SLE-1169: Update RELEASE_NOTES

Author: vnaskos-sonar

org.sonarlint.eclipse.ui/intro/RELEASE_NOTES.html

@@ -20,9 +20,20 @@ <h1>{VERSION}</h1>
 -->
 
 <div>
-	<h2>11.5.1</h2>
+	<h2>11.6</h2>
 	<p>
 		See the <a href="https://github.com/SonarSource/sonarlint-eclipse/releases">GitHub Release page</a>
+		<ul>
+			<li>Update C/C++ analyzer -> 6.66.0</li>
+			<li>Update Python analyzer -> <a href="https://github.com/SonarSource/sonar-python/releases/tag/5.3.0.21704">5.3</a></li>
+		</ul>
+	</p>
+</div>
+
+<div>
+	<h2>11.5.1</h2>
+	<p>
+		See the <a href="https://github.com/SonarSource/sonarlint-eclipse/releases/tag/11.5.1.82815">GitHub Release page</a>
 		<ul>
 			<li>Update SlCore -> <a href="https://github.com/SonarSource/sonarlint-core/releases/tag/10.19.1.80951">10.19.1</a></li>
 		</ul>
@@ -61,21 +72,6 @@ <h2>11.4</h2>
 	</p>
 </div>
 
-<div>
-	<h2>11.3</h2>
-	<p>
-		See the <a href="https://github.com/SonarSource/sonarlint-eclipse/releases/tag/11.3.0.82692">GitHub Release page</a>
-		<ul>
-			<li>Prepare for the availability of the US region.</li>
-			<li><a href="https://sonarsource.atlassian.net/browse/SLE-1125">Improve indexing of JDT project to not exclude base directory</a></li>
-			<li>Update C/C++ analyzer -> 6.64.1</li>
-			<li>Update PHP analyzer -> <a href="https://github.com/SonarSource/sonar-php/releases/tag/3.44.0.12898">3.44</a></li>
-			<li>Update Python analyzer -> <a href="https://github.com/SonarSource/sonar-python/releases/tag/5.1.0.20567">5.1</a></li>
-			<li>Fixed some bugs and regressions.</li>
-		</ul>
-	</p>
-</div>
-
 <div>
 	<h2>Older releases</h2>
 	<p>