feat: Kotlin 2.3.0-Beta1 release (#5097)

Author: danil-pavlov

docs/kr.tree

@@ -33,7 +33,7 @@
 		<toc-element topic="competitive-programming.md"/>
 	</toc-element>
 	<toc-element toc-title="What's new in Kotlin">
-		<toc-element hidden="true" toc-title="Kotlin 2.2.20-RC2" topic="whatsnew-eap.md"/>
+		<toc-element toc-title="Kotlin 2.3.0-Beta1" topic="whatsnew-eap.md"/>
         <toc-element toc-title="Kotlin 2.2.20" accepts-web-file-names="whatsnew.html" topic="whatsnew2220.md"/>
         <toc-element toc-title="Kotlin 2.2.0" topic="whatsnew22.md"/>
 		<toc-element toc-title="Earlier versions">

docs/topics/configure-build-for-eap.md

@@ -1,11 +1,9 @@
 [//]: # (title: Configure your build for EAP)
 
 <tldr>
-    <p>No preview versions are currently available.</p>
-    <!--
+    <!-- <p>No preview versions are currently available.</p> -->
     <p>Latest Kotlin EAP release: <strong>%kotlinEapVersion%</strong></p>
     <p><a href="eap.md#build-details">Explore Kotlin EAP release details</a></p>
-    -->
 </tldr>
 
 To configure your build to use the EAP version of Kotlin, you need to: 

docs/topics/eap.md

@@ -1,10 +1,8 @@
 [//]: # (title: Participate in the Kotlin Early Access Preview)
 
-<!--
 <tldr>
     <p>Latest Kotlin EAP release: <strong>%kotlinEapVersion%</strong></p>
 </tldr>
--->
 
 You can participate in the Kotlin Early Access Preview (EAP) to try out the latest Kotlin features before they are released.
 
@@ -45,15 +43,24 @@ In this channel, you can also get notifications about new EAP builds.
   using the new cool features with the community.
 
 ## Build details
-<!--
- _No preview versions are currently available._ 
--->
+
+<!-- _No preview versions are currently available._ -->
 
 <table>
     <tr>
         <th>Build info</th>
         <th>Build highlights</th>
     </tr>
+    <tr>
+        <td><strong>2.3.0-Beta1</strong>
+            <p>Released: <strong>October 7, 2025</strong></p>
+            <p><a href="https://github.com/JetBrains/kotlin/releases/tag/v2.3.0-Beta1" target="_blank">Release on GitHub</a></p>
+        </td>
+        <td>
+            <p>A language release with previews of new features and tooling updates.</p>
+            <p>For more details, please refer to the <a href="https://github.com/JetBrains/kotlin/releases/tag/v2.3.0-Beta1">changelog</a> or <a href="whatsnew-eap.md">What's new in Kotlin 2.3.0-Beta1</a>.</p>
+        </td>
+    </tr>
     <tr>
         <td><strong>2.2.21-RC</strong>
             <p>Released: <strong>October 7, 2025</strong></p>
@@ -62,6 +69,6 @@ In this channel, you can also get notifications about new EAP builds.
         <td>
             <p>A tooling release containing support for Xcode 26, along with other improvements and bug fixes.</p>
             <p>For more details, please refer to the <a href="https://github.com/JetBrains/kotlin/releases/tag/v2.2.21-RC">changelog</a> or <a href="whatsnew-eap.md">What's new in Kotlin 2.2.21-RC</a>.</p>
-        </td>
+    </td>
     </tr>
 </table>

docs/topics/native/native-binary-options.md

@@ -72,7 +72,7 @@ kotlinc-native main.kt -Xbinary=enableSafepointSignposts=true
         <td width="110">Status</td>
     </tr>
     <tr>
-        <td><a href="whatsnew-eap.md#smaller-binary-size-for-release-binaries"><code>smallBinary</code></a></td>
+        <td><a href="whatsnew2220.md#smaller-binary-size-for-release-binaries"><code>smallBinary</code></a></td>
         <td>
             <list>
                 <li><code>true</code></li>
@@ -83,7 +83,7 @@ kotlinc-native main.kt -Xbinary=enableSafepointSignposts=true
         <td>Experimental since 2.2.20</td>
     </tr>
     <tr>
-        <td><a href="whatsnew-eap.md#support-for-stack-canaries-in-binaries"><code>stackProtector</code></a></td>
+        <td><a href="whatsnew2220.md#support-for-stack-canaries-in-binaries"><code>stackProtector</code></a></td>
         <td>
             <list>
                 <li><code>yes</code></li>