As already mentioned by presenting the download and update of the MAC with OSX El Capitan, Apple has not changed many things, at least if we talk about practical and visible functions. Most of the improvements of the latest version of OSX concern the bug fixes and performance improvements, as well as some hidden features and options that are worth knowing in order to know how to configure them and possibly disable them.
1) Protection System Integrity (SIP) protection system .
Protection System Integrity (SIP) is a new feature of El Capitan that protects system processes and folders so that even a root user (administrator) cannot access them.
The system is therefore protected from malware or other software that can compromise the stability of the system.
This however prevents the use of some applications, which may no longer work on El Capitan.
Although it would be better not to do this, this SIP protection can be disabled like this:
Restart the Mac in recovery mode (holding down Command + R until the Apple logo appears).
Click Utility -> Terminal and run the csrutil disable command.
Restart your Mac and SIP will be activated.
You can reset the protection with the same procedure, using the csrutil enable command.
2) Mail app with tabs .
Anyone who writes multiple emails at once will be happy with this new feature.
You can now open new email tabs by pressing the Command + N keys as you do with the browser.
3) Swipe to delete emails .
As on the iPhone, even on the Mac you can swipe the title of an email using the cursor to quickly delete it.
4) Quickly add events to the calendar by mail .
As in iOS 9, El Capitan now scans emails to find events to automatically add to the calendar.
5) Rename files from the context menu .
As Windows has done since 1995, even on Mac you can now rename a file by right clicking on it, selecting "Rename file".
6) App Store password settings .
If you feel safe with your Mac at home, you can make sure that the App Store password isn't required every time.
7) Copy the path of a file with the right mouse button .
By pressing the right mouse button it is possible, from the Options menu, to copy the path of that file, very useful if you use the Terminal.
8) Show and hide the menu bar .
Open System Preferences -> General to find the "Automatically show and hide menu bar" checkbox.
9) Resume copying a file from where it left off .
10) Sotlight's position remains where it was left .
In El Capitan the search bar can be dragged to where it is most convenient, although this can be confusing.
If you want to keep Spotlight in a predefined position, click on the magnifying glass and move it on the menu bar.
11) Mission Control has changed, but can be restored as before .
If you don't like the way the windows of open programs are previewed, open System Preferences -> Mission Control and check the box to group the windows for an application.
12) Shake the mouse to find out where the cursor is .
When you shake the mouse in El Capitan, it gets bigger so you can easily find it on the screen.
This is useful if you are using a large monitor or if you have vision problems, but I think it is useless on a normal laptop.
To disable this feature, go to System Preferences -> Accessibility -> Display and deselect the option to locate the pointer.
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