# Kotlin compatibility QuickSheet

DevFeed: [Kotlin compatibility QuickSheet](<https://devfeed.tech/articles/kotlin-compatibility-quicksheet-25433.md>)

Original publisher: [Read original article](<https://blog.mbonnin.net/kotlin-compatibility-quicksheet>)

Author: Martin Bonnin

Published: 2021-11-17T15:22:18Z

Content type: tutorial

Language: en

Sources: [Martin Bonnin's blog](<https://devfeed.tech/sources/martin-bonnin-s-blog.md>)

Topics: [Kotlin](<https://devfeed.tech/topics/kotlin.md>), [Compiler](<https://devfeed.tech/topics/compiler.md>), [Code](<https://devfeed.tech/topics/code.md>)

Tags: [blog-post](<https://devfeed.tech/tags/blog-post.md>), [kotlin](<https://devfeed.tech/tags/kotlin.md>)

## AI overview

A practical guide to Kotlin compatibility across compiler, library, API, language, and metadata versions. It tests projects compiled with Kotlin 1.3, 1.4, and 1.5 against a library compiled with Kotlin 1.6, and discusses using Kotlin 1.6 APIs while supporting older users.

## Source excerpt

Edit: Blog post updated for Kotlin 1.7, see the last paragraph for details. Kotlin 1.6 has just been released 🎉 (blog post). This is great news for everyone in the Kotlin ecosystem. As with every feature release, there are new features, new deprec...