Fcl1.7z <PREMIUM – CHECKLIST>

: If you use LGPL code, your modifications to that specific DLL must remain open-source.

: Most 7-Zip source code is available under the GNU LGPL license, while the LZMA SDK is in the public domain (or more liberal licenses ), allowing you to modify and recompile it. FCL1.7z

To develop a new feature for the 7z format or 7-Zip software (often referred to by internal components like 7z.dll or 7z.exe ), you generally need to work with the or its open-source code. Getting Started with Development : If you use LGPL code, your modifications