chore: update changelog/whatsnew with API compatibility fix details for 3.98.0

Author: wangmingliang-ms

CHANGELOG.md

@@ -129,6 +129,13 @@ All notable changes to "Azure Toolkit for IntelliJ IDEA" will be documented in t
 - Support IntelliJ IDEA 2026.1 EAP
 - Upgrade Gradle to 9.0 and IntelliJ Platform Plugin to 2.12.0
 
+### Changed
+- Migrate 97 scheduled-for-removal APIs to new IntelliJ Platform APIs
+- Replace deprecated AnActionEvent, ComponentManager, LafManager, Notification APIs
+- Replace deprecated TerminalView, HttpConfigurable, BrowseFolderActionListener APIs
+- Fix registry key conflict for Cosmos DB dbtools module
+- Reduce reflection usage in Scala plugin and Database plugin integration
+
 ## 3.97.3
 - Rename GitHub Copilot app modernization to GitHub Copilot modernization.
 

PluginsAndFeatures/azure-toolkit-for-intellij/azure-intellij-plugin-base/src/main/resources/META-INF/plugin.xml

@@ -21,6 +21,9 @@
         <h4>3.98.0</h4>
         <ul>
           <li>Support IntelliJ IDEA 2026.1 EAP</li>
+          <li>Migrate 97 scheduled-for-removal APIs to new IntelliJ Platform APIs</li>
+          <li>Replace deprecated AnActionEvent, ComponentManager, LafManager, Notification APIs</li>
+          <li>Fix registry key conflict for Cosmos DB dbtools module</li>
         </ul>
         <p>You may get the full change log <a href="https://github.com/Microsoft/azure-tools-for-java/blob/develop/CHANGELOG.md">here</a></p>
     </html>

PluginsAndFeatures/azure-toolkit-for-intellij/azure-intellij-plugin-lib-java/src/main/resources/whatsnew.md

@@ -6,6 +6,13 @@
 - Support IntelliJ IDEA 2026.1 EAP
 - Upgrade Gradle to 9.0 and IntelliJ Platform Plugin to 2.12.0
 
+### Changed
+- Migrate 97 scheduled-for-removal APIs to new IntelliJ Platform APIs
+- Replace deprecated AnActionEvent, ComponentManager, LafManager, Notification APIs
+- Replace deprecated TerminalView, HttpConfigurable, BrowseFolderActionListener APIs
+- Fix registry key conflict for Cosmos DB dbtools module
+- Reduce reflection usage in Scala plugin and Database plugin integration
+
 ## 3.97.3
 - Rename GitHub Copilot app modernization to GitHub Copilot modernization.
 

PluginsAndFeatures/azure-toolkit-for-intellij/src/main/resources/META-INF/plugin.xml

@@ -33,6 +33,12 @@
       <ul>
       <li>Support IntelliJ IDEA 2026.1 EAP</li>
       </ul>
+      <h3 id="changed">Changed</h3>
+      <ul>
+      <li>Migrate 97 scheduled-for-removal APIs to new IntelliJ Platform APIs</li>
+      <li>Replace deprecated AnActionEvent, ComponentManager, LafManager, Notification APIs</li>
+      <li>Fix registry key conflict for Cosmos DB dbtools module</li>
+      </ul>
       <h2 id="3-97-3">3.97.3</h2>
       <ul>
       <li>Rename GitHub Copilot app modernization to GitHub Copilot modernization.</li>