S5E23 - Java 27 Release Party with Billy Korando

Join Dan Vega and DaShaun Carter for the latest updates from the Spring Ecosystem. In this episode, Dan and DaShaun are joined by Kansas City JUG organizer and Java Developer Advocate, Billy Korando. In this episode, we celebrate the release of Java 27. You can participate in our live stream to ask questions or catch the replay on your preferred podcast platform.

Show Notes:

• JDK 27 - general availability September 15, 2026, with all nine JEPs
• Java 27 Launch Stream - the Java channel's launch-day replay, with Billy's JFR demo and his interview with Roman Kennke
• JEP 534: Compact Object Headers by Default - 10 to 20 percent less heap for most workloads, now on by default
• JEP 523: Make G1 the Default Garbage Collector in All Environments - no more silent fallback to Serial GC in small containers
• JEP 533: Structured Concurrency (Seventh Preview) - the last piece of Project Loom, aiming for final in JDK 28
• JEP 531: Lazy Constants (Third Preview) - set once, later than final allows, with JIT optimizations to match
• JEP 536: JFR In-Process Data Redaction - keeps API keys and passwords out of flight recordings before you hand them to a human or an agent
• Transitioning Java to more frequent security updates - Oracle's plan to move Java security patches from quarterly to monthly, updated September 10, 2026
• Project Babylon - code reflection and GPU programming from Java, DaShaun's pick for what to try next
• S5E22 - Live from KCDC - last week's episode, recorded at the conference Billy helps organize
• Billy Korando on LinkedIn - where Billy says to find him

Resources:

• springofficehours.io - episodes, schedule, community
• Spring Developer on YouTube - join us live every Monday
• Dan Vega
• DaShaun Carter
• The Spring Blog - the news we cover each week