What are the differences between gradle assemble and gradle build tasks?

Question

If I am not wrong gradle assemble does run gradle assembleDebug and gradle assembleRelease, but I believe gradle build al

Answer 1

There is conflicting information about whether build is supposed to depend on assemble.

On one hand, Understanding Gradle: the Build Lifecycle shows a graph of task dependencies from where build and assemble are independent:

In contrast, the Gradle user guide for Java plugin shows that build depends on assemble, at least for Java projects:

This contradicts the graph from "Understanding Gradle." So perhaps the Android plugin implements build/assemble tasks differently from the Java plugin? Or, this behavior changed in some version of Gradle.