SUSE Linux Enterprise Server is a Linux-based operating system developed by SUSE. It is designed for servers, mainframes, and workstations but can be installed on desktop computers for testing as well. Major versions are released at an interval of 3–4 years, while minor versions are released about every 18 months. SUSE Linux Enterprise products, including SUSE Linux Enterprise Server, receive more intense testing than the openSUSE community product, with the intention that only mature, stable versions of the included components will make it through to the released enterprise product.
SLES 11 SP4 was released July 16th, 2015, which is developed from a common code base with SUSE Linux Enterprise Desktop and other SUSE Linux Enterprise products.
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