fix/migration 3p11 (#5370)

platform/docs/versioned_docs/version-3.11/migration-guide/3p8-to-3p9/3-DataSources.md

@@ -0,0 +1,41 @@
+---
+id: 3-data-sources
+title: Data Sources
+sidebar_position: 3
+summary: Migration guide for BulkDataURI configuration changes in OHIF 3.9, explaining the transition from a simple boolean flag to a more flexible configuration object with additional control options.
+---
+
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+## BulkDataURI Configuration
+
+We've updated the configuration for BulkDataURI to provide more flexibility and control. This guide will help you migrate from the old configuration to the new one.
+
+### What's Changing?
+
+<Tabs>
+  <TabItem value="Before" label="Before 🕰️" default>
+
+```javascript
+useBulkDataURI: false,
+```
+
+  </TabItem>
+  <TabItem value="After" label="After 🚀">
+
+```javascript
+bulkDataURI: {
+  enabled: true,
+  // Additional configuration **options**
+},
+```
+
+  </TabItem>
+</Tabs>
+
+
+**Additional Notes:**
+- The new configuration allows for more granular control over BulkDataURI behavior.
+- You can now add custom URL prefixing logic using the startsWith and prefixWith properties.
+- This change enables easier correction of retrieval URLs, especially in scenarios where URLs pass through multiple systems.