Some notable areas of improvement in 8u333 included:

While JFR was introduced in Java 8u40, 8u333 brings stability fixes for JFR when running under high load. Specific improvements include:

The "333" build number indicates this update falls into the later phase of Java 8’s public update cycle. After Update 211, Oracle shifted to a new licensing model for commercial use, but (Oracle OpenJDK builds or with a Java SE Subscription for production use).