diff --git a/.agents/documentation-guidelines.md b/.agents/documentation-guidelines.md
index 914dcc8737..6c9c1bae76 100644
--- a/.agents/documentation-guidelines.md
+++ b/.agents/documentation-guidelines.md
@@ -9,6 +9,6 @@
 ## Avoid widows, runts, orphans, or rivers
 
 Agents should **AVOID** text flow patters illustrated
-on [this diagram](widow-runt-orphan-river.jpg).
+on [this diagram](widow-runt-orphan.jpg).
 
 [todo-comments]: https://github.com/SpineEventEngine/documentation/wiki/TODO-comments
diff --git a/.agents/skills/writer/SKILL.md b/.agents/skills/writer/SKILL.md
new file mode 100644
index 0000000000..5c720265b3
--- /dev/null
+++ b/.agents/skills/writer/SKILL.md
@@ -0,0 +1,51 @@
+---
+name: writer
+description: >
+  Write, edit, and restructure user-facing and developer-facing documentation.
+  Use when asked to create/update docs such as `README.md`, `docs/**`, and
+  other Markdown documentation; 
+  when drafting tutorials, guides, troubleshooting pages, or migration notes; and
+  when improving inline API documentation (KDoc) and examples.
+---
+
+# Write documentation (repo-specific)
+
+## Decide the target and audience
+
+- Identify the target reader: end user, contributor, maintainer, or tooling/automation.
+- Identify the task type: new doc, update, restructure, or documentation audit.
+- Identify the acceptance criteria: “what is correct when the reader is done?”
+
+## Choose where the content should live
+
+- Prefer updating an existing doc over creating a new one.
+- Place content in the most discoverable location:
+  - `README.md`: project entry point and “what is this?”.
+  - `docs/`: longer-form docs (follow existing conventions in that tree).
+  - Source KDoc: API usage, examples, and semantics that belong with the code.
+
+## Follow local documentation conventions
+
+- Follow `.agents/documentation-guidelines.md` and `.agents/documentation-tasks.md`.
+- Use fenced code blocks for commands and examples; format file/dir names as code.
+- Avoid widows, runts, orphans, and rivers by reflowing paragraphs when needed.
+
+## Make docs actionable
+
+- Prefer steps the reader can execute (commands + expected outcome).
+- Prefer concrete examples over abstract descriptions.
+- Include prerequisites (versions, OS, environment) when they are easy to miss.
+- Use consistent terminology (match code identifiers and existing docs).
+
+## KDoc-specific guidance
+
+- For public/internal APIs, include at least one example snippet demonstrating common usage.
+- When converting from Javadoc/inline comments to KDoc:
+  - Remove HTML like `<p>` and preserve meaning.
+  - Prefer short paragraphs and blank lines over HTML formatting.
+
+## Validate changes
+
+- For code changes, follow `.agents/running-builds.md`.
+- For documentation-only changes in Kotlin/Java sources, prefer `./gradlew dokka`.
+
diff --git a/.agents/skills/writer/agents/openai.yaml b/.agents/skills/writer/agents/openai.yaml
new file mode 100644
index 0000000000..44eaa4e241
--- /dev/null
+++ b/.agents/skills/writer/agents/openai.yaml
@@ -0,0 +1,5 @@
+interface:
+  display_name: "Writer"
+  short_description: "Write and update user/developer docs"
+  default_prompt: "Write or revise documentation in this repository (for example: README.md, docs/**, CONTRIBUTING.md, and API documentation/KDoc). Follow local documentation guidelines in .agents/*.md, keep changes concise and actionable, and include concrete examples and commands where appropriate."
+
diff --git a/.agents/skills/writer/assets/templates/doc-page.md b/.agents/skills/writer/assets/templates/doc-page.md
new file mode 100644
index 0000000000..f405b71e15
--- /dev/null
+++ b/.agents/skills/writer/assets/templates/doc-page.md
@@ -0,0 +1,23 @@
+# Title
+
+## Goal
+
+State what the reader will accomplish.
+
+## Prerequisites
+
+- List versions/tools the reader needs.
+
+## Steps
+
+1. Do the first thing.
+2. Do the next thing.
+
+## Verify
+
+Show how the reader can confirm success.
+
+## Troubleshooting
+
+- Common failure: likely cause → fix.
+
diff --git a/.agents/skills/writer/assets/templates/kdoc-example.md b/.agents/skills/writer/assets/templates/kdoc-example.md
new file mode 100644
index 0000000000..fdbd9b6a0d
--- /dev/null
+++ b/.agents/skills/writer/assets/templates/kdoc-example.md
@@ -0,0 +1,11 @@
+````kotlin
+/**
+ * Explain what this API does in one sentence.
+ *
+ * ## Example
+ * ```kotlin
+ * // Show the typical usage pattern.
+ * val result = doThing()
+ * ```
+ */
+````
diff --git a/.agents/skills/writer/assets/templates/kotlin-java-example.md b/.agents/skills/writer/assets/templates/kotlin-java-example.md
new file mode 100644
index 0000000000..5517516f56
--- /dev/null
+++ b/.agents/skills/writer/assets/templates/kotlin-java-example.md
@@ -0,0 +1,13 @@
+{{< code-tabs langs="Kotlin, Java">}}
+
+{{< code-tab lang="Kotlin" >}}
+```kotlin
+```
+{{< /code-tab >}}
+
+{{< code-tab lang="Java" >}}
+```java
+```
+{{< /code-tab >}}
+
+{{< /code-tabs >}}
diff --git a/.agents/widow-runt-orphan.jpg b/.agents/widow-runt-orphan.jpg
new file mode 100644
index 0000000000..284b02a47d
Binary files /dev/null and b/.agents/widow-runt-orphan.jpg differ
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 31f80aec85..5358548ef6 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,4 +1,3 @@
-<?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="EntryPointsManager">
     <list size="7">
@@ -41,4 +40,4 @@
     </option>
   </component>
   <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="corretto-17" project-jdk-type="JavaSDK" />
-</project>
+</project>
\ No newline at end of file
diff --git a/base/src/main/java/io/spine/type/KnownTypes.java b/base/src/main/java/io/spine/type/KnownTypes.java
index 4847fe2f9a..213acbe793 100644
--- a/base/src/main/java/io/spine/type/KnownTypes.java
+++ b/base/src/main/java/io/spine/type/KnownTypes.java
@@ -52,7 +52,6 @@
 import static com.google.common.collect.ImmutableList.toImmutableList;
 import static io.spine.string.Strings.joinByLines;
 import static io.spine.util.Predicates2.distinctBy;
-import static java.lang.String.format;
 import static java.lang.System.lineSeparator;
 import static java.util.Comparator.comparing;
 import static java.util.stream.Collectors.toSet;
diff --git a/buildSrc/build.gradle.kts b/buildSrc/build.gradle.kts
index 227e6d2625..fdcb94aee2 100644
--- a/buildSrc/build.gradle.kts
+++ b/buildSrc/build.gradle.kts
@@ -192,6 +192,15 @@ dependencies {
     ).forEach {
         implementation(it)
     }
+
+    testImplementation(platform("org.junit:junit-bom:5.11.4"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testImplementation("io.kotest:kotest-assertions-core:6.0.4")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.test {
+    useJUnitPlatform()
 }
 
 dependOnBuildSrcJar()
diff --git a/buildSrc/src/main/kotlin/BuildExtensions.kt b/buildSrc/src/main/kotlin/BuildExtensions.kt
index 4122975f62..f7a11e3e04 100644
--- a/buildSrc/src/main/kotlin/BuildExtensions.kt
+++ b/buildSrc/src/main/kotlin/BuildExtensions.kt
@@ -227,6 +227,8 @@ fun Project.configureTaskDependencies() {
         "compileTestFixturesKotlin".dependOn("kspTestFixturesKotlin")
         "javadocJar".dependOn(dokkaGeneratePublicationJavadoc)
         "htmlDocsJar".dependOn(dokkaGenerate)
+
+        "kspTestKotlin".dependOn("launchTestSpineCompiler")
     }
 }
 
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/build/Ksp.kt b/buildSrc/src/main/kotlin/io/spine/dependency/build/Ksp.kt
index b1146e97a5..b81c2b2896 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/build/Ksp.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/build/Ksp.kt
@@ -35,7 +35,7 @@ import io.spine.dependency.Dependency
  */
 @Suppress("unused")
 object Ksp : Dependency() {
-    override val version = "2.3.0"
+    override val version = "2.3.6"
     val dogfoodingVersion = version
     override val group = "com.google.devtools.ksp"
 
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/Base.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/Base.kt
index af6c40095f..b999a75d2c 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/Base.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/Base.kt
@@ -33,8 +33,8 @@ package io.spine.dependency.local
  */
 @Suppress("ConstPropertyName", "unused")
 object Base {
-    const val version = "2.0.0-SNAPSHOT.383"
-    const val versionForBuildScript = "2.0.0-SNAPSHOT.383"
+    const val version = "2.0.0-SNAPSHOT.386"
+    const val versionForBuildScript = "2.0.0-SNAPSHOT.386"
     const val group = Spine.group
     private const val prefix = "spine"
     const val libModule = "$prefix-base"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/BaseTypes.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/BaseTypes.kt
index 23c7da75bd..27147386e1 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/BaseTypes.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/BaseTypes.kt
@@ -33,7 +33,7 @@ package io.spine.dependency.local
  */
 @Suppress("ConstPropertyName")
 object BaseTypes {
-    const val version = "2.0.0-SNAPSHOT.212"
+    const val version = "2.0.0-SNAPSHOT.223"
     const val group = Spine.group
     const val artifact = "spine-base-types"
     const val lib = "$group:$artifact:$version"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/Change.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/Change.kt
index 24365800d3..7809c9cd6c 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/Change.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/Change.kt
@@ -33,7 +33,7 @@ package io.spine.dependency.local
  */
 @Suppress("ConstPropertyName")
 object Change {
-    const val version = "2.0.0-SNAPSHOT.200"
+    const val version = "2.0.0-SNAPSHOT.206"
     const val group = Spine.group
     const val artifact = "spine-change"
     const val lib = "$group:$artifact:$version"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt
index c3ca673886..31cbfb3fac 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/Compiler.kt
@@ -72,7 +72,7 @@ object Compiler : Dependency() {
      * The version of the Compiler dependencies.
      */
     override val version: String
-    private const val fallbackVersion = "2.0.0-SNAPSHOT.035"
+    private const val fallbackVersion = "2.0.0-SNAPSHOT.041"
 
     /**
      * The distinct version of the Compiler used by other build tools.
@@ -81,7 +81,7 @@ object Compiler : Dependency() {
      * transitive dependencies, this is the version used to build the project itself.
      */
     val dogfoodingVersion: String
-    private const val fallbackDfVersion = "2.0.0-SNAPSHOT.035"
+    private const val fallbackDfVersion = "2.0.0-SNAPSHOT.041"
 
     /**
      * The artifact for the Compiler Gradle plugin.
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvm.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvm.kt
index 2e224754f8..2e0b6973b5 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvm.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvm.kt
@@ -39,7 +39,7 @@ typealias CoreJava = CoreJvm
 @Suppress("ConstPropertyName", "unused")
 object CoreJvm {
     const val group = Spine.group
-    const val version = "2.0.0-SNAPSHOT.358"
+    const val version = "2.0.0-SNAPSHOT.372"
 
     const val coreArtifact = "spine-core"
     const val clientArtifact = "spine-client"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvmCompiler.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvmCompiler.kt
index 582272c8a9..344e8a13fc 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvmCompiler.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/CoreJvmCompiler.kt
@@ -26,9 +26,6 @@
 
 package io.spine.dependency.local
 
-import io.spine.dependency.local.CoreJvmCompiler.dogfoodingVersion
-import io.spine.dependency.local.CoreJvmCompiler.version
-
 /**
  * Dependencies on the CoreJvm Compiler artifacts.
  *
@@ -49,12 +46,12 @@ object CoreJvmCompiler {
     /**
      * The version used to in the build classpath.
      */
-    const val dogfoodingVersion = "2.0.0-SNAPSHOT.042"
+    const val dogfoodingVersion = "2.0.0-SNAPSHOT.058"
 
     /**
      * The version to be used for integration tests.
      */
-    const val version = "2.0.0-SNAPSHOT.042"
+    const val version = "2.0.0-SNAPSHOT.058"
 
     /**
      * The ID of the Gradle plugin.
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/ModelCompiler.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/ModelCompiler.kt
index 5f9e54117d..fb4359d891 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/ModelCompiler.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/ModelCompiler.kt
@@ -33,7 +33,7 @@ package io.spine.dependency.local
  */
 @Suppress("ConstPropertyName")
 object ModelCompiler {
-    const val version = "2.0.0-SNAPSHOT.133"
+    const val version = "2.0.0-SNAPSHOT.200"
     const val group = Spine.toolsGroup
     const val artifact = "spine-model-compiler"
     const val lib = "$group:$artifact:$version"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/Time.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/Time.kt
index 4bfe22cdfc..363e8a3056 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/Time.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/Time.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025, TeamDev. All rights reserved.
+ * Copyright 2026, TeamDev. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,18 +26,42 @@
 
 package io.spine.dependency.local
 
+import io.spine.dependency.Dependency
+
 /**
  * Spine Time library.
  *
  * @see <a href="https://github.com/SpineEventEngine/time">spine-time</a>
  */
-@Suppress("ConstPropertyName")
-object Time {
-    const val version = "2.0.0-SNAPSHOT.220"
-    const val group = Spine.group
-    const val artifact = "spine-time"
-    const val lib = "$group:$artifact:$version"
-    const val javaExtensions = "$group:$artifact-java:$version"
-    const val kotlinExtensions = "$group:$artifact-kotlin:$version"
-    const val testLib = "${Spine.toolsGroup}:spine-time-testlib:$version"
+@Suppress(
+    "unused" /* Some subprojects do not use all Time artifacts. */,
+    "ConstPropertyName" /* We use custom convention for artifact properties. */,
+    "MemberVisibilityCanBePrivate" /* The properties are used directly by other subprojects. */,
+)
+object Time : Dependency() {
+    override val group = Spine.group
+    override val version = "2.0.0-SNAPSHOT.234"
+    private const val infix = "spine-time"
+
+    fun lib(version: String): String = "$group:$infix:$version"
+    val lib get() = lib(version)
+
+    fun javaExtensions(version: String): String = "$group:$infix-java:$version"
+    val javaExtensions get() = javaExtensions(version)
+
+    fun kotlinExtensions(version: String): String = "$group:$infix-kotlin:$version"
+    val kotlinExtensions get() = kotlinExtensions(version)
+
+    fun testLib(version: String): String = "${Spine.toolsGroup}:time-testlib:$version"
+    val testLib get() = testLib(version)
+
+    override val modules: List<String>
+        get() = listOf(
+            lib,
+            javaExtensions,
+            kotlinExtensions,
+            testLib
+        ).map {
+            it.split(":").let { (g, artifact) -> "$g:$artifact" }
+        }
 }
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/ToolBase.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/ToolBase.kt
index 1df8dd1f47..872127af22 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/ToolBase.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/ToolBase.kt
@@ -34,8 +34,8 @@ package io.spine.dependency.local
 @Suppress("ConstPropertyName", "unused")
 object ToolBase {
     const val group = Spine.toolsGroup
-    const val version = "2.0.0-SNAPSHOT.371"
-    const val dogfoodingVersion = "2.0.0-SNAPSHOT.371"
+    const val version = "2.0.0-SNAPSHOT.375"
+    const val dogfoodingVersion = "2.0.0-SNAPSHOT.375"
 
     const val lib = "$group:tool-base:$version"
     const val classicCodegen = "$group:classic-codegen:$version"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/local/Validation.kt b/buildSrc/src/main/kotlin/io/spine/dependency/local/Validation.kt
index 92a71d798c..cf429bf432 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/local/Validation.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/local/Validation.kt
@@ -36,7 +36,7 @@ object Validation {
     /**
      * The version of the Validation library artifacts.
      */
-    const val version = "2.0.0-SNAPSHOT.378"
+    const val version = "2.0.0-SNAPSHOT.408"
 
     /**
      * The last version of Validation compatible with ProtoData.
@@ -53,6 +53,9 @@ object Validation {
     fun runtime(version: String) = "$runtimeModule:$version"
     val runtime = runtime(version)
 
+    @Deprecated("Use `runtime` instead.", ReplaceWith("runtime"))
+    const val oldRuntime = "io.spine.validation:spine-validation-java-runtime:2.0.0-SNAPSHOT.354"
+
     const val javaModule = "$group:$prefix-java"
     const val java = "$javaModule:$version"
     const val javaBundleModule = "$group:$prefix-java-bundle"
diff --git a/buildSrc/src/main/kotlin/io/spine/dependency/test/JUnit.kt b/buildSrc/src/main/kotlin/io/spine/dependency/test/JUnit.kt
index 6e9021fb0c..a4962175ae 100644
--- a/buildSrc/src/main/kotlin/io/spine/dependency/test/JUnit.kt
+++ b/buildSrc/src/main/kotlin/io/spine/dependency/test/JUnit.kt
@@ -33,7 +33,7 @@ import io.spine.dependency.DependencyWithBom
 @Suppress("unused", "ConstPropertyName")
 object JUnit : DependencyWithBom() {
 
-    override val version = "6.0.0"
+    override val version = "6.0.3"
     override val group: String = "org.junit"
 
     /**
diff --git a/buildSrc/src/main/kotlin/io/spine/gradle/docs/UpdatePluginVersion.kt b/buildSrc/src/main/kotlin/io/spine/gradle/docs/UpdatePluginVersion.kt
new file mode 100644
index 0000000000..a7f269f94a
--- /dev/null
+++ b/buildSrc/src/main/kotlin/io/spine/gradle/docs/UpdatePluginVersion.kt
@@ -0,0 +1,125 @@
+/*
+ * Copyright 2026, TeamDev. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Redistribution and use in source and/or binary forms, with or without
+ * modification, must retain the above copyright notice and the following
+ * disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package io.spine.gradle.docs
+
+import java.io.File
+import org.gradle.api.DefaultTask
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.provider.Property
+import org.gradle.api.tasks.Input
+import org.gradle.api.tasks.InputDirectory
+import org.gradle.api.tasks.Optional
+import org.gradle.api.tasks.TaskAction
+
+/**
+ * Updates the version of a Gradle plugin in `build.gradle.kts` files.
+ *
+ * The task searches for plugin declarations in the format
+ * `id("plugin-id") version "version-number"` and replaces
+ * the version number with the one found in the version script file.
+ *
+ * @property directory
+ *         The directory to scan recursively for `build.gradle.kts` files.
+ * @property version
+ *         The version number to set for the plugin.
+ * @property pluginId
+ *         The ID of the plugin whose version should be updated.
+ * @property kotlinVersion
+ *         Optional. If set, updates the version of the Kotlin plugin declared with
+ *         `kotlin("…") version "…"` syntax in the `plugins` block.
+ *         This option works in combination with the [version] and [pluginId] properties.
+ */
+abstract class UpdatePluginVersion : DefaultTask() {
+
+    @get:InputDirectory
+    abstract val directory: DirectoryProperty
+
+    @get:Input
+    abstract val version: Property<String>
+
+    @get:Input
+    abstract val pluginId: Property<String>
+
+    @get:Input
+    @get:Optional
+    abstract val kotlinVersion: Property<String>
+
+    /**
+     * Updates plugin versions in build files within the path in the [directory].
+     */
+    @TaskAction
+    fun update() {
+        val rootDir = directory.get().asFile
+
+        val kotlinVersionSet = kotlinVersion.isPresent
+        val kotlinVer = kotlinVersion.orNull
+        val id = pluginId.get()
+        val ver = version.get()
+
+        rootDir.walkTopDown()
+            .filter { it.name == "build.gradle.kts" }
+            .forEach { file ->
+                if (kotlinVersionSet && kotlinVer != null) {
+                    updateKotlinPluginVersion(file, kotlinVer)
+                }
+                updatePluginVersion(file, id, ver)
+            }
+    }
+
+    @Suppress("MemberNameEqualsClassName")
+    private fun updatePluginVersion(file: File, id: String, version: String) {
+        val content = file.readText()
+        // Regex to match: id("plugin-id") version "version-number"
+        val regex = """id\("$id"\)\s+version\s+"([^"]+)"""".toRegex()
+
+        if (regex.containsMatchIn(content)) {
+            val updatedContent = regex.replace(content) {
+                "id(\"$id\") version \"$version\""
+            }
+            if (content != updatedContent) {
+                file.writeText(updatedContent)
+                logger.info("Updated version of '$id' in `${file.absolutePath}`.")
+            }
+        }
+    }
+
+    private fun updateKotlinPluginVersion(file: File, kotlinVersion: String) {
+        val content = file.readText()
+        // Regex to match Kotlin plugin declarations like: kotlin("jvm")    version   "1.9.0"
+        val regex = """kotlin\("([^"]+)"\)\s+version\s+"([^"]+)"""".toRegex()
+        if (regex.containsMatchIn(content)) {
+            val updatedContent = regex.replace(content) { matchResult ->
+                val plugin = matchResult.groupValues[1]
+                "kotlin(\"$plugin\") version \"$kotlinVersion\""
+            }
+            if (content != updatedContent) {
+                file.writeText(updatedContent)
+                logger.info("Updated Kotlin plugin version in `${file.absolutePath}`.")
+            }
+        }
+    }
+}
diff --git a/buildSrc/src/main/kotlin/io/spine/gradle/kotlin/KotlinConfig.kt b/buildSrc/src/main/kotlin/io/spine/gradle/kotlin/KotlinConfig.kt
index f6bed9a066..92b7a38743 100644
--- a/buildSrc/src/main/kotlin/io/spine/gradle/kotlin/KotlinConfig.kt
+++ b/buildSrc/src/main/kotlin/io/spine/gradle/kotlin/KotlinConfig.kt
@@ -27,10 +27,10 @@
 package io.spine.gradle.kotlin
 
 import org.gradle.jvm.toolchain.JavaLanguageVersion
+import org.jetbrains.kotlin.gradle.dsl.JvmDefaultMode
 import org.jetbrains.kotlin.gradle.dsl.KotlinCommonCompilerOptions
 import org.jetbrains.kotlin.gradle.dsl.KotlinJvmCompilerOptions
 import org.jetbrains.kotlin.gradle.dsl.KotlinJvmProjectExtension
-import org.jetbrains.kotlin.gradle.dsl.JvmDefaultMode
 
 /**
  * Sets [Java toolchain](https://kotlinlang.org/docs/gradle.html#gradle-java-toolchains-support)
@@ -56,7 +56,7 @@ fun KotlinJvmProjectExtension.applyJvmToolchain(version: String) =
 @Suppress("unused")
 fun KotlinCommonCompilerOptions.setFreeCompilerArgs() {
     if (this is KotlinJvmCompilerOptions) {
-        jvmDefault.set(JvmDefaultMode.ENABLE)
+        jvmDefault.set(JvmDefaultMode.NO_COMPATIBILITY)
     }
     freeCompilerArgs.addAll(
         listOf(
diff --git a/buildSrc/src/main/kotlin/io/spine/gradle/publish/SpinePublishing.kt b/buildSrc/src/main/kotlin/io/spine/gradle/publish/SpinePublishing.kt
index 480175fef1..37fdf5f7db 100644
--- a/buildSrc/src/main/kotlin/io/spine/gradle/publish/SpinePublishing.kt
+++ b/buildSrc/src/main/kotlin/io/spine/gradle/publish/SpinePublishing.kt
@@ -1,5 +1,5 @@
 /*
- * Copyright 2025, TeamDev. All rights reserved.
+ * Copyright 2026, TeamDev. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -29,6 +29,7 @@
 package io.spine.gradle.publish
 
 import io.spine.gradle.repo.Repository
+import java.util.Locale
 import org.gradle.api.Project
 import org.gradle.api.publish.maven.plugins.MavenPublishPlugin
 import org.gradle.kotlin.dsl.apply
@@ -145,9 +146,10 @@ import org.gradle.kotlin.dsl.findByType
  * @see [artifacts]
  * @see SpinePublishing
  */
-fun Project.spinePublishing(block: SpinePublishing.() -> Unit) {
+fun Project.spinePublishing(block: SpinePublishing.() -> Unit): SpinePublishing {
     apply<MavenPublishPlugin>()
     val name = SpinePublishing::class.java.simpleName
+        .replaceFirstChar { it.lowercase(Locale.getDefault()) }
     val extension = with(extensions) {
         findByType<SpinePublishing>() ?: create(name, project)
     }
@@ -155,6 +157,7 @@ fun Project.spinePublishing(block: SpinePublishing.() -> Unit) {
         block()
         configured()
     }
+    return extension
 }
 
 /**
@@ -182,6 +185,12 @@ open class SpinePublishing(private val project: Project) {
          * The default prefix added before a module name when publishing artifacts.
          */
         const val DEFAULT_PREFIX = "spine-"
+
+        /**
+         * The reserved value that means that no prefix should be added
+         * to a tool module's artifact ID.
+         */
+        const val NONE_PREFIX = "NONE"
     }
 
     private val testJar = TestJar()
@@ -250,10 +259,23 @@ open class SpinePublishing(private val project: Project) {
     lateinit var destinations: Set<Repository>
 
     /**
-     * A prefix to be added before the name of each artifact.
+     * A prefix to be added before the name of each artifact, if it does not belong
+     * to the Maven group `"io.spine.tools"`.
+     *
+     * @see toolArtifactPrefix
      */
     var artifactPrefix: String = DEFAULT_PREFIX
 
+    /**
+     * A prefix to be added before a module name if it belongs to
+     * the Maven group `"io.spine.tools"`.
+     *
+     * Use `"NONE"` if you need no prefix before tool module names.
+     *
+     * @see artifactPrefix
+     */
+    var toolArtifactPrefix: String = ""
+
     /**
      * Allows enabling publishing of [testJar] artifact, containing compilation output
      * of "test" source set.
@@ -389,10 +411,26 @@ open class SpinePublishing(private val project: Project) {
     /**
      * Obtains an artifact ID for the given project.
      *
-     * It consists of a project's name and [prefix][artifactPrefix]:
-     * `<artifactPrefix><project.name>`.
+     * @see artifactPrefix
+     * @see toolArtifactPrefix
      */
-    fun artifactId(project: Project): String = "$artifactPrefix${project.name}"
+    fun artifactId(project: Project): String {
+        if (project.isTool) {
+            check(!toolArtifactPrefix.isEmpty()) {
+                "Artifact prefix cannot be empty for tool modules. " +
+                        "Please set the `toolArtifactPrefix` property in `spinePublishing`. " +
+                        "Use `\"NONE\"` to have an empty prefix for tool modules."
+            }
+            val prefix =
+                if (toolArtifactPrefix == NONE_PREFIX) { "" }
+                else { toolArtifactPrefix }
+            return "$prefix${project.name}"
+        }
+        return "$artifactPrefix${project.name}"
+    }
+
+    private val Project.isTool: Boolean
+        get() = group == "io.spine.tools"
 
     /**
      * Ensures that all modules, marked as included into [testJar] publishing,
diff --git a/buildSrc/src/main/kotlin/io/spine/gradle/repo/Repositories.kt b/buildSrc/src/main/kotlin/io/spine/gradle/repo/Repositories.kt
index de91e33ff6..e6c3f677d9 100644
--- a/buildSrc/src/main/kotlin/io/spine/gradle/repo/Repositories.kt
+++ b/buildSrc/src/main/kotlin/io/spine/gradle/repo/Repositories.kt
@@ -96,11 +96,14 @@ fun RepositoryHandler.spineArtifacts(): MavenArtifactRepository = maven {
 val RepositoryHandler.intellijReleases: MavenArtifactRepository
     get() = maven("https://www.jetbrains.com/intellij-repository/releases")
 
+val RepositoryHandler.jetBrainsCacheRedirector: MavenArtifactRepository
+    get() = maven("https://cache-redirector.jetbrains.com/intellij-dependencies")
+
 val RepositoryHandler.intellijDependencies: MavenArtifactRepository
     get() = maven("https://packages.jetbrains.team/maven/p/ij/intellij-dependencies") {
         content {
-            includeGroupByRegex("com\\.jetbrains\\.intellij.*")
-            includeGroupByRegex("org\\.jetbrains\\.intellij.*")
+            includeGroupByRegex("com\\.jetbrains.*")
+            includeGroupByRegex("org\\.jetbrains.*")
             includeGroupByRegex("com\\.intellij.*")
         }
     }
@@ -129,6 +132,7 @@ fun RepositoryHandler.standardToSpineSdk() {
         }
 
     intellijReleases
+    jetBrainsCacheRedirector
     intellijDependencies
 
     maven {
diff --git a/buildSrc/src/test/kotlin/io/spine/gradle/docs/UpdatePluginVersionTest.kt b/buildSrc/src/test/kotlin/io/spine/gradle/docs/UpdatePluginVersionTest.kt
new file mode 100644
index 0000000000..b34ca71fce
--- /dev/null
+++ b/buildSrc/src/test/kotlin/io/spine/gradle/docs/UpdatePluginVersionTest.kt
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2026, TeamDev. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Redistribution and use in source and/or binary forms, with or without
+ * modification, must retain the above copyright notice and the following
+ * disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package io.spine.gradle.docs
+
+import io.kotest.matchers.shouldBe
+import io.kotest.matchers.string.shouldContain
+import java.io.File
+import org.gradle.testfixtures.ProjectBuilder
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.Test
+import org.junit.jupiter.api.io.TempDir
+
+class UpdatePluginVersionTest {
+
+    @TempDir
+    lateinit var tempDir: File
+
+    private lateinit var buildFile: File
+
+    @BeforeEach
+    fun setUp() {
+        val subDir = File(tempDir, "subproject")
+        subDir.mkdir()
+        buildFile = File(subDir, "build.gradle.kts")
+        buildFile.writeText("""
+            plugins {
+                id("io.spine.validation") version "1.0.0"
+                id("other-plugin") version "0.1.0"
+            }
+        """.trimIndent())
+    }
+
+    @Test
+    fun `update plugin version in build file`() {
+        val project = ProjectBuilder.builder().build()
+        val task = project.tasks.register("updatePluginVersion", UpdatePluginVersion::class.java) {
+            directory.set(tempDir)
+            version.set("2.0.0-TEST")
+            pluginId.set("io.spine.validation")
+        }
+        task.get().update()
+
+        val updatedContent = buildFile.readText()
+        updatedContent shouldContain """id("io.spine.validation") version "2.0.0-TEST""""
+        updatedContent shouldContain """id("other-plugin") version "0.1.0""""
+    }
+
+    @Test
+    fun `update 'kotlin' plugin version when 'kotlinVersion' is set`() {
+        // Overwrite with a file that uses kotlin("jvm") syntax
+        buildFile.writeText(
+            """
+            plugins {
+                kotlin("jvm") version "1.9.10"
+                id("io.spine.validation") version "1.0.0"
+            }
+            """.trimIndent()
+        )
+
+        val project = ProjectBuilder.builder().build()
+        val task = project.tasks.register("updatePluginVersion", UpdatePluginVersion::class.java) {
+            directory.set(tempDir)
+            version.set("2.0.0-TEST")
+            pluginId.set("io.spine.validation")
+            kotlinVersion.set("2.2.21")
+        }
+        task.get().update()
+
+        val updatedContent = buildFile.readText()
+        updatedContent shouldContain """kotlin("jvm") version "2.2.21""""
+        updatedContent shouldContain """id("io.spine.validation") version "2.0.0-TEST""""
+    }
+
+    @Test
+    fun `handle multiple spaces between id and version`() {
+        buildFile.writeText("""
+            plugins {
+                id("io.spine.validation")    version    "1.0.0"
+            }
+        """.trimIndent())
+
+        val project = ProjectBuilder.builder().build()
+        val task = project.tasks.register("updatePluginVersion", UpdatePluginVersion::class.java) {
+            directory.set(tempDir)
+            version.set("2.0.0-TEST")
+            pluginId.set("io.spine.validation")
+        }
+
+        task.get().update()
+
+        val updatedContent = buildFile.readText()
+        updatedContent shouldContain """id("io.spine.validation") version "2.0.0-TEST""""
+    }
+}
diff --git a/buildSrc/src/test/kotlin/io/spine/gradle/publish/SpinePublishingTest.kt b/buildSrc/src/test/kotlin/io/spine/gradle/publish/SpinePublishingTest.kt
new file mode 100644
index 0000000000..37f58e0403
--- /dev/null
+++ b/buildSrc/src/test/kotlin/io/spine/gradle/publish/SpinePublishingTest.kt
@@ -0,0 +1,261 @@
+/*
+ * Copyright 2026, TeamDev. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Redistribution and use in source and/or binary forms, with or without
+ * modification, must retain the above copyright notice and the following
+ * disclaimer.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package io.spine.gradle.publish
+
+import io.kotest.assertions.throwables.shouldThrow
+import io.kotest.matchers.collections.shouldContain
+import io.kotest.matchers.collections.shouldHaveSize
+import io.kotest.matchers.shouldBe
+import io.kotest.matchers.string.shouldContain
+import io.spine.gradle.repo.Repository
+import org.gradle.api.Project
+import org.gradle.kotlin.dsl.create
+import org.gradle.testfixtures.ProjectBuilder
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.api.DisplayName
+import org.junit.jupiter.api.Nested
+import org.junit.jupiter.api.Test
+
+@DisplayName("`SpinePublishing` should")
+class SpinePublishingTest {
+
+    private lateinit var project: Project
+    private lateinit var extension: SpinePublishing
+
+    @BeforeEach
+    fun setUp() {
+        project = ProjectBuilder.builder().build()
+        extension = project.spinePublishing { }
+    }
+
+    @Nested
+    inner class `calculate 'artifactId'` {
+
+        @Test
+        fun `with default prefix for non-tool projects`() {
+            val subproject = ProjectBuilder.builder()
+                .withParent(project)
+                .withName("base")
+                .build()
+            subproject.group = "io.spine"
+
+            extension.artifactId(subproject) shouldBe "spine-base"
+        }
+
+        @Test
+        fun `with custom prefix for non-tool projects`() {
+            extension.artifactPrefix = "custom-"
+            val subproject = ProjectBuilder.builder()
+                .withParent(project)
+                .withName("core")
+                .build()
+            subproject.group = "io.spine"
+
+            extension.artifactId(subproject) shouldBe "custom-core"
+        }
+
+        @Test
+        fun `with tool prefix for tool projects`() {
+            extension.toolArtifactPrefix = "tool-"
+            val toolProject = ProjectBuilder.builder()
+                .withParent(project)
+                .withName("model-compiler")
+                .build()
+            toolProject.group = "io.spine.tools"
+
+            extension.artifactId(toolProject) shouldBe "tool-model-compiler"
+        }
+
+        @Test
+        fun `without prefix for tool projects if 'NONE' is specified`() {
+            extension.toolArtifactPrefix = "NONE"
+            val toolProject = ProjectBuilder.builder()
+                .withParent(project)
+                .withName("proto-js")
+                .build()
+            toolProject.group = "io.spine.tools"
+
+            extension.artifactId(toolProject) shouldBe "proto-js"
+        }
+
+        @Test
+        fun `throwing IllegalStateException if tool prefix is empty for tool projects`() {
+            extension.toolArtifactPrefix = ""
+            val toolProject = ProjectBuilder.builder()
+                .withParent(project)
+                .withName("tool")
+                .build()
+            toolProject.group = "io.spine.tools"
+
+            shouldThrow<IllegalStateException> {
+                extension.artifactId(toolProject)
+            }
+        }
+    }
+
+    @Nested
+    inner class `validate configuration` {
+
+        @Test
+        fun `ensuring 'testJar' inclusions are published`() {
+            extension.modules = setOf("pub-module")
+            extension.testJar {
+                inclusions = setOf("non-pub-module")
+            }
+
+            val exception = shouldThrow<IllegalStateException> {
+                extension.configured()
+            }
+            exception.message!! shouldContain "non-pub-module"
+        }
+
+        @Test
+        fun `ensuring 'customPublishing' is not misused with modules`() {
+            extension.modules = setOf("some-module")
+            extension.customPublishing = true
+
+            val exception = shouldThrow<IllegalStateException> {
+                extension.configured()
+            }
+            exception.message!! shouldContain "customPublishing"
+        }
+
+        @Test
+        fun `ensuring modules are not duplicated in root and subproject`() {
+            val rootProject = project
+            val subproject = ProjectBuilder.builder()
+                .withParent(rootProject)
+                .withName("sub")
+                .build()
+
+            // Root project already has the 'spinePublishing' extension created in 'setUp'.
+            // Let's use it instead of creating a second one with a different name.
+            extension.modules = setOf("sub")
+
+            // Subproject's extension must be named 'SpinePublishing' 
+            // to be found by SpinePublishing::class.java.simpleName
+            val extensionName = SpinePublishing::class.java.simpleName
+            val subExtension = subproject.extensions.create<SpinePublishing>(extensionName, subproject)
+
+            val exception = shouldThrow<IllegalStateException> {
+                subExtension.configured()
+            }
+            exception.message!! shouldContain "already configured in a root project"
+        }
+    }
+
+    @Nested
+    inner class `identify 'projectsToPublish'` {
+
+        @Test
+        fun `as the project itself if no modules are specified`() {
+            val projects = extension.invokeProjectsToPublish()
+            projects shouldHaveSize 1
+            projects shouldContain project
+        }
+
+        @Test
+        fun `as the specified modules`() {
+            val sub1 = ProjectBuilder.builder().withParent(project).withName("sub1").build()
+            val sub2 = ProjectBuilder.builder().withParent(project).withName("sub2").build()
+
+            extension.modules = setOf("sub1", "sub2")
+
+            val projects = extension.invokeProjectsToPublish()
+            projects shouldHaveSize 2
+            projects shouldContain sub1
+            projects shouldContain sub2
+        }
+
+        @Test
+        fun `including modules with custom publishing`() {
+            val sub1 = ProjectBuilder.builder().withParent(project).withName("sub1").build()
+            val sub2 = ProjectBuilder.builder().withParent(project).withName("sub2").build()
+
+            extension.modules = setOf("sub1")
+            extension.modulesWithCustomPublishing = setOf("sub2")
+
+            val projects = extension.invokeProjectsToPublish()
+            projects shouldHaveSize 2
+            projects shouldContain sub1
+            projects shouldContain sub2
+        }
+    }
+
+    @Nested
+    inner class `resolve 'publishTo' repositories` {
+
+        @Test
+        fun `from the extension itself if destinations are initialized`() {
+            val repo = Repository(
+                "test-repo",
+                "https://example.com/release",
+                "https://example.com/snapshot"
+            )
+            extension.destinations = setOf(repo)
+
+            val repos = project.invokePublishTo(extension)
+            repos shouldHaveSize 1
+            repos shouldContain repo
+        }
+
+        @Test
+        fun `from the parent project if not specified locally`() {
+            val repo = Repository(
+                "parent-repo",
+                "https://example.com/release",
+                "https://example.com/snapshot"
+            )
+            // Root project has its extension named 'spinePublishing' from setUp.
+            extension.destinations = setOf(repo)
+
+            val subproject = ProjectBuilder.builder().withParent(project).withName("sub").build()
+            // Subproject has no local 'spinePublishing' extension.
+
+            val repos = subproject.invokePublishTo(extension)
+            repos shouldHaveSize 1
+            repos shouldContain repo
+        }
+    }
+}
+
+/**
+ * Accesses private/internal methods of [SpinePublishing] for testing purposes.
+ */
+private fun SpinePublishing.invokeProjectsToPublish(): Collection<Project> {
+    val method = SpinePublishing::class.java.getDeclaredMethod("projectsToPublish")
+    method.isAccessible = true
+    @Suppress("UNCHECKED_CAST")
+    return method.invoke(this) as Collection<Project>
+}
+
+private fun Project.invokePublishTo(extension: SpinePublishing): Set<Repository> {
+    val method = SpinePublishing::class.java.getDeclaredMethod("publishTo", Project::class.java)
+    method.isAccessible = true
+    @Suppress("UNCHECKED_CAST")
+    return method.invoke(extension, this) as Set<Repository>
+}
diff --git a/config b/config
index 21366d370b..3986ebdd1e 160000
--- a/config
+++ b/config
@@ -1 +1 @@
-Subproject commit 21366d370b26c28690a42b313c172d6dbb4f4d36
+Subproject commit 3986ebdd1ebece40e9433122ab9d46b4253fca03
diff --git a/dependencies.md b/dependencies.md
index 41fc1053f1..e6a0426694 100644
--- a/dependencies.md
+++ b/dependencies.md
@@ -1,6 +1,6 @@
 
 
-# Dependencies of `io.spine:spine-annotations:2.0.0-SNAPSHOT.386`
+# Dependencies of `io.spine:spine-annotations:2.0.0-SNAPSHOT.387`
 
 ## Runtime
 1.  **Group** : org.jetbrains. **Name** : annotations. **Version** : 26.0.2.
@@ -681,7 +681,7 @@
      * **Project URL:** [http://jspecify.org/](http://jspecify.org/)
      * **License:** [The Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
-1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.0.
+1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -689,27 +689,27 @@
      * **Project URL:** [https://junit-pioneer.org/](https://junit-pioneer.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -764,14 +764,14 @@
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Mon Mar 23 19:28:01 WET 2026** using 
+This report was generated on **Fri Apr 03 16:59:29 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine:spine-base:2.0.0-SNAPSHOT.386`
+# Dependencies of `io.spine:spine-base:2.0.0-SNAPSHOT.387`
 
 ## Runtime
 1.  **Group** : com.google.code.findbugs. **Name** : jsr305. **Version** : 3.0.2.
@@ -909,11 +909,11 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
      * **Project URL:** [https://github.com/google/gson](https://github.com/google/gson)
      * **License:** [Apache-2.0](https://www.apache.org/licenses/LICENSE-2.0.txt)
 
-1.  **Group** : com.google.devtools.ksp. **Name** : symbol-processing. **Version** : 2.3.0.
+1.  **Group** : com.google.devtools.ksp. **Name** : symbol-processing. **Version** : 2.3.6.
      * **Project URL:** [https://goo.gle/ksp](https://goo.gle/ksp)
      * **License:** [The Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
-1.  **Group** : com.google.devtools.ksp. **Name** : symbol-processing-api. **Version** : 2.3.0.
+1.  **Group** : com.google.devtools.ksp. **Name** : symbol-processing-api. **Version** : 2.3.6.
      * **Project URL:** [https://goo.gle/ksp](https://goo.gle/ksp)
      * **License:** [The Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
@@ -1533,7 +1533,7 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
      * **Project URL:** [http://jspecify.org/](http://jspecify.org/)
      * **License:** [The Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
-1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.0.
+1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -1541,27 +1541,27 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
      * **Project URL:** [https://junit-pioneer.org/](https://junit-pioneer.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -1616,14 +1616,14 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Mon Mar 23 19:28:01 WET 2026** using 
+This report was generated on **Fri Apr 03 16:59:29 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine:spine-environment:2.0.0-SNAPSHOT.386`
+# Dependencies of `io.spine:spine-environment:2.0.0-SNAPSHOT.387`
 
 ## Runtime
 1.  **Group** : com.google.code.findbugs. **Name** : jsr305. **Version** : 3.0.2.
@@ -2363,7 +2363,7 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
      * **Project URL:** [http://jspecify.org/](http://jspecify.org/)
      * **License:** [The Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
-1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.0.
+1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -2371,27 +2371,27 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
      * **Project URL:** [https://junit-pioneer.org/](https://junit-pioneer.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -2446,14 +2446,14 @@ This report was generated on **Mon Mar 23 19:28:01 WET 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Mon Mar 23 19:28:02 WET 2026** using 
+This report was generated on **Fri Apr 03 16:59:29 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
 
 
 
 
-# Dependencies of `io.spine:spine-format:2.0.0-SNAPSHOT.386`
+# Dependencies of `io.spine:spine-format:2.0.0-SNAPSHOT.387`
 
 ## Runtime
 1.  **Group** : com.fasterxml.jackson. **Name** : jackson-bom. **Version** : 2.20.0.
@@ -3269,7 +3269,7 @@ This report was generated on **Mon Mar 23 19:28:02 WET 2026** using
      * **Project URL:** [http://jspecify.org/](http://jspecify.org/)
      * **License:** [The Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0.txt)
 
-1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.0.
+1.  **Group** : org.junit. **Name** : junit-bom. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -3277,27 +3277,27 @@ This report was generated on **Mon Mar 23 19:28:02 WET 2026** using
      * **Project URL:** [https://junit-pioneer.org/](https://junit-pioneer.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-api. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.0.
+1.  **Group** : org.junit.jupiter. **Name** : junit-jupiter-params. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-commons. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-engine. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
-1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.0.
+1.  **Group** : org.junit.platform. **Name** : junit-platform-launcher. **Version** : 6.0.3.
      * **Project URL:** [https://junit.org/](https://junit.org/)
      * **License:** [Eclipse Public License v2.0](https://www.eclipse.org/legal/epl-v20.html)
 
@@ -3356,6 +3356,6 @@ This report was generated on **Mon Mar 23 19:28:02 WET 2026** using
 
 The dependencies distributed under several licenses, are used according their commercial-use-friendly license.
 
-This report was generated on **Mon Mar 23 19:28:01 WET 2026** using 
+This report was generated on **Fri Apr 03 16:59:29 WEST 2026** using 
 [Gradle-License-Report plugin](https://github.com/jk1/Gradle-License-Report) by Evgeny Naumenko, licensed under 
 [Apache 2.0 License](https://github.com/jk1/Gradle-License-Report/blob/master/LICENSE).
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
index 93bcb6923a..49ad30c59b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -9,7 +9,7 @@ org.gradle.parallel=true
 #org.gradle.caching=true
 
 # Dokka plugin eats more memory than usual. Therefore, all builds should have enough.
-org.gradle.jvmargs=-Xmx4096m -XX:MaxMetaspaceSize=1024m -XX:+UseParallelGC
+org.gradle.jvmargs=-Xmx4096m -XX:MaxMetaspaceSize=1024m -XX:+UseParallelGC -Dfile.encoding=UTF-8
 
 # suppress inspection "UnusedProperty"
 # The below property enables generation of XML reports for tests.
diff --git a/pom.xml b/pom.xml
index d3dee4449b..4927f6f70e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -10,7 +10,7 @@ all modules and does not describe the project structure per-subproject.
  -->
 <groupId>io.spine</groupId>
 <artifactId>base-libraries</artifactId>
-<version>2.0.0-SNAPSHOT.386</version>
+<version>2.0.0-SNAPSHOT.387</version>
 
 <inceptionYear>2015</inceptionYear>
 
@@ -164,7 +164,7 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>org.junit</groupId>
     <artifactId>junit-bom</artifactId>
-    <version>6.0.0</version>
+    <version>6.0.3</version>
     <scope>test</scope>
   </dependency>
   <dependency>
@@ -176,19 +176,19 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>org.junit.jupiter</groupId>
     <artifactId>junit-jupiter-api</artifactId>
-    <version>6.0.0</version>
+    <version>6.0.3</version>
     <scope>test</scope>
   </dependency>
   <dependency>
     <groupId>org.junit.jupiter</groupId>
     <artifactId>junit-jupiter-engine</artifactId>
-    <version>6.0.0</version>
+    <version>6.0.3</version>
     <scope>test</scope>
   </dependency>
   <dependency>
     <groupId>org.junit.jupiter</groupId>
     <artifactId>junit-jupiter-params</artifactId>
-    <version>6.0.0</version>
+    <version>6.0.3</version>
     <scope>test</scope>
   </dependency>
   <dependency>
@@ -200,12 +200,12 @@ all modules and does not describe the project structure per-subproject.
   <dependency>
     <groupId>com.google.devtools.ksp</groupId>
     <artifactId>symbol-processing</artifactId>
-    <version>2.3.0</version>
+    <version>2.3.6</version>
   </dependency>
   <dependency>
     <groupId>com.google.devtools.ksp</groupId>
     <artifactId>symbol-processing-api</artifactId>
-    <version>2.3.0</version>
+    <version>2.3.6</version>
   </dependency>
   <dependency>
     <groupId>com.google.errorprone</groupId>
diff --git a/version.gradle.kts b/version.gradle.kts
index b1478b8ba9..6c1deba47d 100644
--- a/version.gradle.kts
+++ b/version.gradle.kts
@@ -24,4 +24,4 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-val versionToPublish: String by extra("2.0.0-SNAPSHOT.386")
+val versionToPublish: String by extra("2.0.0-SNAPSHOT.387")