A preview of a foreign function and memory API, which would introduce an API by which Java programs can interoperate with code and data outside the Java runtime.Record patterns is part of Project Amber, an effort to explore and incubate smaller, productivity-oriented Java features. Future plans may call for record patterns to be extended with capabilities such as array patterns and vararg patterns. This proposal builds on pattern matching for instanceof, delivered in JDK 16 in March 2021. Goals of the proposal include extending pattern matching to express more sophisticated, composable data queries while not changing the syntax or semantics of type patterns. Record patterns and type patterns can be nested to enable a declarative, powerful, and composable form of data navigation and processing. A preview of record patterns, to deconstruct record values.This feature is from Project Loom, which introduced a new lightweight concurrency model. Reliability and observability are improved. This concurrency treats multiple tasks running in different threads as a single unit of work, to streamline error handling and cancellation. Structured concurrency, in an incubator phase, is intended to simplify multithreaded programming through a structured concurrency API.The production release follows two release candidates and two rampdown phases, dating back to June.
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