From Rosetta Code
This example needs updating due to a modification in the task. Please examine and fix the code if needed, then remove this message.

Insert this message above a programming example using the text {{update|Lang}} or {{update|Lang|Explanation of the problem.}}, where Lang is the programming language used.

This will put the page in Category:Examples needing attention and Category:Lang examples needing attention, and apply Property:example requires attention.

This is a template. There are many others. See Category:RCTemplates for a complete list of templates.