build.gradle dependencies auto updates itself

Question

compile \'com.google.android.gms:play-services:8.3.0\'
compile \'com.android.support:support-v4:22.2.1\'
compile \'com.android.support:design:22.2.1\'

Answer 1

Android Studio doesn't update the dependencies if you specify the version

Example:

compile 'com.google.android.gms:play-services:8.3.0'
compile 'com.android.support:support-v4:22.2.1'
compile 'com.android.support:design:22.2.1'

In this case AS will tell you when there is a newer version without updating them.

If you the + in your dependencies gradle updates with the latest version according to the build.gradle.
For example:

compile 'com.android.support:support-v4:22.2.+'
compile 'com.android.support:support-v4:22.+'
compile 'com.android.support:support-v4:+'

It is a good practice to avoid it.