Hi there,

Can you relicense this great work under LPGLv3 so it can actually be used by Wow and Wow addons ? (unless somehow I misinterpret the GPL but it seems pretty clear I am afraid?)

Thanks!

Though I do not think GPL will affect WoW addon to use LibDeflate, I can change the license to LGPLv3, to make it used by more people

The main reason that LibDeflate was licensed under GPLv3, because LibCompress (https://www.wowace.com/projects/libcompress) is also GPLv2, and I do not think this affects the WoW addon development.

The official WoW addon policy (https://us.forums.blizzard.com/en/wow/t/ui-add-on-development-policy/24534) requires

Add-on code must be completely visible.
The programming code of an add-on must in no way be hidden or obfuscated, and must be freely accessible to and viewable by the general public.

This means that the Lua code running inside World of Warcraft must be open source, although you could obfuscate the source code to make it hard to read (Edit: Blizzard says "no way be hidden or obfuscated", but there are indeed several addons operated by company obfuscate their source code. Never heard Blizzard will ban those addon) . You could make it close-source for helper programs not written in Lua that running outside World of Warcraft, similar to a database auto updater, which is not affected by GPLv3 even if you use any Lua GPL library. In a word, WoW addon policy requires addon Lua code to be "GPL" anyway, so GPL is not a problem for you to use GPL library.

The helper programs in the repository of LibDeflate, written by others, to help to test the correctness of LibDeflate should be used with their original licenses.

P.S.: I am not playing WoW for more than a year, sorry for very late reply. Trying to remember how to how to do lua packaging and Wow packaging stuffs.

Will update the license and the version number in several days after setting up my Lua development environment and after downloading a WoW client for further testing

@mooreatv @Stanzilla Version 1.0.1 has been released. I have replaced every mentions of GPL of LibDeflate to LGPL, including the source code, README, documentation, Luarocks page, Curseforge page. Report if there is still any GPL leftovers.