update readmes and Kotlin versions

Author: AndreiKingsley

examples/kotlin-dataframe-plugin-gradle-example/README.md

@@ -1,12 +1,12 @@
-# Kotlin DataFrame Compiler Plugin Example
+# Kotlin DataFrame Compiler Gradle Plugin Example
 
-An IntelliJ IDEA project demonstrating the use of the  
+An IntelliJ IDEA Gradle Kotlin project demonstrating the use of the  
 [Kotlin DataFrame Compiler Plugin](https://kotlin.github.io/dataframe/compiler-plugin.html).
 
-> **Note:** This project uses **dev versions** of the Kotlin and the Kotlin DataFrame plugin.  
-> See [build.gradle.kts](build.gradle.kts) for details.
+We recommend using an up-to-date IntelliJ IDEA for the best experience,
+as well as the latest Kotlin plugin version.
 
-We recommend using an up-to-date IntelliJ IDEA for the best experience.
-For proper functionality in IntelliJ IDEA requires version 2025.2 or newer.
+> [!WARNING]
+> For proper functionality in IntelliJ IDEA requires version 2025.2 or newer.
 
-[Download Kotlin DataFrame Compiler Plugin Example](https://github.com/Kotlin/dataframe/raw/example-projects-archives/kotlin-dataframe-plugin-example.zip)
+[Download Kotlin DataFrame Compiler Plugin Gradle Example](https://github.com/Kotlin/dataframe/raw/example-projects-archives/kotlin-dataframe-plugin-example.zip)

examples/kotlin-dataframe-plugin-gradle-example/build.gradle.kts

@@ -3,7 +3,7 @@ import org.jlleitschuh.gradle.ktlint.KtlintExtension
 plugins {
     id("org.jlleitschuh.gradle.ktlint") version "12.3.0"
 
-    val kotlinVersion = "2.3.0-RC2"
+    val kotlinVersion = "2.3.0-RC3"
     kotlin("jvm") version kotlinVersion
     // Add the Kotlin DataFrame Compiler plugin of the same version as the Kotlin plugin.
     kotlin("plugin.dataframe") version kotlinVersion

examples/kotlin-dataframe-plugin-maven-example/README.md

@@ -0,0 +1,10 @@
+# Kotlin DataFrame Compiler Maven Plugin Example
+
+An IntelliJ IDEA Maven Kotlin project demonstrating the use of the  
+[Kotlin DataFrame Compiler Plugin](https://kotlin.github.io/dataframe/compiler-plugin.html).
+
+We recommend using an up-to-date IntelliJ IDEA for the best experience,
+as well as the latest Kotlin plugin version.
+
+> [!WARNING]
+> For proper functionality in IntelliJ IDEA requires version 2025.3 or newer.

examples/kotlin-dataframe-plugin-maven-example/pom.xml

@@ -28,7 +28,7 @@
             <plugin>
                 <groupId>org.jetbrains.kotlin</groupId>
                 <artifactId>kotlin-maven-plugin</artifactId>
-                <version>2.3.0-RC</version>
+                <version>2.3.0-RC3</version>
                 <configuration>
                     <compilerPlugins>
                         <plugin>kotlin-dataframe</plugin>
@@ -39,7 +39,7 @@
                     <dependency>
                         <groupId>org.jetbrains.kotlin</groupId>
                         <artifactId>kotlin-maven-dataframe</artifactId>
-                        <version>2.3.0-RC</version>
+                        <version>2.3.0-RC3</version>
                     </dependency>
                 </dependencies>
                 <executions>
@@ -82,7 +82,7 @@
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
             <artifactId>kotlin-test-junit5</artifactId>
-            <version>2.3.0-RC</version>
+            <version>2.3.0-RC3</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -109,4 +109,4 @@
         </dependency>
     </dependencies>
 
-</project>
+</project>