This time, talk about patches.
When there are bugs or security breaches, patches are released. After patching, the corresponding bug or security vulnerability can be resolved.
So, what exactly is a "patch"?
"Patch" only a small amount of code, is generally a part of the program to update or append, including bug fixes, security bug fixes, feature additions or changes, and so on. Of course, only "patches" are not operational.
That is, only the "patch" is attached to the original program, the original program can be updated to run.
"Patch" is meant to be "patched with a cloth head." "patch" is to make up for the existing procedures, to plug the loopholes in the program "Cloth head."
You need to use the "patch" command when you hit "patch".
Although the editor can also be patched, it is very dangerous if you are unfamiliar with the editor.
"Patch" is in the network is not developed in the time to come out of things, so that you do not have to download the entire project, download once, as long as the download update is OK.
Now the network environment, although developed, patching is still a good way.