Antwort Is Java 17 coming out? Weitere Antworten – When Java 17 is released
21 September 2021
Java 17 was released on 21 September 2021 as the next Long Term Support (LTS) release. This means that its premier support is going to last for another 5 years, and its extended support – 8 years. A list of LTS releases (previous and upcoming) is shown below: Java 7 – released in July 2011.As for Java 18, there is only a six-month time difference between it and Java 17, which means the updates aren't as trascendental or numerous as we've been able to see with other releases. However, Java 18 has improvements in terms of its foreign function memory.The Parallel Garbage Collector(Available in Java 17) is 16.39% faster than the G1 Garbage Collector(Used in Java 11). Migrating from Java 11 to Java 17 can provide many benefits, including new features and improved performance.
Should we use Java 17 : Migrating from Java 8 to Java 17 brings performance enhancements, language improvements, security updates, better tool support, bug fixes, and long-term support. It allows you to take advantage of newer features of Java. So let's explore some of the best reasons to migrate from Java 8 to Java 17.
Is Java 18 out yet
JDK 18 is now available!
Oracle now offers JDK 18 for developers, end-users, and enterprises. Oracle JDK 18 will receive performance, stability and security updates for six-months following the Oracle Critical Patch Update (CPU) schedule as outlined in the Oracle Java SE Support Roadmap.
Is Java 17 free again : You can download the latest OpenJDK release of Java from Oracle, for free, under an open source license from jdk.java.net. Oracle JDK 8 and Oracle JDK 11 are free for Personal, Development and other uses. Oracle JDK 17 and later release are available under a Oracle No-Fee Terms and Conditions License for all users.
I would suggest the latest LTS release, which is Java 17 at the time of writing. Arguments could be made for being able to work in Java 8 and Java 11 (both LTS releases), but not for beginners. Java 19 isn't a huge departure from Java 17, and the differences may not matter.
Is Java 17 more performance-efficient than Java 8 Yes, Java 17 includes numerous performance improvements over Java 8, including optimizations in the JVM, garbage collection enhancements, and new language features designed to write more efficient code.
Why Java 17 is faster
Java 17 includes enhancements in garbage collection algorithms and performance, reducing pause times, improving throughput, and optimizing memory management, thereby increasing application performance and reliability.In terms of throughput, there is not much difference between JDK 8 and JDK 11 in Parallel, and JDK 17 is about 15% higher than JDK 8. JDK 17 in G1 is 18% higher than JDK 8.Not necessarily. Despite introducing new features, Java 17 includes optimizations that, in many cases, improve performance and efficiency compared to Java 8, potentially leading to similar or even reduced resource usage. How can developers stay updated with the changes and improvements introduced in Java 17
Conclusion
Specifically, the improvements over the String class, record types, and pattern matching will make life easier for developers who migrate from Java 8 to Java 17.
Is Java 19 out yet : JDK 19 reached General Availability on 20 September 2022.
Is there a Java 19 : Java 19 (Oracle JDK 19) delivers thousands of performance, stability, and security improvements, including enhancements to the platform that will help developers improve productivity and drive business-wide innovation.
Why Java 17 is free
Oracle OpenJDK releases are under the open source GNU General Public License v2, with the Classpath Exception (GPLv2+CPE) (available since Java 9). Oracle JDK 21 and Oracle JDK 17 and later is available under the Oracle No-Fee Terms and Conditions License which permits free use for all users.
Java 17 provides multiple security updates, including improved TLS 1.3 support, updated cryptographic algorithms, and fixes for potential vulnerabilities found in earlier versions. Upgrading to Java 17 ensures that your application is secure and protected against potential threats.Java 20 was released in March 2022, and it comes with several new features and improvements. The latest version I used for coding was Java 17, so a lot of improvements were added. Let's take a closer look at some of these changes. Records: Available since Java 17, Java 20 introduces some improvements to records.
Should I upgrade from Java 17 to 21 : Along with thousands of performance, stability and security updates, Java 21 delivers dozens of new features and enhancements, 15 of those enhancements are significant ones(each with its own JEPs), covering six preview features and one incubator feature.