Release v3.1.0

Author: alshan

CHANGELOG.md

@@ -5,6 +5,36 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres
 to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). All scales should have the 'format' parameter.
 
+## [3.1.0] - 2026-03-20
+
+### Compatibility
+
+All artifacts were built with the following versions of dependencies:
+- Compose Multiplatform: [1.10.2](https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.10.2)
+- Lets-Plot Kotlin API: [4.13.0](https://github.com/JetBrains/lets-plot-kotlin/releases/tag/v4.13.0)
+- Lets-Plot Multiplatform: [4.9.0](https://github.com/JetBrains/lets-plot/releases/tag/v4.9.0)
+
+### Added
+
+* Interactivity (Desktop):
+
+  - Support for custom toolbar.
+    See a simple example implementation: [SandboxToolbarCmp](https://github.com/JetBrains/lets-plot-compose/blob/main/lets-plot-compose/src/commonMain/kotlin/org/jetbrains/letsPlot/compose/sandbox/SandboxToolbarCmp.kt).
+  - Support for plot _**default interactions**_.
+
+
+  For more details, see [Custom Toolbar and Default Interactions demo](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-desktop/src/main/kotlin/demo/letsPlot/composeDesktop/interact/CustomToolbarDefPanZoomAppMain.kt) in the "lets-plot-compose-demos" repository.
+
+### Changed
+
+* **Artifact changes in the core Lets-Plot library** (v4.9.0):
+
+    [**BREAKING**] Desktop only: removed `plot-image-export` module. \
+    The `org.jetbrains.lets-plot:lets-plot-image-export` artifact is no longer available. \
+    The `PlotImageExport` utility has been moved to the `platf-awt` module: `org.jetbrains.letsPlot.awt.plot.PlotImageExport`. \
+    Add the optional `org.jetbrains.lets-plot:platf-awt` dependency to enable image export functionality on the Desktop platform.
+
+
 ## [3.0.2] - 2025-12-22
 
 ### Compatibility

README.md

@@ -20,9 +20,9 @@ For more details see [Compose multiplatform compatibility and versioning overvie
 
 ## Dependencies
 
-- Compose Multiplatform: [1.9.3](https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.9.3)
-- Lets-Plot Kotlin API: [4.12.1](https://github.com/JetBrains/lets-plot-kotlin/releases/tag/v4.12.1)
-- Lets-Plot Multiplatform: [4.8.2](https://github.com/JetBrains/lets-plot/releases/tag/v4.8.2)
+- Compose Multiplatform: [1.10.2](https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.10.2)
+- Lets-Plot Kotlin API: [4.13.0](https://github.com/JetBrains/lets-plot-kotlin/releases/tag/v4.13.0)
+- Lets-Plot Multiplatform: [4.9.0](https://github.com/JetBrains/lets-plot/releases/tag/v4.9.0)
 
 ### Compose Multiplatform for Desktop
 
@@ -32,40 +32,41 @@ dependencies {
     implementation(compose.components.resources)
 
     // Lets-Plot Kotlin API
-    implementation("org.jetbrains.lets-plot:lets-plot-kotlin-kernel:4.12.1")
+    implementation("org.jetbrains.lets-plot:lets-plot-kotlin-kernel:4.13.0")
 
     // Lets-Plot Multiplatform
-    implementation("org.jetbrains.lets-plot:lets-plot-common:4.8.2")
-    implementation("org.jetbrains.lets-plot:canvas:4.8.2")
-    implementation("org.jetbrains.lets-plot:plot-raster:4.8.2")
-    
-    // Lets-Plot 'image export' (optional - enables exporting to raster formats)
-    implementation("org.jetbrains.lets-plot:lets-plot-image-export:4.8.2")
+    implementation("org.jetbrains.lets-plot:lets-plot-common:4.9.0")
+
+    // Optional: contains the PlotImageExport utility which enables exporting to raster formats.
+    implementation("org.jetbrains.lets-plot:platf-awt:4.9.0")
 
     // Lets-Plot Compose UI
-    implementation("org.jetbrains.lets-plot:lets-plot-compose:3.0.2")
+    implementation("org.jetbrains.lets-plot:lets-plot-compose:3.1.0")
 }
 ```
-See example: [Compose desktop](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-desktop/build.gradle.kts) demo.
+
+See examples: 
+- [Compose desktop](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-desktop/build.gradle.kts)
+- [Compose multiplatform](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-multiplatform/build.gradle.kts)
 
 ### Compose Multiplatform for Android
 
 ```kotlin
 dependencies {
     // Lets-Plot Kotlin API
-    implementation("org.jetbrains.lets-plot:lets-plot-kotlin-kernel:4.12.1")
+    implementation("org.jetbrains.lets-plot:lets-plot-kotlin-kernel:4.13.0")
 
     // Lets-Plot Multiplatform
-    implementation("org.jetbrains.lets-plot:lets-plot-common:4.8.2")
-    implementation("org.jetbrains.lets-plot:canvas:4.8.2")
-    implementation("org.jetbrains.lets-plot:plot-raster:4.8.2")
+    implementation("org.jetbrains.lets-plot:lets-plot-common:4.9.0")
 
     // Lets-Plot Compose UI
-    implementation("org.jetbrains.lets-plot:lets-plot-compose:3.0.2")
+    implementation("org.jetbrains.lets-plot:lets-plot-compose:3.1.0")
 }
 ```
 
-See example: [Android minimal](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-android-min/build.gradle.kts) demo.
+See examples:
+- [Android minimal](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-android-min/build.gradle.kts)
+- [Compose multiplatform](https://github.com/JetBrains/lets-plot-compose-demos/blob/main/compose-multiplatform/build.gradle.kts)
 
 
 ## More Examples

build.gradle.kts

@@ -42,7 +42,7 @@ if (project.file("local.properties").exists()) {
 
 allprojects {
     group = "org.jetbrains.lets-plot"
-    version = "3.0.3-SNAPSHOT"
+    version = "3.1.1-SNAPSHOT"
 //    version = "0.0.0-SNAPSHOT" // for local publishing only
 
     tasks.withType<org.jetbrains.kotlin.gradle.tasks.KotlinCompile>().all {

future_changes.md

@@ -1,11 +1,11 @@
-## [3.0.3] - 2026-mm-dd
+## [3.1.1] - 2026-mm-dd
 
 ### Compatibility
 
 All artifacts were built with the following versions of dependencies:
-- Compose Multiplatform: [1.9.3](https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.9.3)
-- Lets-Plot Kotlin API: [4.12.1](https://github.com/JetBrains/lets-plot-kotlin/releases/tag/v4.12.1)
-- Lets-Plot Multiplatform: [4.8.2](https://github.com/JetBrains/lets-plot/releases/tag/v4.8.2)
+- Compose Multiplatform: [1.10.2](https://github.com/JetBrains/compose-multiplatform/releases/tag/v1.10.2)
+- Lets-Plot Kotlin API: [4.13.0](https://github.com/JetBrains/lets-plot-kotlin/releases/tag/v4.13.0)
+- Lets-Plot Multiplatform: [4.9.0](https://github.com/JetBrains/lets-plot/releases/tag/v4.9.0)
 
 ### Added