Scala哪个版本取消case class的22元素限制？含PR#2305疑问

Hey there! Let's tackle your two questions about Scala's case class element limit:

1. Which Scala version removed the 22-element limit for case classes? #

Scala 2.11 was the first version to eliminate the long-standing restriction that capped case classes at 22 elements. Before this, hitting the 22-element limit would trigger a compiler error—this constraint was tied to JVM limitations around generic type parameters that Scala had to work around in earlier releases.

2. The PR that removed this limit was merged; which version did this feature land in? #

The PR you mentioned (which addressed the case class element limit) was merged into the development branch for Scala 2.11, so this feature shipped as part of the official Scala 2.11 release. This change let developers define case classes with as many elements as needed, removing a frustrating barrier for building complex data models.

内容的提问来源于stack exchange，提问作者WestCoastProjects