In this commit, one of Go’s widely used packages, container/vector was deleted. It may be confusing at first, but in reality you can achieve everything in container/vector with slice tricks. There’s a list of slice tricks here, but I’ll reproduce them on this blog.
//AppendVector
a = append(a, b...)
//Copy
b = make([]T, len(a))
copy(b, a)
//Cut
a = append(a[:i], a[j:]...)
//Delete
a = append(a[:i], a[i+1:]...)
//Expand
a = append(a[:i], append(make([]T, j), a[i:]...)...)
//Extend
a = append(a, make([]T, j)...)
//Insert
a = append(a[:i], append([]T{x}, a[i:]...)...)
//InsertVector
a = append(a[:i], append(b, a[i:]...)...)
//Pop
x = a[len(a)-1]
a = a[:len(a)-1]
//Push
a = append(a, x)
A lot of my programs used vector.Push, and converting everything to use append made everything a lot cleaner.