# Withdrawing the Primitive Patterns Preview Feature

Source: [Inside Java](https://inside.java/2026/11/11/withdraw-primitive-patterns-preview/) · 2026-11-11 · Languages
Page: https://themorning.dev/story/withdrawing-the-primitive-patterns-preview-feature-69e17578228a69ce
Kind: release · Impact: low

## In brief

- Development of Primitive Types in Patterns, instanceof, and switch has ceased.
- The draft JEP 8393282, which would have been the sixth preview of this feature, will be withdrawn.
- The feature will be removed from JDK 28.

## Why it matters

Developers who planned to use primitive type patterns in instanceof or switch in JDK 28 will not get this preview feature, so code relying on it will need a different approach.

## Versions

- JDK 28

## Timeline

- 2026-11-11: Development ceased; draft JEP 8393282 to be withdrawn and feature removed from JDK 28

## Coverage

- [Withdrawing the Primitive Patterns Preview Feature](https://inside.java/2026/11/11/withdraw-primitive-patterns-preview/) — Inside Java, 2026-11-11

Tags: java, jdk, jep, preview-features, pattern-matching

---

Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Dev – https://themorning.dev