A patch is a piece of software designed to fix problems with or update a computer program or its supporting data. This includes fixing security vulnerabilities and other bugs and improving the usability or performance.
Patch management is the process of using a strategy and plan of what patches should be applied to which systems at a specified time.
The size of patches may vary from a few kilobytes to hundreds of megabytes — mostly more significant changes imply a larger size, though this also depends on whether the patch includes entire files or only the changed portion(s) of files.
Compared with the initial installation of software, patches usually do not take long to apply.
In the case of operating systems and computer server software, patches have the particularly important role of fixing security holes. To facilitate updates, operating systems often provide automatic or semiautomatic update facilities.
System administrators, tend to put off applying patches until they can verify the stability of the fixes. In the cases of large patches or of significant changes, distributors often limit availability of patches to qualified developers as a beta test.
Iraje team tests the patches first and then ships it at customer locations to ensure that it works in customer environments.
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