#api-PayrollNz">Methods</a></li>
               <li data-group="PayrollNz" data-name="approveTimesheet" class="">
                 <a href="#api-PayrollNz-approveTimesheet">approveTimesheet</a>
@@ -4296,9 +4296,6 @@
               <li data-group="PayrollNz" data-name="updateEmployeeTax" class="">
                 <a href="#api-PayrollNz-updateEmployeeTax">updateEmployeeTax</a>
               </li>
-              <li data-group="PayrollNz" data-name="updatePayRun" class="">
-                <a href="#api-PayrollNz-updatePayRun">updatePayRun</a>
-              </li>
               <li data-group="PayrollNz" data-name="updatePaySlipLineItems" class="">
                 <a href="#api-PayrollNz-updatePaySlipLineItems">updatePaySlipLineItems</a>
               </li>
@@ -14299,186 +14296,6 @@ <h2>Parameters</h2>
     }
   },
   "required" : true
-}
-    </script>
-                  </table>
-                </article>
-              </div>
-              <hr>
-              <div id="api-PayrollNz-updatePayRun">
-                <article id="api-PayrollNz-updatePayRun-0" data-group="User" data-name="updatePayRun" data-version="0">
-                  <div class="pull-left">
-                    <h1>updatePayRun</h1>
-                    <p>Updates a pay run</p>
-                  </div>
-                  <div class="pull-right"></div>
-                  <div class="clearfix"></div>
-                  <p></p>
-                  <p class="marked"></p>
-                  <p></p>
-                  <br />
-                  <pre class="prettyprint language-html prettyprinted" data-type="put"><code><span class="pln">/PayRuns/{PayRunID}</span></code></pre>
-                  <p>
-                  <h3>Usage and SDK Samples</h3>
-                  </p>
-                  <ul class="nav nav-tabs nav-tabs-examples">
-                    <!-- *****REPLACE***** comment out the other languages <li> -->
-                    <li class=""><a href="#examples-PayrollNz-updatePayRun-0-ruby">Ruby</a></li>
-                  </ul>
-                  <div class="tab-content">
-                    <!-- *****REPLACE***** comment out the other languages tab-pane -->
-                    <div class="tab-pane" id="examples-PayrollNz-updatePayRun-0-ruby">
-                      <pre class="prettyprint"><code class="language-ruby">xero_client.set_token_set(user.token_set)
-
-xero_tenant_id = 'xeroTenantId_example'
-pay_run_id = '38400000-8cf0-11bd-b23e-10b96e4ef00d'
-idempotency_key = 'KEY_VALUE'
-start_date = 'YYYY-MM-DD'
-payment_date = 'YYYY-MM-DD'
-
-pay_run_calendar = { 
-  calendar_type:  XeroRuby::PayrollNz::calendar_type::WEEKLY,
-  period_start_date:  start_date,
-  payment_date:  payment_date
-}  
-
-begin
-  response = xero_client.accounting_api.update_pay_run(xero_tenant_id, pay_run_id, payRun, idempotency_key)
-  return response
-rescue XeroRuby::ApiError => e
-  puts "Exception when calling update_pay_run: #{e}"
-end
-</code></pre>
-                    </div>
-                  </div>
-                  <h2>Scopes</h2>
-                  <table>
-                    
-                    <tr>
-                      <td>payroll.payruns</td>
-                      <td>Grant read-write access to payroll payruns</td>
-                    </tr>
-                    
-                  </table>
-                  <h2>Parameters</h2>
-                  <div class="methodsubtabletitle">Path parameters</div>
-                  <table id="methodsubtable">
-                    <tr>
-                      <th width="150px">Name</th>
-                      <th>Description</th>
-                    </tr>
-                    <tr><td style="width:150px;">PayRunID<span style="color:red;">*</span></td>
-<td>
-
-
-    <div id="d2e199_updatePayRun_payRunID">
-        <div class="json-schema-view">
-            <div class="primitive">
-                <span class="type">
-                    UUID
-                </span>
-                    <span class="format">
-                        (uuid)
-                    </span>
-
-                    <div class="inner description marked">
-Identifier for the pay run
-                    </div>
-            </div>
-                <div class="inner required">
-                    Required
-                </div>
-        </div>
-    </div>
-</td>
-</tr>
-
-                  </table>
-                  <div class="methodsubtabletitle">Header parameters</div>
-                  <table id="methodsubtable">
-                    <tr>
-                      <th width="150px">Name</th>
-                      <th>Description</th>
-                    </tr>
-                    <tr><td style="width:150px;">Xero-Tenant-Id<span style="color:red;">*</span></td>
-<td>
-
-
-    <div id="d2e199_updatePayRun_xeroTenantId">
-        <div class="json-schema-view">
-            <div class="primitive">
-                <span class="type">
-                    String
-                </span>
-
-                    <div class="inner description marked">
-Xero identifier for Tenant
-                    </div>
-            </div>
-                <div class="inner required">
-                    Required
-                </div>
-        </div>
-    </div>
-</td>
-</tr>
-
-                    <tr><td style="width:150px;">Idempotency-Key</td>
-<td>
-
-
-    <div id="d2e199_updatePayRun_idempotencyKey">
-        <div class="json-schema-view">
-            <div class="primitive">
-                <span class="type">
-                    String
-                </span>
-
-                    <div class="inner description marked">
-This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-                    </div>
-            </div>
-        </div>
-    </div>
-</td>
-</tr>
-
-                  </table>
-                  <div class="methodsubtabletitle">Body parameters</div>
-                  <table id="methodsubtable">
-                    <tr>
-                      <th width="150px">Name</th>
-                      <th>Description</th>
-                    </tr>
-                    <tr>
-  <td style="width:150px;">payRun <span style="color:red;">*</span></td>
-  <td>
-    <div class="json-schema-view">
-      <div class="primitive">
-        <span class="type">
-        PayRun
-        </span>
-        <div class="inner description marked">
-          
-        </div>
-      </div>
-      <div class="inner required">
-        Required
-      </div>
-    </div>
-    <script type="application/ld+json">
-      {
-  "content" : {
-    "application/json" : {
-      "schema" : {
-        "$ref" : "#/components/schemas/PayRun"
-      },
-      "example" : {
-        "paymentDate" : "2019-07-01"
-      }
-    }
-  },
-  "required" : true
 }
     </script>
                   </table>
diff --git a/docs/payroll_uk/Employee.md b/docs/payroll_uk/Employee.md
index 9f055071..99eb2907 100644
--- a/docs/payroll_uk/Employee.md
+++ b/docs/payroll_uk/Employee.md
@@ -32,13 +32,13 @@ instance = XeroRuby::PayrollUk::Employee.new(employee_id: d90457c4-f1be-4f2e-b4e
                                  title: Mrs,
                                  first_name: Karen,
                                  last_name: Jones,
-                                 date_of_birth: Wed Jan 02 00:00:00 GMT 2019,
+                                 date_of_birth: Wed Jan 02 00:00:00 UTC 2019,
                                  address: null,
                                  email: developer@me.com,
                                  gender: F,
                                  phone_number: 415-555-1212,
-                                 start_date: Sun Jan 19 00:00:00 GMT 2020,
-                                 end_date: Sun Jan 19 00:00:00 GMT 2020,
+                                 start_date: Sun Jan 19 00:00:00 UTC 2020,
+                                 end_date: Sun Jan 19 00:00:00 UTC 2020,
                                  payroll_calendar_id: null,
                                  updated_date_utc: null,
                                  created_date_utc: null,
diff --git a/docs/payroll_uk/EmployeeLeaveType.md b/docs/payroll_uk/EmployeeLeaveType.md
index 7f3e8428..c8030faf 100644
--- a/docs/payroll_uk/EmployeeLeaveType.md
+++ b/docs/payroll_uk/EmployeeLeaveType.md
@@ -23,7 +23,7 @@ instance = XeroRuby::PayrollUk::EmployeeLeaveType.new(leave_type_id: null,
                                  maximum_to_accrue: null,
                                  opening_balance: null,
                                  rate_accrued_hourly: null,
-                                 schedule_of_accrual_date: Mon Apr 01 00:00:00 GMT 2024)
+                                 schedule_of_accrual_date: Mon Apr 01 00:00:00 UTC 2024)
 ```
 
 
diff --git a/docs/payroll_uk/NICategory.md b/docs/payroll_uk/NICategory.md
index 3af09e8d..7a113cc6 100644
--- a/docs/payroll_uk/NICategory.md
+++ b/docs/payroll_uk/NICategory.md
@@ -15,10 +15,10 @@ Name | Type | Description | Notes
 ```ruby
 require 'XeroRuby::PayrollUk'
 
-instance = XeroRuby::PayrollUk::NICategory.new(start_date: Mon Dec 02 00:00:00 GMT 2024,
+instance = XeroRuby::PayrollUk::NICategory.new(start_date: Mon Dec 02 00:00:00 UTC 2024,
                                  ni_category: null,
                                  ni_category_id: 15,
-                                 date_first_employed_as_civilian: Mon Dec 02 00:00:00 GMT 2024,
+                                 date_first_employed_as_civilian: Mon Dec 02 00:00:00 UTC 2024,
                                  workplace_postcode: SW1A 1AA)
 ```
 
diff --git a/docs/payroll_uk/PayrollUkApi.md b/docs/payroll_uk/PayrollUkApi.md
index f0070bd6..c98de47c 100644
--- a/docs/payroll_uk/PayrollUkApi.md
+++ b/docs/payroll_uk/PayrollUkApi.md
@@ -72,7 +72,6 @@ Method | HTTP request | Description
 [**update_employee_leave**](PayrollUkApi.md#update_employee_leave) | **PUT** /Employees/{EmployeeID}/Leave/{LeaveID} | Updates a specific employee&#39;s leave records
 [**update_employee_opening_balances**](PayrollUkApi.md#update_employee_opening_balances) | **PUT** /Employees/{EmployeeID}/ukopeningbalances | Updates a specific employee&#39;s opening balances
 [**update_employee_salary_and_wage**](PayrollUkApi.md#update_employee_salary_and_wage) | **PUT** /Employees/{EmployeeID}/SalaryAndWages/{SalaryAndWagesID} | Updates salary and wages record for a specific employee
-[**update_pay_run**](PayrollUkApi.md#update_pay_run) | **PUT** /PayRuns/{PayRunID} | Updates a specific pay run
 [**update_timesheet_line**](PayrollUkApi.md#update_timesheet_line) | **PUT** /Timesheets/{TimesheetID}/Lines/{TimesheetLineID} | Updates a specific timesheet line for a specific timesheet
 
 
@@ -4679,77 +4678,6 @@ Name | Type | Description  | Notes
 - **Accept**: application/json
 
 
-## update_pay_run
-
-> PayRunObject update_pay_run(xero_tenant_id, pay_run_id, pay_run, opts)
-
-Updates a specific pay run
-
-### Example
-
-```ruby
-# load the gem
-require 'xero-ruby'
-
-creds = {
-  client_id: ENV['CLIENT_ID'],
-  client_secret: ENV['CLIENT_SECRET'],
-  redirect_uri: ENV['REDIRECT_URI'],
-  scopes: ENV['SCOPES']
-}
-xero_client = XeroRuby::ApiClient.new(credentials: creds)
-
-token_set = fetch_valid_token_set(user) # example
-
-xero_client.refresh_token_set(token_set)
-
-# You need to namespace your api method call to one of the following api sets
-# [:accounting_api, :assets_api, :projects_api, :files_api, :payroll_au_api, :payroll_nz_api, :payroll_uk_api, :app_store_api]
-
-api_instance = xero_client.<api_set>
-
-
-
-xero_tenant_id = 'xero_tenant_id_example' # String | Xero identifier for Tenant
-pay_run_id = 'pay_run_id_example' # String | Identifier for the pay run
-pay_run = {"paymentDate":"2020-05-01"} # PayRun | 
-opts = {
-  idempotency_key: 'KEY_VALUE' # String | This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-}
-
-begin
-  #Updates a specific pay run
-  result = api_instance.update_pay_run(xero_tenant_id, pay_run_id, pay_run, opts)
-  p result
-rescue XeroRuby::PayrollUk::ApiError => e
-  puts "Exception when calling PayrollUkApi->update_pay_run: #{e}"
-end
-```
-
-### Parameters
-
-
-Name | Type | Description  | Notes
-------------- | ------------- | ------------- | -------------
- **xero_tenant_id** | **String**| Xero identifier for Tenant | 
- **pay_run_id** | [**String**](.md)| Identifier for the pay run | 
- **pay_run** | [**PayRun**](PayRun.md)|  | 
- **idempotency_key** | **String**| This allows you to safely retry requests without the risk of duplicate processing. 128 character max. | [optional] 
-
-### Return type
-
-[**PayRunObject**](PayRunObject.md)
-
-### Authorization
-
-[OAuth2](../README.md#OAuth2)
-
-### HTTP request headers
-
-- **Content-Type**: application/json
-- **Accept**: application/json
-
-
 ## update_timesheet_line
 
 > TimesheetLineObject update_timesheet_line(xero_tenant_id, timesheet_id, timesheet_line_id, timesheet_line, opts)
diff --git a/docs/payroll_uk/index.html b/docs/payroll_uk/index.html
index 519567f6..8f6b8238 100644
--- a/docs/payroll_uk/index.html
+++ b/docs/payroll_uk/index.html
@@ -3600,7 +3600,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="PayrollUk"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="PayrollUk"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="PayrollUk"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="PayrollUk"><a href="#api-PayrollUk">Methods</a></li>
               <li data-group="PayrollUk" data-name="approveTimesheet" class="">
                 <a href="#api-PayrollUk-approveTimesheet">approveTimesheet</a>
@@ -3806,9 +3806,6 @@
               <li data-group="PayrollUk" data-name="updateEmployeeSalaryAndWage" class="">
                 <a href="#api-PayrollUk-updateEmployeeSalaryAndWage">updateEmployeeSalaryAndWage</a>
               </li>
-              <li data-group="PayrollUk" data-name="updatePayRun" class="">
-                <a href="#api-PayrollUk-updatePayRun">updatePayRun</a>
-              </li>
               <li data-group="PayrollUk" data-name="updateTimesheetLine" class="">
                 <a href="#api-PayrollUk-updateTimesheetLine">updateTimesheetLine</a>
               </li>
@@ -13571,186 +13568,6 @@ <h2>Parameters</h2>
     }
   },
   "required" : true
-}
-    </script>
-                  </table>
-                </article>
-              </div>
-              <hr>
-              <div id="api-PayrollUk-updatePayRun">
-                <article id="api-PayrollUk-updatePayRun-0" data-group="User" data-name="updatePayRun" data-version="0">
-                  <div class="pull-left">
-                    <h1>updatePayRun</h1>
-                    <p>Updates a specific pay run</p>
-                  </div>
-                  <div class="pull-right"></div>
-                  <div class="clearfix"></div>
-                  <p></p>
-                  <p class="marked"></p>
-                  <p></p>
-                  <br />
-                  <pre class="prettyprint language-html prettyprinted" data-type="put"><code><span class="pln">/PayRuns/{PayRunID}</span></code></pre>
-                  <p>
-                  <h3>Usage and SDK Samples</h3>
-                  </p>
-                  <ul class="nav nav-tabs nav-tabs-examples">
-                    <!-- *****REPLACE***** comment out the other languages <li> -->
-                    <li class=""><a href="#examples-PayrollUk-updatePayRun-0-ruby">Ruby</a></li>
-                  </ul>
-                  <div class="tab-content">
-                    <!-- *****REPLACE***** comment out the other languages tab-pane -->
-                    <div class="tab-pane" id="examples-PayrollUk-updatePayRun-0-ruby">
-                      <pre class="prettyprint"><code class="language-ruby">xero_client.set_token_set(user.token_set)
-
-xero_tenant_id = 'xeroTenantId_example'
-pay_run_id = '38400000-8cf0-11bd-b23e-10b96e4ef00d'
-idempotency_key = 'KEY_VALUE'
-start_date = 'YYYY-MM-DD'
-payment_date = 'YYYY-MM-DD'
-
-pay_run_calendar = { 
-  calendar_type:  XeroRuby::PayrollUk::calendar_type::WEEKLY,
-  period_start_date:  start_date,
-  payment_date:  payment_date
-}  
-
-begin
-  response = xero_client.accounting_api.update_pay_run(xero_tenant_id, pay_run_id, payRun, idempotency_key)
-  return response
-rescue XeroRuby::ApiError => e
-  puts "Exception when calling update_pay_run: #{e}"
-end
-</code></pre>
-                    </div>
-                  </div>
-                  <h2>Scopes</h2>
-                  <table>
-                    
-                    <tr>
-                      <td>payroll.payruns</td>
-                      <td>Grant read-write access to payroll payruns</td>
-                    </tr>
-                    
-                  </table>
-                  <h2>Parameters</h2>
-                  <div class="methodsubtabletitle">Path parameters</div>
-                  <table id="methodsubtable">
-                    <tr>
-                      <th width="150px">Name</th>
-                      <th>Description</th>
-                    </tr>
-                    <tr><td style="width:150px;">PayRunID<span style="color:red;">*</span></td>
-<td>
-
-
-    <div id="d2e199_updatePayRun_payRunID">
-        <div class="json-schema-view">
-            <div class="primitive">
-                <span class="type">
-                    UUID
-                </span>
-                    <span class="format">
-                        (uuid)
-                    </span>
-
-                    <div class="inner description marked">
-Identifier for the pay run
-                    </div>
-            </div>
-                <div class="inner required">
-                    Required
-                </div>
-        </div>
-    </div>
-</td>
-</tr>
-
-                  </table>
-                  <div class="methodsubtabletitle">Header parameters</div>
-                  <table id="methodsubtable">
-                    <tr>
-                      <th width="150px">Name</th>
-                      <th>Description</th>
-                    </tr>
-                    <tr><td style="width:150px;">Xero-Tenant-Id<span style="color:red;">*</span></td>
-<td>
-
-
-    <div id="d2e199_updatePayRun_xeroTenantId">
-        <div class="json-schema-view">
-            <div class="primitive">
-                <span class="type">
-                    String
-                </span>
-
-                    <div class="inner description marked">
-Xero identifier for Tenant
-                    </div>
-            </div>
-                <div class="inner required">
-                    Required
-                </div>
-        </div>
-    </div>
-</td>
-</tr>
-
-                    <tr><td style="width:150px;">Idempotency-Key</td>
-<td>
-
-
-    <div id="d2e199_updatePayRun_idempotencyKey">
-        <div class="json-schema-view">
-            <div class="primitive">
-                <span class="type">
-                    String
-                </span>
-
-                    <div class="inner description marked">
-This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-                    </div>
-            </div>
-        </div>
-    </div>
-</td>
-</tr>
-
-                  </table>
-                  <div class="methodsubtabletitle">Body parameters</div>
-                  <table id="methodsubtable">
-                    <tr>
-                      <th width="150px">Name</th>
-                      <th>Description</th>
-                    </tr>
-                    <tr>
-  <td style="width:150px;">payRun <span style="color:red;">*</span></td>
-  <td>
-    <div class="json-schema-view">
-      <div class="primitive">
-        <span class="type">
-        PayRun
-        </span>
-        <div class="inner description marked">
-          
-        </div>
-      </div>
-      <div class="inner required">
-        Required
-      </div>
-    </div>
-    <script type="application/ld+json">
-      {
-  "content" : {
-    "application/json" : {
-      "schema" : {
-        "$ref" : "#/components/schemas/PayRun"
-      },
-      "example" : {
-        "paymentDate" : "2020-05-01"
-      }
-    }
-  },
-  "required" : true
 }
     </script>
                   </table>
diff --git a/docs/projects/index.html b/docs/projects/index.html
index 81206f61..57a8d813 100644
--- a/docs/projects/index.html
+++ b/docs/projects/index.html
@@ -1462,7 +1462,7 @@
           <nav id="scrollingNav">
             <ul class="sidenav nav nav-list">
               <li class="nav-header" data-group="Project"><strong>SDK: </strong><span id='sdk-name'></span></li>
-              <li class="nav-header" data-group="Project"><strong>VSN: </strong>12.1.0</li>
+              <li class="nav-header" data-group="Project"><strong>VSN: </strong>12.2.0</li>
               <li class="nav-header" data-group="Project"><a href="#api-Project">Methods</a></li>
               <li data-group="Project" data-name="createProject" class="">
                 <a href="#api-Project-createProject">createProject</a>
diff --git a/lib/xero-ruby/api/payroll_nz_api.rb b/lib/xero-ruby/api/payroll_nz_api.rb
index 0c5adeaf..6222c0ac 100644
--- a/lib/xero-ruby/api/payroll_nz_api.rb
+++ b/lib/xero-ruby/api/payroll_nz_api.rb
@@ -5477,92 +5477,6 @@ def update_employee_tax_with_http_info(xero_tenant_id, employee_id, employee_tax
       return data, status_code, headers
     end
 
-    # Updates a pay run
-    # @param xero_tenant_id [String] Xero identifier for Tenant
-    # @param pay_run_id [String] Identifier for the pay run
-    # @param pay_run [PayRun] 
-    # @param [Hash] opts the optional parameters
-    # @option opts [String] :idempotency_key This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-    # @return [PayRunObject]
-    def update_pay_run(xero_tenant_id, pay_run_id, pay_run, opts = {})
-      data, _status_code, _headers = update_pay_run_with_http_info(xero_tenant_id, pay_run_id, pay_run, opts)
-      data
-    end
-
-    # Updates a pay run
-    # @param xero_tenant_id [String] Xero identifier for Tenant
-    # @param pay_run_id [String] Identifier for the pay run
-    # @param pay_run [PayRun] 
-    # @param [Hash] opts the optional parameters
-    # @option opts [String] :idempotency_key This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-    # @return [Array<(PayRunObject, Integer, Hash)>] PayRunObject data, response status code and response headers
-    def update_pay_run_with_http_info(xero_tenant_id, pay_run_id, pay_run, options = {})
-      opts = options.dup
-      if @api_client.config.debugging
-        @api_client.config.logger.debug 'Calling API: PayrollNzApi.update_pay_run ...'
-      end
-      # verify the required parameter 'xero_tenant_id' is set
-      if @api_client.config.client_side_validation && xero_tenant_id.nil?
-        fail ArgumentError, "Missing the required parameter 'xero_tenant_id' when calling PayrollNzApi.update_pay_run"
-      end
-      # verify the required parameter 'pay_run_id' is set
-      if @api_client.config.client_side_validation && pay_run_id.nil?
-        fail ArgumentError, "Missing the required parameter 'pay_run_id' when calling PayrollNzApi.update_pay_run"
-      end
-      # verify the required parameter 'pay_run' is set
-      if @api_client.config.client_side_validation && pay_run.nil?
-        fail ArgumentError, "Missing the required parameter 'pay_run' when calling PayrollNzApi.update_pay_run"
-      end
-      # resource path
-      local_var_path = '/PayRuns/{PayRunID}'.sub('{' + 'PayRunID' + '}', pay_run_id.to_s)
-
-      # camelize keys of incoming `where` opts
-      opts[:'where'] = @api_client.parameterize_where(opts[:'where']) if !opts[:'where'].nil?
-
-      # query parameters
-      query_params = opts[:query_params] || {}
-      
-      # XeroAPI's `IDs` convention openapi-generator does not snake_case properly.. manual over-riding `i_ds` malformations:
-      query_params[:'IDs'] = @api_client.build_collection_param(opts[:'ids'], :csv) if !opts[:'ids'].nil?
-      query_params[:'ContactIDs'] = @api_client.build_collection_param(opts[:'contact_ids'], :csv) if !opts[:'contact_ids'].nil?
-
-      # header parameters
-      header_params = opts[:header_params] || {}
-      # HTTP header 'Accept' (if needed)
-      header_params['Accept'] = @api_client.select_header_accept(['application/json'])
-      # HTTP header 'Content-Type'
-      header_params['Content-Type'] = @api_client.select_header_content_type(['application/json'])
-      header_params[:'Xero-Tenant-Id'] = xero_tenant_id
-      header_params[:'Idempotency-Key'] = opts[:'idempotency_key'] if !opts[:'idempotency_key'].nil?
-
-      # form parameters
-      form_params = opts[:form_params] || {}
-
-      # http body (model)
-      post_body = opts[:body] || @api_client.object_to_http_body(pay_run) 
-
-      # return_type
-      return_type = opts[:return_type] || 'PayRunObject' 
-
-      # auth_names
-      auth_names = opts[:auth_names] || ['OAuth2']
-
-      new_options = opts.merge(
-        :header_params => header_params,
-        :query_params => query_params,
-        :form_params => form_params,
-        :body => post_body,
-        :auth_names => auth_names,
-        :return_type => return_type
-      )
-
-      data, status_code, headers = @api_client.call_api(:PUT, local_var_path, "PayrollNzApi", new_options)
-      if @api_client.config.debugging
-        @api_client.config.logger.debug "API called: PayrollNzApi#update_pay_run\nData: #{data.inspect}\nStatus code: #{status_code}\nHeaders: #{headers}"
-      end
-      return data, status_code, headers
-    end
-
     # Creates an employee pay slip
     # @param xero_tenant_id [String] Xero identifier for Tenant
     # @param pay_slip_id [String] Identifier for the payslip
diff --git a/lib/xero-ruby/api/payroll_uk_api.rb b/lib/xero-ruby/api/payroll_uk_api.rb
index a0bacfa7..8ed0f30a 100644
--- a/lib/xero-ruby/api/payroll_uk_api.rb
+++ b/lib/xero-ruby/api/payroll_uk_api.rb
@@ -5379,92 +5379,6 @@ def update_employee_salary_and_wage_with_http_info(xero_tenant_id, employee_id,
       return data, status_code, headers
     end
 
-    # Updates a specific pay run
-    # @param xero_tenant_id [String] Xero identifier for Tenant
-    # @param pay_run_id [String] Identifier for the pay run
-    # @param pay_run [PayRun] 
-    # @param [Hash] opts the optional parameters
-    # @option opts [String] :idempotency_key This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-    # @return [PayRunObject]
-    def update_pay_run(xero_tenant_id, pay_run_id, pay_run, opts = {})
-      data, _status_code, _headers = update_pay_run_with_http_info(xero_tenant_id, pay_run_id, pay_run, opts)
-      data
-    end
-
-    # Updates a specific pay run
-    # @param xero_tenant_id [String] Xero identifier for Tenant
-    # @param pay_run_id [String] Identifier for the pay run
-    # @param pay_run [PayRun] 
-    # @param [Hash] opts the optional parameters
-    # @option opts [String] :idempotency_key This allows you to safely retry requests without the risk of duplicate processing. 128 character max.
-    # @return [Array<(PayRunObject, Integer, Hash)>] PayRunObject data, response status code and response headers
-    def update_pay_run_with_http_info(xero_tenant_id, pay_run_id, pay_run, options = {})
-      opts = options.dup
-      if @api_client.config.debugging
-        @api_client.config.logger.debug 'Calling API: PayrollUkApi.update_pay_run ...'
-      end
-      # verify the required parameter 'xero_tenant_id' is set
-      if @api_client.config.client_side_validation && xero_tenant_id.nil?
-        fail ArgumentError, "Missing the required parameter 'xero_tenant_id' when calling PayrollUkApi.update_pay_run"
-      end
-      # verify the required parameter 'pay_run_id' is set
-      if @api_client.config.client_side_validation && pay_run_id.nil?
-        fail ArgumentError, "Missing the required parameter 'pay_run_id' when calling PayrollUkApi.update_pay_run"
-      end
-      # verify the required parameter 'pay_run' is set
-      if @api_client.config.client_side_validation && pay_run.nil?
-        fail ArgumentError, "Missing the required parameter 'pay_run' when calling PayrollUkApi.update_pay_run"
-      end
-      # resource path
-      local_var_path = '/PayRuns/{PayRunID}'.sub('{' + 'PayRunID' + '}', pay_run_id.to_s)
-
-      # camelize keys of incoming `where` opts
-      opts[:'where'] = @api_client.parameterize_where(opts[:'where']) if !opts[:'where'].nil?
-
-      # query parameters
-      query_params = opts[:query_params] || {}
-      
-      # XeroAPI's `IDs` convention openapi-generator does not snake_case properly.. manual over-riding `i_ds` malformations:
-      query_params[:'IDs'] = @api_client.build_collection_param(opts[:'ids'], :csv) if !opts[:'ids'].nil?
-      query_params[:'ContactIDs'] = @api_client.build_collection_param(opts[:'contact_ids'], :csv) if !opts[:'contact_ids'].nil?
-
-      # header parameters
-      header_params = opts[:header_params] || {}
-      # HTTP header 'Accept' (if needed)
-      header_params['Accept'] = @api_client.select_header_accept(['application/json'])
-      # HTTP header 'Content-Type'
-      header_params['Content-Type'] = @api_client.select_header_content_type(['application/json'])
-      header_params[:'Xero-Tenant-Id'] = xero_tenant_id
-      header_params[:'Idempotency-Key'] = opts[:'idempotency_key'] if !opts[:'idempotency_key'].nil?
-
-      # form parameters
-      form_params = opts[:form_params] || {}
-
-      # http body (model)
-      post_body = opts[:body] || @api_client.object_to_http_body(pay_run) 
-
-      # return_type
-      return_type = opts[:return_type] || 'PayRunObject' 
-
-      # auth_names
-      auth_names = opts[:auth_names] || ['OAuth2']
-
-      new_options = opts.merge(
-        :header_params => header_params,
-        :query_params => query_params,
-        :form_params => form_params,
-        :body => post_body,
-        :auth_names => auth_names,
-        :return_type => return_type
-      )
-
-      data, status_code, headers = @api_client.call_api(:PUT, local_var_path, "PayrollUkApi", new_options)
-      if @api_client.config.debugging
-        @api_client.config.logger.debug "API called: PayrollUkApi#update_pay_run\nData: #{data.inspect}\nStatus code: #{status_code}\nHeaders: #{headers}"
-      end
-      return data, status_code, headers
-    end
-
     # Updates a specific timesheet line for a specific timesheet
     # @param xero_tenant_id [String] Xero identifier for Tenant
     # @param timesheet_id [String] Identifier for the timesheet
diff --git a/lib/xero-ruby/models/accounting/contact.rb b/lib/xero-ruby/models/accounting/contact.rb
index 28245a66..9544b2d3 100644
--- a/lib/xero-ruby/models/accounting/contact.rb
+++ b/lib/xero-ruby/models/accounting/contact.rb
@@ -58,6 +58,13 @@ class Contact
     # Tax number of contact – this is also known as the ABN (Australia), GST Number (New Zealand), VAT Number (UK) or Tax ID Number (US and global) in the Xero UI depending on which regionalized version of Xero you are using (max length = 50)
     attr_accessor :tax_number
     
+    # Identifier of the regional type of tax number, such as US, UK, or other regional tax identifiers
+    attr_accessor :tax_number_type
+    SSN ||= "SSN".freeze
+    EIN ||= "EIN".freeze
+    ITIN ||= "ITIN".freeze
+    ATIN ||= "ATIN".freeze
+    
     # The tax type from TaxRates
     attr_accessor :accounts_receivable_tax_type
     
@@ -189,6 +196,7 @@ def self.attribute_map
         :'contact_persons' => :'ContactPersons',
         :'bank_account_details' => :'BankAccountDetails',
         :'tax_number' => :'TaxNumber',
+        :'tax_number_type' => :'TaxNumberType',
         :'accounts_receivable_tax_type' => :'AccountsReceivableTaxType',
         :'accounts_payable_tax_type' => :'AccountsPayableTaxType',
         :'addresses' => :'Addresses',
@@ -237,6 +245,7 @@ def self.openapi_types
         :'contact_persons' => :'Array<ContactPerson>',
         :'bank_account_details' => :'String',
         :'tax_number' => :'String',
+        :'tax_number_type' => :'String',
         :'accounts_receivable_tax_type' => :'String',
         :'accounts_payable_tax_type' => :'String',
         :'addresses' => :'Array<Address>',
@@ -338,6 +347,10 @@ def initialize(attributes = {})
         self.tax_number = attributes[:'tax_number']
       end
 
+      if attributes.key?(:'tax_number_type')
+        self.tax_number_type = attributes[:'tax_number_type']
+      end
+
       if attributes.key?(:'accounts_receivable_tax_type')
         self.accounts_receivable_tax_type = attributes[:'accounts_receivable_tax_type']
       end
@@ -525,6 +538,8 @@ def valid?
       return false if !@company_number.nil? && @company_number.to_s.length > 50
       return false if !@email_address.nil? && @email_address.to_s.length > 255
       return false if !@tax_number.nil? && @tax_number.to_s.length > 50
+      tax_number_type_validator = EnumAttributeValidator.new('String', ["SSN", "EIN", "ITIN", "ATIN"])
+      return false unless tax_number_type_validator.valid?(@tax_number_type)
       sales_default_line_amount_type_validator = EnumAttributeValidator.new('String', ["INCLUSIVE", "EXCLUSIVE", "NONE"])
       return false unless sales_default_line_amount_type_validator.valid?(@sales_default_line_amount_type)
       purchases_default_line_amount_type_validator = EnumAttributeValidator.new('String', ["INCLUSIVE", "EXCLUSIVE", "NONE"])
@@ -622,6 +637,16 @@ def tax_number=(tax_number)
       @tax_number = tax_number
     end
 
+    # Custom attribute writer method checking allowed values (enum).
+    # @param [Object] tax_number_type Object to be assigned
+    def tax_number_type=(tax_number_type)
+      validator = EnumAttributeValidator.new('String', ["SSN", "EIN", "ITIN", "ATIN"])
+      unless validator.valid?(tax_number_type)
+        fail ArgumentError, "invalid value for \"tax_number_type\", must be one of #{validator.allowable_values}."
+      end
+      @tax_number_type = tax_number_type
+    end
+
     # Custom attribute writer method checking allowed values (enum).
     # @param [Object] sales_default_line_amount_type Object to be assigned
     def sales_default_line_amount_type=(sales_default_line_amount_type)
@@ -660,6 +685,7 @@ def ==(o)
           contact_persons == o.contact_persons &&
           bank_account_details == o.bank_account_details &&
           tax_number == o.tax_number &&
+          tax_number_type == o.tax_number_type &&
           accounts_receivable_tax_type == o.accounts_receivable_tax_type &&
           accounts_payable_tax_type == o.accounts_payable_tax_type &&
           addresses == o.addresses &&
@@ -700,7 +726,7 @@ def eql?(o)
     # Calculates hash code according to all attributes.
     # @return [Integer] Hash code
     def hash
-      [contact_id, merged_to_contact_id, contact_number, account_number, contact_status, name, first_name, last_name, company_number, email_address, contact_persons, bank_account_details, tax_number, accounts_receivable_tax_type, accounts_payable_tax_type, addresses, phones, is_supplier, is_customer, sales_default_line_amount_type, purchases_default_line_amount_type, default_currency, xero_network_key, sales_default_account_code, purchases_default_account_code, sales_tracking_categories, purchases_tracking_categories, tracking_category_name, tracking_category_option, payment_terms, updated_date_utc, contact_groups, website, branding_theme, batch_payments, discount, balances, attachments, has_attachments, validation_errors, has_validation_errors, status_attribute_string].hash
+      [contact_id, merged_to_contact_id, contact_number, account_number, contact_status, name, first_name, last_name, company_number, email_address, contact_persons, bank_account_details, tax_number, tax_number_type, accounts_receivable_tax_type, accounts_payable_tax_type, addresses, phones, is_supplier, is_customer, sales_default_line_amount_type, purchases_default_line_amount_type, default_currency, xero_network_key, sales_default_account_code, purchases_default_account_code, sales_tracking_categories, purchases_tracking_categories, tracking_category_name, tracking_category_option, payment_terms, updated_date_utc, contact_groups, website, branding_theme, batch_payments, discount, balances, attachments, has_attachments, validation_errors, has_validation_errors, status_attribute_string].hash
     end
 
     # Builds the object from hash
diff --git a/lib/xero-ruby/models/assets/book_depreciation_detail.rb b/lib/xero-ruby/models/assets/book_depreciation_detail.rb
index a96c0892..4a18f8b9 100644
--- a/lib/xero-ruby/models/assets/book_depreciation_detail.rb
+++ b/lib/xero-ruby/models/assets/book_depreciation_detail.rb
@@ -37,6 +37,21 @@ class BookDepreciationDetail
     # All depreciation occurring in the current financial year.
     attr_accessor :current_accum_depreciation_amount
     
+    # (New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its business use.
+    attr_accessor :business_use_capital_gain
+    
+    # (New Zealand Orgs Only) Represents the gain or loss from the disposal of the business use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s business use.
+    attr_accessor :business_use_current_gain_loss
+    
+    # (New Zealand Orgs Only) The portion of capital gain realised from the disposal of a fixed asset that is attributable to its private (non-business) use.
+    attr_accessor :private_use_capital_gain
+    
+    # (New Zealand Orgs Only) Represents the gain or loss from the disposal of the private use portion of a fixed asset. This value records the financial result (profit or loss) related specifically to the asset’s private use.
+    attr_accessor :private_use_current_gain_loss
+    
+    # (New Zealand Orgs Only) The Investment Boost deduction percentage.
+    attr_accessor :initial_deduction_percentage
+    
     # Attribute mapping from ruby-style variable name to JSON key.
     def self.attribute_map
       {
@@ -46,7 +61,12 @@ def self.attribute_map
         :'cost_limit' => :'costLimit',
         :'residual_value' => :'residualValue',
         :'prior_accum_depreciation_amount' => :'priorAccumDepreciationAmount',
-        :'current_accum_depreciation_amount' => :'currentAccumDepreciationAmount'
+        :'current_accum_depreciation_amount' => :'currentAccumDepreciationAmount',
+        :'business_use_capital_gain' => :'businessUseCapitalGain',
+        :'business_use_current_gain_loss' => :'businessUseCurrentGainLoss',
+        :'private_use_capital_gain' => :'privateUseCapitalGain',
+        :'private_use_current_gain_loss' => :'privateUseCurrentGainLoss',
+        :'initial_deduction_percentage' => :'initialDeductionPercentage'
       }
     end
 
@@ -59,7 +79,12 @@ def self.openapi_types
         :'cost_limit' => :'BigDecimal',
         :'residual_value' => :'BigDecimal',
         :'prior_accum_depreciation_amount' => :'BigDecimal',
-        :'current_accum_depreciation_amount' => :'BigDecimal'
+        :'current_accum_depreciation_amount' => :'BigDecimal',
+        :'business_use_capital_gain' => :'BigDecimal',
+        :'business_use_current_gain_loss' => :'BigDecimal',
+        :'private_use_capital_gain' => :'BigDecimal',
+        :'private_use_current_gain_loss' => :'BigDecimal',
+        :'initial_deduction_percentage' => :'Float'
       }
     end
 
@@ -105,6 +130,26 @@ def initialize(attributes = {})
       if attributes.key?(:'current_accum_depreciation_amount')
         self.current_accum_depreciation_amount = attributes[:'current_accum_depreciation_amount']
       end
+
+      if attributes.key?(:'business_use_capital_gain')
+        self.business_use_capital_gain = attributes[:'business_use_capital_gain']
+      end
+
+      if attributes.key?(:'business_use_current_gain_loss')
+        self.business_use_current_gain_loss = attributes[:'business_use_current_gain_loss']
+      end
+
+      if attributes.key?(:'private_use_capital_gain')
+        self.private_use_capital_gain = attributes[:'private_use_capital_gain']
+      end
+
+      if attributes.key?(:'private_use_current_gain_loss')
+        self.private_use_current_gain_loss = attributes[:'private_use_current_gain_loss']
+      end
+
+      if attributes.key?(:'initial_deduction_percentage')
+        self.initial_deduction_percentage = attributes[:'initial_deduction_percentage']
+      end
     end
 
     # Show invalid properties with the reasons. Usually used together with valid?
@@ -131,7 +176,12 @@ def ==(o)
           cost_limit == o.cost_limit &&
           residual_value == o.residual_value &&
           prior_accum_depreciation_amount == o.prior_accum_depreciation_amount &&
-          current_accum_depreciation_amount == o.current_accum_depreciation_amount
+          current_accum_depreciation_amount == o.current_accum_depreciation_amount &&
+          business_use_capital_gain == o.business_use_capital_gain &&
+          business_use_current_gain_loss == o.business_use_current_gain_loss &&
+          private_use_capital_gain == o.private_use_capital_gain &&
+          private_use_current_gain_loss == o.private_use_current_gain_loss &&
+          initial_deduction_percentage == o.initial_deduction_percentage
     end
 
     # @see the `==` method
@@ -143,7 +193,7 @@ def eql?(o)
     # Calculates hash code according to all attributes.
     # @return [Integer] Hash code
     def hash
-      [current_capital_gain, current_gain_loss, depreciation_start_date, cost_limit, residual_value, prior_accum_depreciation_amount, current_accum_depreciation_amount].hash
+      [current_capital_gain, current_gain_loss, depreciation_start_date, cost_limit, residual_value, prior_accum_depreciation_amount, current_accum_depreciation_amount, business_use_capital_gain, business_use_current_gain_loss, private_use_capital_gain, private_use_current_gain_loss, initial_deduction_percentage].hash
     end
 
     # Builds the object from hash
diff --git a/lib/xero-ruby/version.rb b/lib/xero-ruby/version.rb
index 317fa690..bace4315 100644
--- a/lib/xero-ruby/version.rb
+++ b/lib/xero-ruby/version.rb
@@ -7,9 +7,9 @@
 Generated by: https://openapi-generator.tech
 OpenAPI Generator version: 4.3.1
 
-The version of the XeroOpenAPI document: 9.1.0
+The version of the XeroOpenAPI document: 9.2.0
 =end
 
 module XeroRuby
-  VERSION = '12.1.0'
+  VERSION = '12.2.0'
 end