difference between android gradle plugin and gradle

Question

Android Studio 3.2 Canary 5
Build #AI-173.4630681, built on March 3, 2018
JRE: 1.8.0_152-release-1136-b01 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Linux 4.15.4-300.fc27.x86_64

I have just started a new project and when I sync'd I got this dialog box.

I am just wondering what is the difference between the Android Gradle Project and Gradle.

How would I upgrade to Gradle to version 4.5?
What is the purpose of both of these?

Many thanks in advance

Answer 1

Gradle is the build system.

You can use it with a lot of plugins. One of these is the Android Gradle plugin.
It is used to provide processes and configurable settings that are specific to building and testing Android applications.