ren-c

It seems there is a very active fork : https://github.com/metaeducation/ren-c The merge request will be a little challenging if someone dares to try : "This branch is 6513 commits ahead, 14 commits behind rebolsource/r3:master"

There’s a few more living derivatives of the OG Rebol; the second of these also has a list of other derivatives and relatives: https://github.com/metaeducation/ren-c https://github.com/Oldes/Rebol3

The best branch to follow is https://github.com/metaeducation/ren-c Additional references: http://rebol.info/ | https://github.com/r3n

Just to clarify it's Rebol 2 (Core/etc) that is closed source. Rebol 3 is open-sourced along with the GUI (R3-GUI).... * https://github.com/rebol/rebol * https://github.com/metaeducation/ren-c (community fork) * https://github.com/zsx/r3-gui (Atronix fork)

There is still a small community working on the open-sourced Rebol 3: https://github.com/metaeducation/ren-c https://github.com/r3n https://forum.rebol.info In fact there was a Rebol conference only last month - http://2019.reb4.me/

Above works, the <json> & <xml> imports are pulled off this remotely hosted common library - https://github.com/r3n/renclib You'll need the Ren/C branch of Rebol 3 for this: * repo - https://github.com/metaeducation/ren-c * pre-built binaries - http://metaeducation.s3.amazonaws.com/index.html

You might also want to look at ren-C (https://github.com/metaeducation/ren-c), a fork of the open sourced Rebol 3 (which isn't an active repo). It can be build with an embedded TCC so you can write C in-line for functions where you need a speed boost.

For Rebol 3 GUI binaries / source code go to Atronix Rebol - http://www.atronixengineering.com/downloads/ For latest community development see Ren/C - https://github.com/metaeducation/ren-c For latest bugs/sugs see - https://github.com/rebol/rebol-issues

In terms of development toolkit and implementation then yes Red could/should be considered the "modern Rebol". However in terms of the language (syntax & semantics) then Rebol 3 is definitely the "modern Rebol". Have a look at Ren/C for the new ideas and the very latest development of the Rebol 3 codebase - https://github.com/metaeducation/ren-c

Rebol is a great language that I've been using for years and still am using now. It was unfortunate it wasn't open sourced soon, but in 2012, we finally saw Apache-licensed version. Carl Sassenrath (also author of AmigaOS) the disappeared from the Rebol development (he's now working on Roku) but the community took over the bug-fixing and development and the language still lives on. For the latest "community" version of Rebol, have a look at [1]. There is also Red language [2] that is heavily inspired by Rebol, but is not only interpreted and can be compiled also. [1] https://github.com/metaeducation/ren-c [2] http://www.red-lang.org