diff --git a/Gemfile.lock b/Gemfile.lock
index 0127f4a4..d52c59a3 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    xero-ruby (12.2.0)
+    xero-ruby (12.3.0)
       faraday (>= 2.0, < 3.0)
       json (~> 2.1, >= 2.1.0)
       json-jwt (~> 1.16, >= 1.16.3)
diff --git a/docs/accounting/index.html b/docs/accounting/index.html
index d54e23fa..9a5f78ce 100644
--- a/docs/accounting/index.html
+++ b/docs/accounting/index.html
@@ -6344,7 +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>12.2.0</li>
+              <li class="nav-header" data-group="Accounting"><strong>VSN: </strong>12.3.0</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>
diff --git a/docs/app_store/index.html b/docs/app_store/index.html
index 04dca181..6a7d8c33 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>12.2.0</li>
+              <li class="nav-header" data-group="AppStore"><strong>VSN: </strong>12.3.0</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/index.html b/docs/assets/index.html
index a98053f0..b2d31044 100644
--- a/docs/assets/index.html
+++ b/docs/assets/index.html
@@ -1419,7 +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>12.2.0</li>
+              <li class="nav-header" data-group="Asset"><strong>VSN: </strong>12.3.0</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 d17ae4e6..e1c13b4b 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>12.2.0</li>
+              <li class="nav-header" data-group="Files"><strong>VSN: </strong>12.3.0</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 4d0909d9..6213caaa 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>12.2.0</li>
+              <li class="nav-header" data-group="Finance"><strong>VSN: </strong>12.3.0</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 2b7342f6..6a82ef12 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>12.2.0</li>
+              <li class="nav-header" data-group="PayrollAu"><strong>VSN: </strong>12.3.0</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/index.html b/docs/payroll_nz/index.html
index 6ed4331c..628918a9 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>12.2.0</li>
+              <li class="nav-header" data-group="PayrollNz"><strong>VSN: </strong>12.3.0</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>
diff --git a/docs/payroll_uk/ContractType.md b/docs/payroll_uk/ContractType.md
new file mode 100644
index 00000000..3b6c387f
--- /dev/null
+++ b/docs/payroll_uk/ContractType.md
@@ -0,0 +1,16 @@
+# XeroRuby::PayrollUk::ContractType
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+## Code Sample
+
+```ruby
+require 'XeroRuby::PayrollUk'
+
+instance = XeroRuby::PayrollUk::ContractType.new()
+```
+
+
diff --git a/docs/payroll_uk/Contracts.md b/docs/payroll_uk/Contracts.md
new file mode 100644
index 00000000..f96ff0b5
--- /dev/null
+++ b/docs/payroll_uk/Contracts.md
@@ -0,0 +1,29 @@
+# XeroRuby::PayrollUk::Contracts
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**start_date** | **Date** | The contract start date of the employee. This will be locked once an employee has been paid and cannot be changed (YYYY-MM-DD) | 
+**employment_status** | [**EmploymentStatus**](EmploymentStatus.md) |  | 
+**contract_type** | [**ContractType**](ContractType.md) |  | 
+**public_key** | **String** | The public key of the contract. Public key is required if the intention is to edit an existing contract. If no key is supplied a new contract will be created | [optional] 
+**is_fixed_term** | **Boolean** | describes whether the contract is fixed term (required if trying to create Fixed term contract) | [optional] 
+**fixed_term_end_date** | **Date** | The fixed term end date of the employee. Not required if isFixedTerm is false or not provided (required if trying to create Fixed term contract) | [optional] 
+**developmental_role_details** | [**DevelopmentalRoleDetails**](DevelopmentalRoleDetails.md) |  | [optional] 
+
+## Code Sample
+
+```ruby
+require 'XeroRuby::PayrollUk'
+
+instance = XeroRuby::PayrollUk::Contracts.new(start_date: Mon Dec 02 00:00:00 UTC 2024,
+                                 employment_status: null,
+                                 contract_type: null,
+                                 public_key: null,
+                                 is_fixed_term: null,
+                                 fixed_term_end_date: Sat Nov 01 00:00:00 UTC 2025,
+                                 developmental_role_details: null)
+```
+
+
diff --git a/docs/payroll_uk/DevelopmentalRoleDetails.md b/docs/payroll_uk/DevelopmentalRoleDetails.md
new file mode 100644
index 00000000..ec2e36e7
--- /dev/null
+++ b/docs/payroll_uk/DevelopmentalRoleDetails.md
@@ -0,0 +1,23 @@
+# XeroRuby::PayrollUk::DevelopmentalRoleDetails
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+**start_date** | **Date** | The start date of the developmental role | 
+**end_date** | **Date** | The end date of the developmental role | 
+**developmental_role** | **String** | The developmental role type - \&quot;Apprentice\&quot; is the only supported role currently | 
+**public_key** | **String** | The public key of the developmental role. Public key is required if the intention is to edit an existing developmental role. If no key is supplied a new developmental role will be created | [optional] 
+
+## Code Sample
+
+```ruby
+require 'XeroRuby::PayrollUk'
+
+instance = XeroRuby::PayrollUk::DevelopmentalRoleDetails.new(start_date: Mon Dec 02 00:00:00 UTC 2024,
+                                 end_date: Mon Dec 02 00:00:00 UTC 2024,
+                                 developmental_role: Apprentice,
+                                 public_key: null)
+```
+
+
diff --git a/docs/payroll_uk/Employee.md b/docs/payroll_uk/Employee.md
index 99eb2907..dd4b03f4 100644
--- a/docs/payroll_uk/Employee.md
+++ b/docs/payroll_uk/Employee.md
@@ -22,6 +22,7 @@ Name | Type | Description | Notes
 **ni_categories** | [**Array&lt;NICategory&gt;**](NICategory.md) | The employee&#39;s NI categories | [optional] 
 **national_insurance_number** | **String** | National insurance number of the employee | [optional] 
 **is_off_payroll_worker** | **Boolean** | Whether the employee is an off payroll worker | [optional] 
+**contracts** | [**Array&lt;Contracts&gt;**](Contracts.md) | The employee&#39;s contracts | [optional] 
 
 ## Code Sample
 
@@ -45,7 +46,8 @@ instance = XeroRuby::PayrollUk::Employee.new(employee_id: d90457c4-f1be-4f2e-b4e
                                  ni_category: null,
                                  ni_categories: null,
                                  national_insurance_number: AB123456C,
-                                 is_off_payroll_worker: null)
+                                 is_off_payroll_worker: null,
+                                 contracts: null)
 ```
 
 
diff --git a/docs/payroll_uk/Employment.md b/docs/payroll_uk/Employment.md
index b4a39b5f..d29f780d 100644
--- a/docs/payroll_uk/Employment.md
+++ b/docs/payroll_uk/Employment.md
@@ -9,6 +9,7 @@ Name | Type | Description | Notes
 **employee_number** | **String** | The employment number of the employee | 
 **ni_category** | [**NICategoryLetter**](NICategoryLetter.md) |  | [optional] 
 **ni_categories** | [**Array&lt;NICategory&gt;**](NICategory.md) | The employee&#39;s NI categories | 
+**contracts** | [**Array&lt;Contracts&gt;**](Contracts.md) | The employee&#39;s contracts | [optional] 
 
 ## Code Sample
 
@@ -19,7 +20,8 @@ instance = XeroRuby::PayrollUk::Employment.new(payroll_calendar_id: null,
                                  start_date: null,
                                  employee_number: 7,
                                  ni_category: null,
-                                 ni_categories: null)
+                                 ni_categories: null,
+                                 contracts: null)
 ```
 
 
diff --git a/docs/payroll_uk/EmploymentStatus.md b/docs/payroll_uk/EmploymentStatus.md
new file mode 100644
index 00000000..64fe8950
--- /dev/null
+++ b/docs/payroll_uk/EmploymentStatus.md
@@ -0,0 +1,16 @@
+# XeroRuby::PayrollUk::EmploymentStatus
+
+## Properties
+
+Name | Type | Description | Notes
+------------ | ------------- | ------------- | -------------
+
+## Code Sample
+
+```ruby
+require 'XeroRuby::PayrollUk'
+
+instance = XeroRuby::PayrollUk::EmploymentStatus.new()
+```
+
+
diff --git a/docs/payroll_uk/index.html b/docs/payroll_uk/index.html
index 8f6b8238..44dc5e04 100644
--- a/docs/payroll_uk/index.html
+++ b/docs/payroll_uk/index.html
@@ -1091,6 +1091,53 @@
     }
   },
   "description" : ""
+};
+      defs["ContractType"] = {
+  "title" : "",
+  "type" : "string",
+  "description" : "The contract type of the employee.",
+  "example" : "FullTime",
+  "enum" : [ "FullTime", "PartTime", "ZeroHour", "Unspecified" ]
+};
+      defs["Contracts"] = {
+  "title" : "",
+  "required" : [ "contractType", "employmentStatus", "startDate" ],
+  "type" : "object",
+  "properties" : {
+    "startDate" : {
+      "type" : "string",
+      "description" : "The contract start date of the employee. This will be locked once an employee has been paid and cannot be changed (YYYY-MM-DD)",
+      "format" : "date",
+      "example" : "2024-12-02",
+      "x-is-date" : true
+    },
+    "employmentStatus" : {
+      "$ref" : "#/components/schemas/EmploymentStatus"
+    },
+    "contractType" : {
+      "$ref" : "#/components/schemas/ContractType"
+    },
+    "publicKey" : {
+      "type" : "string",
+      "description" : "The public key of the contract. Public key is required if the intention is to edit an existing contract. If no key is supplied a new contract will be created",
+      "format" : "uuid"
+    },
+    "isFixedTerm" : {
+      "type" : "boolean",
+      "description" : "describes whether the contract is fixed term (required if trying to create Fixed term contract)"
+    },
+    "fixedTermEndDate" : {
+      "type" : "string",
+      "description" : "The fixed term end date of the employee. Not required if isFixedTerm is false or not provided (required if trying to create Fixed term contract)",
+      "format" : "date",
+      "example" : "2025-11-01",
+      "x-is-date" : true
+    },
+    "developmentalRoleDetails" : {
+      "$ref" : "#/components/schemas/DevelopmentalRoleDetails"
+    }
+  },
+  "description" : ""
 };
       defs["CourtOrderLine"] = {
   "title" : "",
@@ -1249,6 +1296,38 @@
     }
   },
   "description" : ""
+};
+      defs["DevelopmentalRoleDetails"] = {
+  "title" : "",
+  "required" : [ "developmentalRole", "endDate", "startDate" ],
+  "type" : "object",
+  "properties" : {
+    "startDate" : {
+      "type" : "string",
+      "description" : "The start date of the developmental role",
+      "format" : "date",
+      "example" : "2024-12-02",
+      "x-is-date" : true
+    },
+    "endDate" : {
+      "type" : "string",
+      "description" : "The end date of the developmental role",
+      "format" : "date",
+      "example" : "2024-12-02",
+      "x-is-date" : true
+    },
+    "developmentalRole" : {
+      "type" : "string",
+      "description" : "The developmental role type - \"Apprentice\" is the only supported role currently",
+      "example" : "Apprentice"
+    },
+    "publicKey" : {
+      "type" : "string",
+      "description" : "The public key of the developmental role. Public key is required if the intention is to edit an existing developmental role. If no key is supplied a new developmental role will be created",
+      "format" : "uuid"
+    }
+  },
+  "description" : ""
 };
       defs["EarningsLine"] = {
   "title" : "",
@@ -1613,6 +1692,13 @@
     "isOffPayrollWorker" : {
       "type" : "boolean",
       "description" : "Whether the employee is an off payroll worker"
+    },
+    "contracts" : {
+      "type" : "array",
+      "description" : "The employee's contracts",
+      "items" : {
+        "$ref" : "#/components/schemas/Contracts"
+      }
     }
   },
   "description" : ""
@@ -2300,6 +2386,13 @@
       "items" : {
         "$ref" : "#/components/schemas/NICategory"
       }
+    },
+    "contracts" : {
+      "type" : "array",
+      "description" : "The employee's contracts",
+      "items" : {
+        "$ref" : "#/components/schemas/Contracts"
+      }
     }
   },
   "description" : ""
@@ -2319,6 +2412,13 @@
     }
   },
   "description" : ""
+};
+      defs["EmploymentStatus"] = {
+  "title" : "",
+  "type" : "string",
+  "description" : "The employment status of the employee.",
+  "example" : "Employee",
+  "enum" : [ "Employee", "Worker", "Unspecified" ]
 };
       defs["InvalidField"] = {
   "title" : "",
@@ -3600,7 +3700,7 @@
           <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>12.2.0</li>
+              <li class="nav-header" data-group="PayrollUk"><strong>VSN: </strong>12.3.0</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>
diff --git a/docs/projects/index.html b/docs/projects/index.html
index 57a8d813..384ed53e 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>12.2.0</li>
+              <li class="nav-header" data-group="Project"><strong>VSN: </strong>12.3.0</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.rb b/lib/xero-ruby.rb
index ff55029a..c1f26f2e 100644
--- a/lib/xero-ruby.rb
+++ b/lib/xero-ruby.rb
@@ -90,11 +90,14 @@
 require 'xero-ruby/models/payroll_uk/benefit_line'
 require 'xero-ruby/models/payroll_uk/benefit_object'
 require 'xero-ruby/models/payroll_uk/benefits'
+require 'xero-ruby/models/payroll_uk/contract_type'
+require 'xero-ruby/models/payroll_uk/contracts'
 require 'xero-ruby/models/payroll_uk/court_order_line'
 require 'xero-ruby/models/payroll_uk/deduction'
 require 'xero-ruby/models/payroll_uk/deduction_line'
 require 'xero-ruby/models/payroll_uk/deduction_object'
 require 'xero-ruby/models/payroll_uk/deductions'
+require 'xero-ruby/models/payroll_uk/developmental_role_details'
 require 'xero-ruby/models/payroll_uk/earnings_line'
 require 'xero-ruby/models/payroll_uk/earnings_order'
 require 'xero-ruby/models/payroll_uk/earnings_order_object'
@@ -131,6 +134,7 @@
 require 'xero-ruby/models/payroll_uk/employees'
 require 'xero-ruby/models/payroll_uk/employment'
 require 'xero-ruby/models/payroll_uk/employment_object'
+require 'xero-ruby/models/payroll_uk/employment_status'
 require 'xero-ruby/models/payroll_uk/invalid_field'
 require 'xero-ruby/models/payroll_uk/leave_accrual_line'
 require 'xero-ruby/models/payroll_uk/leave_earnings_line'
diff --git a/lib/xero-ruby/models/payroll_uk/contract_type.rb b/lib/xero-ruby/models/payroll_uk/contract_type.rb
new file mode 100644
index 00000000..f02af8b0
--- /dev/null
+++ b/lib/xero-ruby/models/payroll_uk/contract_type.rb
@@ -0,0 +1,38 @@
+=begin
+#Xero Payroll UK
+
+#This is the Xero Payroll API for orgs in the UK region.
+
+Contact: api@xero.com
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.3.1
+
+=end
+
+require 'time'
+require 'date'
+
+module XeroRuby::PayrollUk
+  class ContractType
+    FULL_TIME ||= "FullTime".freeze
+    PART_TIME ||= "PartTime".freeze
+    ZERO_HOUR ||= "ZeroHour".freeze
+    UNSPECIFIED ||= "Unspecified".freeze
+
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def build_from_hash(value)
+      constantValues = ContractType.constants.select { |c| ContractType::const_get(c) == value }
+      raise "Invalid ENUM value #{value} for class #ContractType" if constantValues.empty?
+      value
+    end
+  end
+end
diff --git a/lib/xero-ruby/models/payroll_uk/contracts.rb b/lib/xero-ruby/models/payroll_uk/contracts.rb
new file mode 100644
index 00000000..3c6e6c85
--- /dev/null
+++ b/lib/xero-ruby/models/payroll_uk/contracts.rb
@@ -0,0 +1,297 @@
+=begin
+#Xero Payroll UK
+
+#This is the Xero Payroll API for orgs in the UK region.
+
+Contact: api@xero.com
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.3.1
+
+=end
+
+require 'time'
+require 'date'
+
+module XeroRuby::PayrollUk
+  require 'bigdecimal'
+
+  class Contracts
+    # The contract start date of the employee. This will be locked once an employee has been paid and cannot be changed (YYYY-MM-DD)
+    attr_accessor :start_date
+    
+
+    attr_accessor :employment_status
+    
+
+    attr_accessor :contract_type
+    
+    # The public key of the contract. Public key is required if the intention is to edit an existing contract. If no key is supplied a new contract will be created
+    attr_accessor :public_key
+    
+    # describes whether the contract is fixed term (required if trying to create Fixed term contract)
+    attr_accessor :is_fixed_term
+    
+    # The fixed term end date of the employee. Not required if isFixedTerm is false or not provided (required if trying to create Fixed term contract)
+    attr_accessor :fixed_term_end_date
+    
+
+    attr_accessor :developmental_role_details
+    
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'start_date' => :'startDate',
+        :'employment_status' => :'employmentStatus',
+        :'contract_type' => :'contractType',
+        :'public_key' => :'publicKey',
+        :'is_fixed_term' => :'isFixedTerm',
+        :'fixed_term_end_date' => :'fixedTermEndDate',
+        :'developmental_role_details' => :'developmentalRoleDetails'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'start_date' => :'Date',
+        :'employment_status' => :'EmploymentStatus',
+        :'contract_type' => :'ContractType',
+        :'public_key' => :'String',
+        :'is_fixed_term' => :'Boolean',
+        :'fixed_term_end_date' => :'Date',
+        :'developmental_role_details' => :'DevelopmentalRoleDetails'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `XeroRuby::PayrollUk::Contracts` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `XeroRuby::PayrollUk::Contracts`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'start_date')
+        self.start_date = attributes[:'start_date']
+      end
+
+      if attributes.key?(:'employment_status')
+        self.employment_status = attributes[:'employment_status']
+      end
+
+      if attributes.key?(:'contract_type')
+        self.contract_type = attributes[:'contract_type']
+      end
+
+      if attributes.key?(:'public_key')
+        self.public_key = attributes[:'public_key']
+      end
+
+      if attributes.key?(:'is_fixed_term')
+        self.is_fixed_term = attributes[:'is_fixed_term']
+      end
+
+      if attributes.key?(:'fixed_term_end_date')
+        self.fixed_term_end_date = attributes[:'fixed_term_end_date']
+      end
+
+      if attributes.key?(:'developmental_role_details')
+        self.developmental_role_details = attributes[:'developmental_role_details']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      if @start_date.nil?
+        invalid_properties.push('invalid value for "start_date", start_date cannot be nil.')
+      end
+
+      if @employment_status.nil?
+        invalid_properties.push('invalid value for "employment_status", employment_status cannot be nil.')
+      end
+
+      if @contract_type.nil?
+        invalid_properties.push('invalid value for "contract_type", contract_type cannot be nil.')
+      end
+
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      return false if @start_date.nil?
+      return false if @employment_status.nil?
+      return false if @contract_type.nil?
+      true
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          start_date == o.start_date &&
+          employment_status == o.employment_status &&
+          contract_type == o.contract_type &&
+          public_key == o.public_key &&
+          is_fixed_term == o.is_fixed_term &&
+          fixed_term_end_date == o.fixed_term_end_date &&
+          developmental_role_details == o.developmental_role_details
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [start_date, employment_status, contract_type, public_key, is_fixed_term, fixed_term_end_date, developmental_role_details].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(parse_date(value))
+      when :Date
+        Date.parse(parse_date(value))
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :BigDecimal
+        BigDecimal(value.to_s)
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        XeroRuby::PayrollUk.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash(downcase: false)
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        key = downcase ? attr : param
+        hash[key] = _to_hash(value, downcase: downcase)
+      end
+      hash
+    end
+
+    # Returns the object in the form of hash with snake_case
+    def to_attributes
+      to_hash(downcase: true)
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value, downcase: false)
+      if value.is_a?(Array)
+        value.map do |v|
+          v.to_hash(downcase: downcase)
+        end
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.map { |k, v| hash[k] = _to_hash(v, downcase: downcase) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash(downcase: downcase)
+      else
+        value
+      end
+    end
+
+    def parse_date(datestring)
+      if datestring.include?('Date')
+        date_pattern = /\/Date\((-?\d+)(\+\d+)?\)\//
+        original, date, timezone = *date_pattern.match(datestring)
+        date = (date.to_i / 1000)
+        Time.at(date).utc.strftime('%Y-%m-%dT%H:%M:%S%z').to_s
+      elsif /(\d\d\d\d)-(\d\d)/.match(datestring) # handles dates w/out Days: YYYY-MM*-DD
+        Time.parse(datestring + '-01').strftime('%Y-%m-%dT%H:%M:%S').to_s
+      else # handle date 'types' for small subset of payroll API's
+        Time.parse(datestring).strftime('%Y-%m-%dT%H:%M:%S').to_s
+      end
+    end
+  end
+end
diff --git a/lib/xero-ruby/models/payroll_uk/developmental_role_details.rb b/lib/xero-ruby/models/payroll_uk/developmental_role_details.rb
new file mode 100644
index 00000000..d58ef8f6
--- /dev/null
+++ b/lib/xero-ruby/models/payroll_uk/developmental_role_details.rb
@@ -0,0 +1,267 @@
+=begin
+#Xero Payroll UK
+
+#This is the Xero Payroll API for orgs in the UK region.
+
+Contact: api@xero.com
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.3.1
+
+=end
+
+require 'time'
+require 'date'
+
+module XeroRuby::PayrollUk
+  require 'bigdecimal'
+
+  class DevelopmentalRoleDetails
+    # The start date of the developmental role
+    attr_accessor :start_date
+    
+    # The end date of the developmental role
+    attr_accessor :end_date
+    
+    # The developmental role type - \"Apprentice\" is the only supported role currently
+    attr_accessor :developmental_role
+    
+    # The public key of the developmental role. Public key is required if the intention is to edit an existing developmental role. If no key is supplied a new developmental role will be created
+    attr_accessor :public_key
+    
+    # Attribute mapping from ruby-style variable name to JSON key.
+    def self.attribute_map
+      {
+        :'start_date' => :'startDate',
+        :'end_date' => :'endDate',
+        :'developmental_role' => :'developmentalRole',
+        :'public_key' => :'publicKey'
+      }
+    end
+
+    # Attribute type mapping.
+    def self.openapi_types
+      {
+        :'start_date' => :'Date',
+        :'end_date' => :'Date',
+        :'developmental_role' => :'String',
+        :'public_key' => :'String'
+      }
+    end
+
+    # Initializes the object
+    # @param [Hash] attributes Model attributes in the form of hash
+    def initialize(attributes = {})
+      if (!attributes.is_a?(Hash))
+        fail ArgumentError, "The input argument (attributes) must be a hash in `XeroRuby::PayrollUk::DevelopmentalRoleDetails` initialize method"
+      end
+
+      # check to see if the attribute exists and convert string to symbol for hash key
+      attributes = attributes.each_with_object({}) { |(k, v), h|
+        if (!self.class.attribute_map.key?(k.to_sym))
+          fail ArgumentError, "`#{k}` is not a valid attribute in `XeroRuby::PayrollUk::DevelopmentalRoleDetails`. Please check the name to make sure it's valid. List of attributes: " + self.class.attribute_map.keys.inspect
+        end
+        h[k.to_sym] = v
+      }
+
+      if attributes.key?(:'start_date')
+        self.start_date = attributes[:'start_date']
+      end
+
+      if attributes.key?(:'end_date')
+        self.end_date = attributes[:'end_date']
+      end
+
+      if attributes.key?(:'developmental_role')
+        self.developmental_role = attributes[:'developmental_role']
+      end
+
+      if attributes.key?(:'public_key')
+        self.public_key = attributes[:'public_key']
+      end
+    end
+
+    # Show invalid properties with the reasons. Usually used together with valid?
+    # @return Array for valid properties with the reasons
+    def list_invalid_properties
+      invalid_properties = Array.new
+      if @start_date.nil?
+        invalid_properties.push('invalid value for "start_date", start_date cannot be nil.')
+      end
+
+      if @end_date.nil?
+        invalid_properties.push('invalid value for "end_date", end_date cannot be nil.')
+      end
+
+      if @developmental_role.nil?
+        invalid_properties.push('invalid value for "developmental_role", developmental_role cannot be nil.')
+      end
+
+      invalid_properties
+    end
+
+    # Check to see if the all the properties in the model are valid
+    # @return true if the model is valid
+    def valid?
+      return false if @start_date.nil?
+      return false if @end_date.nil?
+      return false if @developmental_role.nil?
+      true
+    end
+
+    # Checks equality by comparing each attribute.
+    # @param [Object] Object to be compared
+    def ==(o)
+      return true if self.equal?(o)
+      self.class == o.class &&
+          start_date == o.start_date &&
+          end_date == o.end_date &&
+          developmental_role == o.developmental_role &&
+          public_key == o.public_key
+    end
+
+    # @see the `==` method
+    # @param [Object] Object to be compared
+    def eql?(o)
+      self == o
+    end
+
+    # Calculates hash code according to all attributes.
+    # @return [Integer] Hash code
+    def hash
+      [start_date, end_date, developmental_role, public_key].hash
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def self.build_from_hash(attributes)
+      new.build_from_hash(attributes)
+    end
+
+    # Builds the object from hash
+    # @param [Hash] attributes Model attributes in the form of hash
+    # @return [Object] Returns the model itself
+    def build_from_hash(attributes)
+      return nil unless attributes.is_a?(Hash)
+      self.class.openapi_types.each_pair do |key, type|
+        if type =~ /\AArray<(.*)>/i
+          # check to ensure the input is an array given that the attribute
+          # is documented as an array but the input is not
+          if attributes[self.class.attribute_map[key]].is_a?(Array)
+            self.send("#{key}=", attributes[self.class.attribute_map[key]].map { |v| _deserialize($1, v) })
+          end
+        elsif !attributes[self.class.attribute_map[key]].nil?
+          self.send("#{key}=", _deserialize(type, attributes[self.class.attribute_map[key]]))
+        end # or else data not found in attributes(hash), not an issue as the data can be optional
+      end
+
+      self
+    end
+
+    # Deserializes the data based on type
+    # @param string type Data type
+    # @param string value Value to be deserialized
+    # @return [Object] Deserialized data
+    def _deserialize(type, value)
+      case type.to_sym
+      when :DateTime
+        DateTime.parse(parse_date(value))
+      when :Date
+        Date.parse(parse_date(value))
+      when :String
+        value.to_s
+      when :Integer
+        value.to_i
+      when :Float
+        value.to_f
+      when :BigDecimal
+        BigDecimal(value.to_s)
+      when :Boolean
+        if value.to_s =~ /\A(true|t|yes|y|1)\z/i
+          true
+        else
+          false
+        end
+      when :Object
+        # generic object (usually a Hash), return directly
+        value
+      when /\AArray<(?<inner_type>.+)>\z/
+        inner_type = Regexp.last_match[:inner_type]
+        value.map { |v| _deserialize(inner_type, v) }
+      when /\AHash<(?<k_type>.+?), (?<v_type>.+)>\z/
+        k_type = Regexp.last_match[:k_type]
+        v_type = Regexp.last_match[:v_type]
+        {}.tap do |hash|
+          value.each do |k, v|
+            hash[_deserialize(k_type, k)] = _deserialize(v_type, v)
+          end
+        end
+      else # model
+        XeroRuby::PayrollUk.const_get(type).build_from_hash(value)
+      end
+    end
+
+    # Returns the string representation of the object
+    # @return [String] String presentation of the object
+    def to_s
+      to_hash.to_s
+    end
+
+    # to_body is an alias to to_hash (backward compatibility)
+    # @return [Hash] Returns the object in the form of hash
+    def to_body
+      to_hash
+    end
+
+    # Returns the object in the form of hash
+    # @return [Hash] Returns the object in the form of hash
+    def to_hash(downcase: false)
+      hash = {}
+      self.class.attribute_map.each_pair do |attr, param|
+        value = self.send(attr)
+        next if value.nil?
+        key = downcase ? attr : param
+        hash[key] = _to_hash(value, downcase: downcase)
+      end
+      hash
+    end
+
+    # Returns the object in the form of hash with snake_case
+    def to_attributes
+      to_hash(downcase: true)
+    end
+
+    # Outputs non-array value in the form of hash
+    # For object, use to_hash. Otherwise, just return the value
+    # @param [Object] value Any valid value
+    # @return [Hash] Returns the value in the form of hash
+    def _to_hash(value, downcase: false)
+      if value.is_a?(Array)
+        value.map do |v|
+          v.to_hash(downcase: downcase)
+        end
+      elsif value.is_a?(Hash)
+        {}.tap do |hash|
+          value.map { |k, v| hash[k] = _to_hash(v, downcase: downcase) }
+        end
+      elsif value.respond_to? :to_hash
+        value.to_hash(downcase: downcase)
+      else
+        value
+      end
+    end
+
+    def parse_date(datestring)
+      if datestring.include?('Date')
+        date_pattern = /\/Date\((-?\d+)(\+\d+)?\)\//
+        original, date, timezone = *date_pattern.match(datestring)
+        date = (date.to_i / 1000)
+        Time.at(date).utc.strftime('%Y-%m-%dT%H:%M:%S%z').to_s
+      elsif /(\d\d\d\d)-(\d\d)/.match(datestring) # handles dates w/out Days: YYYY-MM*-DD
+        Time.parse(datestring + '-01').strftime('%Y-%m-%dT%H:%M:%S').to_s
+      else # handle date 'types' for small subset of payroll API's
+        Time.parse(datestring).strftime('%Y-%m-%dT%H:%M:%S').to_s
+      end
+    end
+  end
+end
diff --git a/lib/xero-ruby/models/payroll_uk/employee.rb b/lib/xero-ruby/models/payroll_uk/employee.rb
index a014446f..3b3bc008 100644
--- a/lib/xero-ruby/models/payroll_uk/employee.rb
+++ b/lib/xero-ruby/models/payroll_uk/employee.rb
@@ -72,6 +72,9 @@ class Employee
     # Whether the employee is an off payroll worker
     attr_accessor :is_off_payroll_worker
     
+    # The employee's contracts
+    attr_accessor :contracts
+    
     class EnumAttributeValidator
       attr_reader :datatype
       attr_reader :allowable_values
@@ -114,7 +117,8 @@ def self.attribute_map
         :'ni_category' => :'niCategory',
         :'ni_categories' => :'niCategories',
         :'national_insurance_number' => :'nationalInsuranceNumber',
-        :'is_off_payroll_worker' => :'isOffPayrollWorker'
+        :'is_off_payroll_worker' => :'isOffPayrollWorker',
+        :'contracts' => :'contracts'
       }
     end
 
@@ -138,7 +142,8 @@ def self.openapi_types
         :'ni_category' => :'NICategoryLetter',
         :'ni_categories' => :'Array<NICategory>',
         :'national_insurance_number' => :'String',
-        :'is_off_payroll_worker' => :'Boolean'
+        :'is_off_payroll_worker' => :'Boolean',
+        :'contracts' => :'Array<Contracts>'
       }
     end
 
@@ -230,6 +235,12 @@ def initialize(attributes = {})
       if attributes.key?(:'is_off_payroll_worker')
         self.is_off_payroll_worker = attributes[:'is_off_payroll_worker']
       end
+
+      if attributes.key?(:'contracts')
+        if (value = attributes[:'contracts']).is_a?(Array)
+          self.contracts = value
+        end
+      end
     end
 
     # Show invalid properties with the reasons. Usually used together with valid?
@@ -309,7 +320,8 @@ def ==(o)
           ni_category == o.ni_category &&
           ni_categories == o.ni_categories &&
           national_insurance_number == o.national_insurance_number &&
-          is_off_payroll_worker == o.is_off_payroll_worker
+          is_off_payroll_worker == o.is_off_payroll_worker &&
+          contracts == o.contracts
     end
 
     # @see the `==` method
@@ -321,7 +333,7 @@ def eql?(o)
     # Calculates hash code according to all attributes.
     # @return [Integer] Hash code
     def hash
-      [employee_id, title, first_name, last_name, date_of_birth, address, email, gender, phone_number, start_date, end_date, payroll_calendar_id, updated_date_utc, created_date_utc, ni_category, ni_categories, national_insurance_number, is_off_payroll_worker].hash
+      [employee_id, title, first_name, last_name, date_of_birth, address, email, gender, phone_number, start_date, end_date, payroll_calendar_id, updated_date_utc, created_date_utc, ni_category, ni_categories, national_insurance_number, is_off_payroll_worker, contracts].hash
     end
 
     # Builds the object from hash
diff --git a/lib/xero-ruby/models/payroll_uk/employment.rb b/lib/xero-ruby/models/payroll_uk/employment.rb
index be5bf8db..717ae1c9 100644
--- a/lib/xero-ruby/models/payroll_uk/employment.rb
+++ b/lib/xero-ruby/models/payroll_uk/employment.rb
@@ -31,6 +31,9 @@ class Employment
     # The employee's NI categories
     attr_accessor :ni_categories
     
+    # The employee's contracts
+    attr_accessor :contracts
+    
     # Attribute mapping from ruby-style variable name to JSON key.
     def self.attribute_map
       {
@@ -38,7 +41,8 @@ def self.attribute_map
         :'start_date' => :'startDate',
         :'employee_number' => :'employeeNumber',
         :'ni_category' => :'niCategory',
-        :'ni_categories' => :'niCategories'
+        :'ni_categories' => :'niCategories',
+        :'contracts' => :'contracts'
       }
     end
 
@@ -49,7 +53,8 @@ def self.openapi_types
         :'start_date' => :'Date',
         :'employee_number' => :'String',
         :'ni_category' => :'NICategoryLetter',
-        :'ni_categories' => :'Array<NICategory>'
+        :'ni_categories' => :'Array<NICategory>',
+        :'contracts' => :'Array<Contracts>'
       }
     end
 
@@ -89,6 +94,12 @@ def initialize(attributes = {})
           self.ni_categories = value
         end
       end
+
+      if attributes.key?(:'contracts')
+        if (value = attributes[:'contracts']).is_a?(Array)
+          self.contracts = value
+        end
+      end
     end
 
     # Show invalid properties with the reasons. Usually used together with valid?
@@ -133,7 +144,8 @@ def ==(o)
           start_date == o.start_date &&
           employee_number == o.employee_number &&
           ni_category == o.ni_category &&
-          ni_categories == o.ni_categories
+          ni_categories == o.ni_categories &&
+          contracts == o.contracts
     end
 
     # @see the `==` method
@@ -145,7 +157,7 @@ def eql?(o)
     # Calculates hash code according to all attributes.
     # @return [Integer] Hash code
     def hash
-      [payroll_calendar_id, start_date, employee_number, ni_category, ni_categories].hash
+      [payroll_calendar_id, start_date, employee_number, ni_category, ni_categories, contracts].hash
     end
 
     # Builds the object from hash
diff --git a/lib/xero-ruby/models/payroll_uk/employment_status.rb b/lib/xero-ruby/models/payroll_uk/employment_status.rb
new file mode 100644
index 00000000..bbb6fef8
--- /dev/null
+++ b/lib/xero-ruby/models/payroll_uk/employment_status.rb
@@ -0,0 +1,37 @@
+=begin
+#Xero Payroll UK
+
+#This is the Xero Payroll API for orgs in the UK region.
+
+Contact: api@xero.com
+Generated by: https://openapi-generator.tech
+OpenAPI Generator version: 4.3.1
+
+=end
+
+require 'time'
+require 'date'
+
+module XeroRuby::PayrollUk
+  class EmploymentStatus
+    EMPLOYEE ||= "Employee".freeze
+    WORKER ||= "Worker".freeze
+    UNSPECIFIED ||= "Unspecified".freeze
+
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def self.build_from_hash(value)
+      new.build_from_hash(value)
+    end
+
+    # Builds the enum from string
+    # @param [String] The enum value in the form of the string
+    # @return [String] The enum value
+    def build_from_hash(value)
+      constantValues = EmploymentStatus.constants.select { |c| EmploymentStatus::const_get(c) == value }
+      raise "Invalid ENUM value #{value} for class #EmploymentStatus" if constantValues.empty?
+      value
+    end
+  end
+end
diff --git a/lib/xero-ruby/version.rb b/lib/xero-ruby/version.rb
index bace4315..02249a08 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: 9.2.0
+The version of the XeroOpenAPI document: 9.3.0
 =end
 
 module XeroRuby
-  VERSION = '12.2.0'
+  VERSION = '12.3.0'
 end