The following JEP of scope "SE" has been Proposed to Target for Java SE 13: 354: Switch Expressions (Preview) https://openjdk.java.net/jeps/354 The announced deadline for feedback to jdk-dev is Thu 6 Jun 23:00 UTC: https://mail.openjdk.java.net/pipermail/jdk-dev/2019-May/003038.html Thanks, Iris