Kotlin 🎉
🚀 Major New Features
🔹 Context-Sensitive Resolution (KT-75315, KT-75316, KT-75061)
🔹 Context Parameters (KT-74546, KT-72639, KT-75017)
🔹 K2 Compiler Enhancements
🔹 -Xjvm-default=all-compatibility is now default (KT-71768)
🔹 New Annotations: @MustUseValue, @IgnorableValue (KT-74804)
🔹 Unnamed Local Variables (KT-74809)
https://github.com/JetBrains/kotlin/releases/tag/v2.2.0-Beta1
2.2.0-Beta1 🚀 Major New Features
🔹 Context-Sensitive Resolution (KT-75315, KT-75316, KT-75061)
🔹 Context Parameters (KT-74546, KT-72639, KT-75017)
🔹 K2 Compiler Enhancements
🔹 -Xjvm-default=all-compatibility is now default (KT-71768)
🔹 New Annotations: @MustUseValue, @IgnorableValue (KT-74804)
🔹 Unnamed Local Variables (KT-74809)
https://github.com/JetBrains/kotlin/releases/tag/v2.2.0-Beta1
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GitHub
Release Kotlin 2.2.0-Beta1 · JetBrains/kotlin
Changelog
Analysis API
KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project
KT-74246 KaVisibilityChecker.isVisible is inefficient with multiple calls on the same u...
Analysis API
KT-75880 K2 Mode: Typealias reference resolves to the underlying class in KMP project
KT-74246 KaVisibilityChecker.isVisible is inefficient with multiple calls on the same u...
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K2 mode is the default in IntelliJ IDEA 2025.1
https://blog.jetbrains.com/idea/2025/04/k2-mode-in-intellij-idea-2025-1-current-state-and-faq/
https://blog.jetbrains.com/idea/2025/04/k2-mode-in-intellij-idea-2025-1-current-state-and-faq/
The JetBrains Blog
K2 Mode in IntelliJ IDEA 2025.1: Current State and FAQ | The IntelliJ IDEA Blog
Starting with IntelliJ IDEA 2025.1, K2 mode, a new implementation of Kotlin support, will be enabled by default. This change is an important step in the ongoing effort to improve Kotlin support in the
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- Kotlin
- Mellum Goes Open Source: A Purpose-Built LLM for Developers, Now on Hugging Face – LLM behind Idea's code completion
- Structuring Ktor Projects Using Domain-Driven Design (DDD) Concepts: A Step-by-Step Guide With a Minimalistic CRM – Architecture for your next Ktor application
2.1.21-RC2 (with just one fix in Kotlin/JS gradle tooling)- Mellum Goes Open Source: A Purpose-Built LLM for Developers, Now on Hugging Face – LLM behind Idea's code completion
- Structuring Ktor Projects Using Domain-Driven Design (DDD) Concepts: A Step-by-Step Guide With a Minimalistic CRM – Architecture for your next Ktor application
The JetBrains Blog
Mellum Goes Open Source: A Purpose-Built LLM for Developers, Now on Hugging Face | The JetBrains Blog
Mellum doesn't pretend to know everything, but it does one thing exceptionally well. We call it a focal model – small, efficient, and built with a specialized focus.
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Kotlin
- `context()` and `contextOf<T>()` added to stdlib for context parameters
- jvm target bytecode v24 support (who cares?)
- Kotlin 1.6 and 1.7 language versions retired
- let's try context-sensitive resolution? `-Xcontext-sensitive-resolution`
https://github.com/JetBrains/kotlin/releases/tag/v2.2.0-Beta2
2.2.0-Beta2- `context()` and `contextOf<T>()` added to stdlib for context parameters
- jvm target bytecode v24 support (who cares?)
- Kotlin 1.6 and 1.7 language versions retired
- let's try context-sensitive resolution? `-Xcontext-sensitive-resolution`
https://github.com/JetBrains/kotlin/releases/tag/v2.2.0-Beta2
YouTrack
Standard library functions to work with context parameters : KT-72866
See https://github.com/Kotlin/KEEP/blob/context-parameters/proposals/context-parameters.md#standard-library-support 1. The "context" function adds a new value to the context, in an anonymous manner. 2. We also provide a generic way to obtain a value by type…
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Kotlin Poet with support of context parameters released
https://github.com/square/kotlinpoet/releases/tag/2.2.0
https://github.com/square/kotlinpoet/releases/tag/2.2.0
GitHub
Release 2.2.0 · square/kotlinpoet
Thanks to @IRus for contributing to this release.
New: Kotlin 2.1.21.
New: KSP 2.1.21-2.0.1.
New: Add support for context parameters. (#2112)
New: Eliminate Guava dependency. (#2110)
New: Migrate ...
New: Kotlin 2.1.21.
New: KSP 2.1.21-2.0.1.
New: Add support for context parameters. (#2112)
New: Eliminate Guava dependency. (#2110)
New: Migrate ...
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Kotlin
Bug fixes and Gradle 8.14 support
https://github.com/JetBrains/kotlin/releases/tag/v2.2.0-RC
2.2.0-RC (2.2.0 will be released @ KotlinConf?)Bug fixes and Gradle 8.14 support
https://github.com/JetBrains/kotlin/releases/tag/v2.2.0-RC
GitHub
Release Kotlin 2.2.0-RC · JetBrains/kotlin
Changelog
Compiler
Fixes
KT-77259 Confusing message for ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD
KT-77219 "@Composable annotation is not applicable" on vararg @Composable () ...
Compiler
Fixes
KT-77259 Confusing message for ANNOTATION_WILL_BE_APPLIED_ALSO_TO_PROPERTY_OR_FIELD
KT-77219 "@Composable annotation is not applicable" on vararg @Composable () ...
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JetBrains still investing in Amper, and aims to make it The Kotlin Build Tool
https://blog.jetbrains.com/amper/2025/05/amper-update-may-2025/
https://blog.jetbrains.com/amper/2025/05/amper-update-may-2025/
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