Kotlin 1.0.4 发布了。Kotlin 是一个基于 JVM 的新的编程语言，由 JetBrains 开发。

主要改进内容：

编译器：

• Better type inference for callable expressions

• More efficient bytecode for several cases of when and for expressions

• Better parser recovery after syntax errors

• Fixed several cases when “Cast never succeeds” warning was incorrectly reported 

构建工具：

• Full compatibility with Gradle 2.14 and later.

• Gradle incremental compilation can now track changes between subprojects.

• CLI and Ant builds add the Kotlin reflection library to the classpath by default; use the no-reflect switch to disable. 

IDE 新特性：

• You now have the option to use Kotlin syntax when evaluating expressions and watches in Java files

• New inspection to detect “leaking this” – possible NullPointerException issues caused by access to incompletely initialized data.

• Intention to convert a lambda to a function reference

• Inspection to detect mismatches between Gradle version and Kotlin plugin version

• Many other new intentions, inspections and quickfixes 

点击此处，查看完整改进内容。

下载地址：

• kotlin-compiler-1.0.4.zip

• Source code (zip)

• Source code (tar.gz)