diff --git a/changelog.md b/changelog.md
index 7391de6..d34f8d6 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,10 @@
 # Changelog
 
+## 2024-07-26 - 4.1.0 - feat(finance)
+Added notes field to IInvoice interface
+
+- Expanded IInvoice interface to include notes field allowing additional notes for invoices.
+
 ## 2024-07-24 - 4.0.65 - fix(finance)
 Added 'type' property to IInvoice interface
 
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index e7513ed..d2d3a9d 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@tsclass/tsclass',
-  version: '4.0.65',
+  version: '4.1.0',
   description: 'Provides TypeScript definitions for various business, financial, networking, content, and other common classes.'
 }
diff --git a/ts/finance/invoice.ts b/ts/finance/invoice.ts
index 096a64b..0ff8363 100644
--- a/ts/finance/invoice.ts
+++ b/ts/finance/invoice.ts
@@ -35,5 +35,6 @@ export interface IInvoice {
       items: IInvoiceItem[];
     };
   };
+  notes: string[];
   paymentOptions?: finance.IPaymentOptionInfo;
 }