diff --git a/programming/javascript/user-guide/index.md b/programming/javascript/user-guide/index.md
index df43daf0..da0bb599 100644
--- a/programming/javascript/user-guide/index.md
+++ b/programming/javascript/user-guide/index.md
@@ -84,7 +84,7 @@ The complete code of the "Hello World" example is shown below
 ```
 
 <p align="center" style="text-align:center; white-space: normal; ">
-  <a target="_blank" href="https://github.com/Dynamsoft/barcode-reader-javascript-samples/blob/v11.4.20/basics/hello-world.html" title="Code in Github" style="text-decoration:none;">
+  <a target="_blank" href="https://github.com/Dynamsoft/barcode-reader-javascript-samples/blob/v11.4.30/basics/hello-world.html" title="Code in Github" style="text-decoration:none;">
     <img src="https://cdn.jsdelivr.net/npm/simple-icons@3.0.1/icons/github.svg" alt="Code in Github" width="20" height="20" style="width:20px;height:20px;">
   </a>
   &nbsp;
@@ -92,7 +92,7 @@ The complete code of the "Hello World" example is shown below
     <img src="https://cdn.jsdelivr.net/npm/simple-icons@3.0.1/icons/jsfiddle.svg" alt="Run via JSFiddle" width="20" height="20" style="width:20px;height:20px;" >
   </a>
   &nbsp;
-  <a target="_blank" href="https://demo.dynamsoft.com/Samples/DBR/JS/basics/hello-world.html?ver=11.4.20&utm_source=guide" title="Run in Dynamsoft" style="text-decoration:none;">
+  <a target="_blank" href="https://demo.dynamsoft.com/Samples/DBR/JS/basics/hello-world.html?ver=11.4.30&utm_source=guide" title="Run in Dynamsoft" style="text-decoration:none;">
     <img src="https://cdn.jsdelivr.net/npm/@fortawesome/fontawesome-free@6.0.0/svgs/solid/circle-play.svg" alt="Run in Dynamsoft" width="20" height="20" style="width:20px;height:20px;">
   </a>
 </p>
@@ -137,7 +137,7 @@ The complete code of the "Hello World" example is shown below
 
 ### Run the example
 
-You can run the example deployed to [the Dynamsoft Demo Server](https://demo.dynamsoft.com/Samples/DBR/JS/basics/hello-world.html?ver=11.4.20&utm_source=guide) or test it with [JSFiddle code editor](https://jsfiddle.net/DynamsoftTeam/csm2f9wb/). 
+You can run the example deployed to [the Dynamsoft Demo Server](https://demo.dynamsoft.com/Samples/DBR/JS/basics/hello-world.html?ver=11.4.30&utm_source=guide) or test it with [JSFiddle code editor](https://jsfiddle.net/DynamsoftTeam/csm2f9wb/). 
 
 You will be asked to allow access to your camera, after which the video will be displayed on the page. After that, you can point the camera at a barcode to read it.
 
@@ -151,7 +151,7 @@ Alternatively, you can test locally by copying and pasting the code shown above
 >
 > Regarding configuring https on your server, these guides for [nginx](https://nginx.org/en/docs/http/configuring_https_servers.html) / [IIS](https://aboutssl.org/how-to-create-a-self-signed-certificate-in-iis/) / [tomcat](https://dzone.com/articles/setting-ssl-tomcat-5-minutes) / [nodejs](https://nodejs.org/docs/v0.4.1/api/tls.html) might help.
 >
-> If the test doesn't go as expected, you can [contact us](https://www.dynamsoft.com/company/contact/?ver=11.4.20&utm_source=guide&product=dbr&package=js).
+> If the test doesn't go as expected, you can [contact us](https://www.dynamsoft.com/company/contact/?ver=11.4.30&utm_source=guide&product=dbr&package=js).
 
 ## Preparing the SDK
 
@@ -205,7 +205,7 @@ Besides using the public CDN, you can also download the SDK and host its files o
 
 - From the website
 
-  [Download Dynamsoft Barcode Reader JavaScript Package](https://www.dynamsoft.com/barcode-reader/downloads/?ver=11.4.20&utm_source=guide&product=dbr&package=js)
+  [Download Dynamsoft Barcode Reader JavaScript Package](https://www.dynamsoft.com/barcode-reader/downloads/?ver=11.4.30&utm_source=guide&product=dbr&package=js)
 
   The resources are located at path `dynamsoft-barcode-reader-js-{version-number}/dist/`.
 
@@ -253,7 +253,7 @@ To enable the SDK's functionality, you must provide a valid license. Utilize the
 Dynamsoft.License.LicenseManager.initLicense("DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9");
 ```
 
-As previously stated, the key "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9" serves as a test license valid for 24 hours, applicable to any newly authorized browser. To test the SDK further, you can request a 30-day free trial license via the <a href="https://www.dynamsoft.com/customer/license/trialLicense?ver=11.4.20&utm_source=guide&product=dbr&package=js" target="_blank">Request a Trial License</a> link.
+As previously stated, the key "DLS2eyJvcmdhbml6YXRpb25JRCI6IjIwMDAwMSJ9" serves as a test license valid for 24 hours, applicable to any newly authorized browser. To test the SDK further, you can request a 30-day free trial license via the <a href="https://www.dynamsoft.com/customer/license/trialLicense?ver=11.4.30&utm_source=guide&product=dbr&package=js" target="_blank">Request a Trial License</a> link.
 
 > Upon registering a Dynamsoft account and obtaining the SDK package from the official website, Dynamsoft will automatically create a 30-day free trial license and embed the corresponding license key into all the provided SDK samples.