Windows
- Minimum 32 bits target for official clients : Windows XP SP3
- Minimum 64 bits target for official clients : Windows Vista
GNU/Linux
- GNU GCC 4.4.5 (Debian Squeeze) and up
- clang/llvm 3.6.0
- Minimum target for official clients : GLIBC_2.11 / GLIBCXX_3.4.10
OS X/macOS
- Apple LLVM version 8.0.0 (from Xcode 8.0)
- Minimum target for official clients : OS X 10.7 64 bits