the documentation says what version things were ad...

# announcements

[ephemient]

the documentation says what version things were added or deprecated in, e.g. https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/set-of-not-null.html shows that it was added in 1.4, and https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/min.html says it was added in 1.0 and @DeprecatedSinceKotlin("1.4") (meaning it's not yet deprecated in 1.3)