What is Amazon Corretto
Corretto is a reliable build of OpenJDK with the assurance of long-term support provided at no cost to you.
In simple sentence Amazon Corretto is nothing but #OpenJDK. Then how is Corretto different from OpenJDK. Corretto is a distribution of Open JDK with patches included by Amazon that are not yet integrated in the corresponding OpenJDK update projects. They focus on patches that improve performance or stability in OpenJDK, chosen based on Amazon's observations running large services.
Corretto is a build of the Open #Java Development Kit (OpenJDK) with long-term support from Amazon. #Corretto is certified using the Java Technical Compatibility Kit (TCK) to ensure it meets the Java SE standard and is available on Linux, Windows, and macOS. It includes patches from Amazon that have proven useful in running our own services.
LTS - Long Term Support
Corretto is distributed by Amazon under an Open Source license at no cost to you.
Thanks to Amazon, their Corretto project provide a timely help to the biggest community of the programmers. Amazon Corretto is a no-cost, multiplatform, production-ready distribution of the Open Java Development Kit (OpenJDK) that comes with long-term support (LTS). LTS includes Amazon’s commitment to provide performance enhancements and security updates at no cost until at least the specified date for the relevant release version (e.g. May 2026 for Corretto 8). Updates are planned to be released quarterly. Amazon also plans to apply urgent fixes (including security) outside of the regular quarterly cycle when they are available and ready to use.
Corretto OS Support
Patches will include security fixes, performance enhancements, garbage collection scheduling, preventing out-of-memory situations etc...
Corretto 15 installation packages are distributed by Amazon for Linux (glibc), Linux (musl-libc), Windows, and macOS.
Windows builds are supported on versions 7, 8, 10, Server 2008, Server 2012, and Server 2016.
Mac OS X builds are supported on 10.13 (High Sierra) and later.
Linux (glibc) builds are supported on Red Hat Enterprise Linux 6+, CentOS 6+, Ubuntu Linux 14+, Debian Linux 8+, Amazon Linux AMI, and SuSE 12+.
Linux (musl-libc) builds are supported on Alpine Linux 3.12+.
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