2.0
The only 2.x version is the 2.0, and i think most of you remember it. (with the 2.0 Scratch grew A LOT!!)

Notes:
Even though i used 2.0 myself for a year, I find it quite confusing. The Stage is to the left, witch is weird because the Stage was always on the right in EVERY version (except 2.0 and 0.1). The Paint Editor is extremely different, lacking names and tools and with different icons, so animating in there is hard. The blocks are way smaller, and with a different design. But i know lots of you are more comfortable with it.
A thing that i'm gonna say about 2.0, is this

undefined

it's called an Obsolete block. When the 2.0 editor detects a block that isn't in its block palette, it turns like that. It can be obtained through some blocks from 0.x that were later removed (see 0.x for more info) like “beep” and “say nothing”. Though, if the 3.0 editor detects one of these, they're just removed so you can't have an undefined block in 3.0

Format:
The format of Scratch 2.0 is .sb2, meaning that they open with an app called Scratch 2. The format of 2.0 is way more comfortable than 1.x and 0.x because it does not need a .image file. .sb2 can be opened with the 2.0 editor and the 3.0 editor, but NOT with the 1.x and 0.x, because there are new features

Download:
You can download Scratch 2 app here. It is also possible to run it online here. (until flash dies)

1.4
1.4 was the last 1.x version. It is very different.

Notes:
The 1.4 editor has a lot less features than 2.0. The editor had a dark, grey theme. The blocks were pixelated, and with a totally different theme. The Events category didn't exist back then, and all the Events blocks were in the Control category. Yes,

when green flag clicked::control

is so hard to imagine XD. There was also a

forever if <>::control

end

block that i tried to take back but failed
There were also no clones or custom blocks
The Paint Editor was completely different. There was no Vector mode, just Bitmap. Despite these, i find 1.4 more comfortable than 2.0.
About the Obsolete block that I described in 2.0, the Obsolete blocks on 1.x work different. Some blocks that were removed in 0.x DO work on 1.x, other don't.

say nothing

is an example. It turns red (obsolete) but it works.
Other, like “beep”, turn like this

obsolete!::#FF0000

and these don't work.

Format:
The format of Scratch 1.4 is .sb, meaning that they open with an app called Scratch. It could be confusing because the other 1.x also have .sb as format. In fact, when you open a .sb file it shows a small window with something to select. You need to select the 1.4 .image file, so create a folder containing all .image files, all named with their version (like 1.4, 1.1, 0.5, etc…)

Download:
You can download Scratch app here. Or you can run it online here

1.3 & 1.2
YES, I DOWNLOADED THEM TOO!

Notes:
Now i really did download these, and i am testing them. Though, they're super-similar to 1.1, i'm still trying to spot the differences

Format:
The format of Scratch 1.3 and 1.2 is .sb

Download:
You can download Scratch 1.3 here and Scratch 1.2 here. Or you can run Scratch 1.3 online here
and Scratch 1.2 online here

1.1
Yes, this is pretty similar to 1.2 and 1.3, but i'll describe only this

Notes:
Its Paint Editor is equal to 1.4's, there are no Comments (i mean these

block // this is a comment

comments) and there are less blocks. I mean a lot less blocks. The weirdest things here are the green flag and the stop sign, because they're HUGE. Literally, they became smaller in 1.4

Format:
The format of Scratch 1.1 is .sb, (so remember to name 1.1's .image file as something like “1.1”!)

Download:
You can download Scratch 1.1 here. Or you can use it online here

1.0
This version was took from CatsUnited post from down here (same topic), because Scratch Archive fails to download it, but someone luckily brought it to the Wayback machine's archive

Notes: the 1.0 editor is extremely similar to 1.1, the only difference is that there are no cap blocks, so

stop all (::red)::control cap

is actually

stop all (::red)::control stack

(yes, Stop this Script and Stop All were two separate blocks.)
Note that any blocks below the “Stop All” or “Stop Script” block won't actually be executed (see images below)

Format:
the format is .sb (Remember the .image thing)

Download:
You can download 1.0 here, but this time there's no app. You need to download any 1.x version before 1.0. Kinda like the 0.x versions. It is also possible to run it online here

Pre 1.0
The 0.x versions are versions that were never released, just testing. The Pre 1.0 is the latest.

Notes:
The Pre 1.0 is pretty much similar to 1.0/1.1/1.2/1.3 but with another block witch was removed in 1.0, the

say nothing::looks

that is the same as

say []

The Scratch Cat is also weird.

Format:
The format of the 0.x versions is .scratch, so they CANNOT be opened in ANY scratch version. I found out a method to share them, but it's too complicated to explain

Download:
You can download Pre 1.0 here, but this time there's no app. You need to download any 1.x version before any 0.x. The .image file will allow you to make projects and files in 0.x. Or you can use it online here

0.5
0.5 is another 0.x version. It contains quite more “obsolete” stuff that now is GONE

Notes:
The 0.5 contains stuff that now doesn't exist. First, the Stop sign has a white text saying “STOP” on it. Next to the flag, there is a (weird) purple button with a star on it. That button creates a new sprite. There is also a block called

beep::sound

that makes the typical sound of when you press a key when it's useless to. Also, in the “when ___ pressed” block there is another option called “enter”, that is why

when (join [enter] []) key pressed

works and

when (join [shift] []) key pressed

doesn't

Format:
The format for 0.x versions is the same, ALWAYS and the other .image thing too, so i'm not going to use this section anymore

Download:
You can download 0.5 here, but this time there's no app and blah blah blah as i said in Pre 1.0. Or you can use it online here

0.4
0.4 is another version. From now on, the versions are always weirder and weirder

Notes:
The 0.4 is way less similar to our version. Instead of a flag and an octagon, there are two buttons: Start! and Stop!. The blocks's colors are different, and they are a bit less blocky and more square-like. There is also a block called

change strech by ()

that was removed because it was glitchy. Also, it was in the Looks section and in 0.4 the Looks were all red. The reporter and boolean blocks were also squares, not their typical form.

Format:
.scratch with the .image thing-a-doodle

Download:
You can download 0.4 here, but before etc… really it's the same. Or you can use it online here

0.3
0.3, even weirder and with even more obsolete stuff

Notes:
The colors of the blocks are super-different. There isn't even 1 color for every category, in every category the colors are different.
Also, in 0.3 and 0.2, instead of “When start clicked” there is “When i receive go”. In these versions “go” is a message just like any other, but it is automatically sent when the start sign is clicked

Format:
.scratch with the .image thing-a-doodle

Download:
You can download 0.3 here, but before etc… really it's the same. Or you can use it online here

0.2
I did not take 0.2 from the Scratch Wiki. Thanks to speedy_turtle101 for the link!

Notes:
It's very similar to 0.3, except that the color of the editor (not the blocks, the background of the scripts and sprites area) is green, yellow and blue rather than grey. Also, the sounds didn't have their own place and they were with the costumes

Format:
.scratch with the .image thing-a-doodle

Download:
You can download 0.2 here, but before etc… really it's the same. Or you can use it online here

0.1
The 0.1 is the first ever version. It is super-confusing and i still don't know how to use it.

Notes:
The blocks have no block shape, they join when they're near each other, making them similar to magnets. There are NO COSTUMES OR SOUNDS.
The x and y things are confusing and i don't get them. I seriously still don't know how you program there.

Format:
.scratch with the .image thing-a-doodle

Download:
You can download 0.1 here, but before etc… really it's the same. Or you can use it online here

Scratch 2.0

A Comparison between the Scratch Cat in 2.0 and 3.0

Scratch 1.4

The 1.4 Paint Editor

The old “Forever If” block

When 1.4 detects an error, this happens

Some obsolete blocks (“say nothing” and “beep”) in 1.4

Scratch 1.3

Scratch 1.2

Scratch 1.1

Scratch 1.0

The “stop all” block as a stack block (1.0)

The Scratch Cat in 0.x

Scratch Pre 1.0

Scratch 0.5

In 0.5, this button creates a new sprite

Scratch 0.4

The “Green Flag” and “Stop Sign” in 0.4 are different

An example script in 0.4

Scratch 0.3

An example script in 0.3

Scratch 0.2

Scratch 0.1

MeowyTitan08 wrote:

I think you should add images of the editor (especially 0.1 - that one is darn strange)

Col_Cat228 wrote:

I'd like to but i still haven't figured out how to post images on the forums

[img]yourdomain.com/images/photo.png[/img]

when green flag clicked :: control hat
block :: grey
change stretch by [] :: looks

when green flag clicked :: control hat

block :: grey
change stretch by [] :: looks

awesome-llama wrote:

Just saying, the ITopic status is supposed to be given by the Scratch Team, just like having a post being stickied on a sub-forum.

GoldBackthewebAlext wrote:

Col_Cat228 wrote:

I'd like to but i still haven't figured out how to post images on the forums

Hi!
You can click the button with a photo between the Stroke and Link buttons. Example:

[img]yourdomain.com/images/photo.png[/img]

Also, to color the scratch blocks use this code:

when green flag clicked :: control hat
block :: grey
change stretch by [] :: looks

when green flag clicked :: control hat

block :: grey
change stretch by [] :: looks

For more information about BBCode (recommended if you like to format text) click here (Scratch wiki)
If you want advanced information about Scratch Blocks in BBCode (I recommend to check it out, it is veery useful), click here (I really LOVE the “Hacks” section, it's awesome)

when green flag clicked
say [How do I change the file type?] for (2) secs

SquiddyPants wrote:

I made a project on version 0.2, and that uses the file extension .scratch. Is there any way to make that .scratch file a scratch 1.4 or 2 file?

when green flag clicked
say [How do I change the file type?] for (2) secs

fdreerf wrote:

The original post has a lot of personal opinions and subjective information.
I'd recommend only having objective facts.

Col_Cat228 wrote:

fdreerf wrote:

The original post has a lot of personal opinions and subjective information.
I'd recommend only having objective facts.

The Notes section, indeed, is my review and opinions about this

Col_Cat228 wrote:

1.0
Currently i can't find the link to download 1.0, so i use 1.1 instead. It's similar.

ScratchCatHELLO wrote:

Col_Cat228 wrote:

1.0
Currently i can't find the link to download 1.0, so i use 1.1 instead. It's similar.

I've heard that this works. I haven't tried it, but it has a 1.0 download