Kotlin Tooling Immutable Collections 0 5 X Migration

This handles the mechanical rename churn when you upgrade kotlinx.collections.immutable from 0.3.x or 0.4.x to 0.5.x, where every copy-returning method on PersistentList, PersistentMap, and friends got participial names per KEEP-0459 (add becomes adding, removeAt becomes removingAt, put becomes putting). It's compiler-driven: bump the version, recompile, and apply the rename each deprecation warning names. The guide is careful about what not to touch,mutable collections and builder types keep the old names, so you trust the compiler warnings instead of find-replacing blindly. It also covers custom implementers that need to move their overrides to the new names. Narrow but thorough if you're stuck with a few hundred call sites to fix.

Install to Claude Code

npx -y skills add kotlin/kotlin-agent-skills --skill kotlin-tooling-immutable-collections-0-5-x-migration --agent claude-code