What is the difference between `context` and `object`?

Question

In Rebol 3, there are the functions object and context.

What's the purpose of the difference?

Note : for reference, in red, both are the same, and object doesn't exist in rebol 2

Context: no pun intended

Initially, I was wondering why we had context instead of make object!

Now, after learning of the object word used to make objects, I'm curious to know why they are all different and the rationale for having different things to make the same thing.

Note that in rebol3:

object: make function! [[
    "Defines a unique object."
    blk [block!] "Object words and values (modified)"
][
    make object! append blk none
]]

It appends none to the block. Why? Is this just a minor difference? Does it deserve a separate question?

In all 3:

context: make function! [[
    "Defines a unique object."
    blk [block!] "Object words and values (modified)"
][
    make object! blk
]]

P.S. slight differences in construction between the versions

Answer 1

context and object serves same functionality. context is from Rebol2 and I think it is exists in Rebol3 and Red for backward compatibility.

object exists in Rebol3 and Red and almost same (in R3 version it supports object [a: b: c:] style, no big difference)

So you can use any of them. I personally like context.

Answer 2

context was historically introduced in Rebol2 as a shortcut to make object!, and to better signify the intent of using the object to provide a definitionally scoped namespace for organizing user code.

object was added in Rebol3 in order to provide a more natural name for the shortcut and be more useful when constructing the object dynamically using collect-words for example.

Red should be using the Rebol3 object definition, as it provides that handy extra feature.