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kotlinlang

After updating to compose 1.4.5 compiler and kotlin 1.8.20, seems like Java 11 is not enough anymore as I am getting UnsupportedClassVersionError. Is this known and expected? :thinking_face:

Seems related - <https://kotlinlang.slack.com/archives/CJLTWPH7S/p1681323339179339?thread_ts=1681323339.179339&amp;cid=CJLTWPH7S|https://kotlinlang.slack.com/archives/CJLTWPH7S/p1681323339179339?thread_ts=1681323339.179339&amp;cid=CJLTWPH7S>

Dumb question but what are the biggest benefits to dropping support? What were the main pain points?

We gotta keep you on your toes. :sweat_smile::rolling_on_the_floor_laughing:

More seriously though, I don't think there were any real benefits to dropping support.  Our build team was just doing some routine upgrades, and given that Java17 is already a couple of years old, it wasn't clear anyone would notice.  Anyway, that's why we're adding back support for Java11.

What would I need to do to update to Java 17? Am I missing something?
```$ ./gradlew --version
[...]
JVM:          17.0.6 (Homebrew 17.0.6+0)```
but still getting the same error when trying to use 1.4.5 :thinking_face:

EDIT: Figured it out. The project was set to 11 :sweat_smile:

Seems also like Java 11 (or I guess other &lt;17) is the default on GitHub actions. If so this might be even more annoying. I haven’t delved too much in this but I had a GitHub action that didn’t specify any step to setup Java and it was working before. Then I had to add a new step to setup Java version.

Any concerns in regard to android device compatibility? As far as I understand at the end everything gets desugared back to java 11 when building an APK so it should be fine?

Compose Compiler 1.4.6 with support for Java11 toolchain is released: <https://developer.android.com/jetpack/androidx/releases/compose-compiler#1.4.6>