chore: #608 update kotlin and kotlinx versions#611
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Pull request overview
Updates the build toolchain and Kotlin ecosystem dependencies across the root project and standalone Gradle sample builds, primarily by bumping the Gradle wrapper and shared version-catalog entries.
Changes:
- Bump Gradle wrapper from 9.3.1 to 9.4.0 (root + samples).
- Update Kotlin to 2.3.20 and refresh several Kotlin ecosystem dependencies (Ktor, kotlinx-io, kotlinx-serialization, etc.) in version catalogs.
- Update sample-specific version catalogs (e.g., mcp-kotlin, shadow, anthropic) to keep samples building with current dependencies.
Reviewed changes
Copilot reviewed 15 out of 21 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| samples/weather-stdio-server/gradlew | Gradle wrapper script regenerated for 9.4.0. |
| samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.properties | Points sample wrapper distribution to Gradle 9.4.0. |
| samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.jar | Updates the checked-in wrapper JAR for the sample. |
| samples/weather-stdio-server/gradle/libs.versions.toml | Bumps Kotlin/Ktor/logging/shadow versions for the sample. |
| samples/simple-streamable-server/gradlew | Gradle wrapper script regenerated for 9.4.0. |
| samples/simple-streamable-server/gradle/wrapper/gradle-wrapper.properties | Points sample wrapper distribution to Gradle 9.4.0. |
| samples/simple-streamable-server/gradle/libs.versions.toml | Bumps Kotlin/Ktor/shadow versions for the sample. |
| samples/kotlin-mcp-server/gradlew | Gradle wrapper script regenerated for 9.4.0. |
| samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.properties | Points sample wrapper distribution to Gradle 9.4.0. |
| samples/kotlin-mcp-server/gradle/libs.versions.toml | Bumps Kotlin/Ktor/mcp-kotlin/shadow versions for the sample. |
| samples/kotlin-mcp-client/gradlew | Gradle wrapper script regenerated for 9.4.0. |
| samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.properties | Points sample wrapper distribution to Gradle 9.4.0. |
| samples/kotlin-mcp-client/gradle/libs.versions.toml | Bumps anthropic + Kotlin/Ktor/shadow versions for the sample. |
| gradlew.bat | Regenerated/normalized Gradle Windows wrapper script. |
| gradlew | Gradle wrapper script regenerated for 9.4.0. |
| gradle/wrapper/gradle-wrapper.properties | Points root wrapper distribution to Gradle 9.4.0. |
| gradle/wrapper/gradle-wrapper.jar | Updates the checked-in root wrapper JAR. |
| gradle/libs.versions.toml | Updates root version catalog (Kotlin/Ktor/kotlinx-io/serialization/logging). |
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Pull request overview
Updates the Gradle wrapper and Kotlin ecosystem dependency versions across the root build and the standalone samples/* Gradle builds to keep the repo aligned with newer Kotlin/Ktor/kotlinx releases.
Changes:
- Bump Gradle wrapper distribution from 9.3.1 to 9.4.0 (root + samples), including wrapper scripts/jars.
- Bump Kotlin to 2.3.20 and Ktor to 3.3.3 across version catalogs (root + samples).
- Bump kotlinx-io and kotlinx-serialization versions in the root version catalog (plus additional version catalog bumps in samples).
Reviewed changes
Copilot reviewed 15 out of 21 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| samples/weather-stdio-server/gradlew | Regenerated Gradle start script reference for wrapper update. |
| samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.properties | Updates sample wrapper distribution URL to Gradle 9.4.0. |
| samples/weather-stdio-server/gradle/wrapper/gradle-wrapper.jar | Updates sample wrapper JAR content. |
| samples/weather-stdio-server/gradle/libs.versions.toml | Bumps Kotlin/Ktor/Shadow/logging versions for the weather sample. |
| samples/simple-streamable-server/gradlew | Regenerated Gradle start script reference for wrapper update. |
| samples/simple-streamable-server/gradle/wrapper/gradle-wrapper.properties | Updates sample wrapper distribution URL to Gradle 9.4.0. |
| samples/simple-streamable-server/gradle/libs.versions.toml | Bumps Kotlin/Ktor/Shadow versions for the streamable sample. |
| samples/kotlin-mcp-server/gradlew | Regenerated Gradle start script reference for wrapper update. |
| samples/kotlin-mcp-server/gradle/wrapper/gradle-wrapper.properties | Updates sample wrapper distribution URL to Gradle 9.4.0. |
| samples/kotlin-mcp-server/gradle/libs.versions.toml | Bumps Kotlin/Ktor/mcp-kotlin/Shadow versions for the server sample. |
| samples/kotlin-mcp-client/gradlew | Regenerated Gradle start script reference for wrapper update. |
| samples/kotlin-mcp-client/gradle/wrapper/gradle-wrapper.properties | Updates sample wrapper distribution URL to Gradle 9.4.0. |
| samples/kotlin-mcp-client/gradle/libs.versions.toml | Bumps Kotlin/Ktor/Shadow and anthropic client versions for the client sample. |
| gradlew.bat | Wrapper script updated/regenerated (formatting/line ending normalization). |
| gradlew | Regenerated Gradle start script reference for wrapper update. |
| gradle/wrapper/gradle-wrapper.properties | Updates root wrapper distribution URL to Gradle 9.4.0. |
| gradle/wrapper/gradle-wrapper.jar | Updates root wrapper JAR content. |
| gradle/libs.versions.toml | Bumps Kotlin/Ktor/kotlinx-io/serialization and logging versions in the root version catalog. |
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kpavlov
reviewed
Mar 18, 2026
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Let's avoid upgrading tooling and dependencies in a single PR: while some changes are fine, others are questionable.
Let's upgrade Kotlin and Ktor separately, after confirming that it is safe.
gradle/libs.versions.toml
Outdated
| detekt = "2.0.0-alpha.2" | ||
| dokka = "2.1.0" | ||
| kotlin = "2.2.21" | ||
| kotlin = "2.3.20" |
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This might be a breaking change. Did you confirm that at least our internal users are not affected?
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Did you confirm that at least our internal users are not affected?
yes
| distributionBase=GRADLE_USER_HOME | ||
| distributionPath=wrapper/dists | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.0-bin.zip |
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do u think update it on this pr?
or dependabot pr?
| mcp-kotlin = "0.9.0" | ||
| slf4j = "2.0.17" | ||
| shadow = "9.2.2" | ||
| shadow = "9.4.0" |
kpavlov
approved these changes
Mar 20, 2026
| distributionBase=GRADLE_USER_HOME | ||
| distributionPath=wrapper/dists | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip | ||
| distributionUrl=https\://services.gradle.org/distributions/gradle-9.4.0-bin.zip |
kpavlov
changed the title
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bumps:
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Unfortunately, CodeQL does not yet support the latest version of Kotlin
Colses #608