LuaJIT is actively developed and maintained. You can follow the development progress in the git repository, the LuaJIT mailing list and the issue tracker.
Versions and Branches
| Branch | Maintained | Breaking Changes | New Features | Recommended Use |
| v2.0 | bugfixes | no | no | Compatibility only |
| v2.1 | yes | no | limited | Production |
| (TBA) | yes | yes | yes | Development |
Each versioned branch corresponds to a $major.$minor version of LuaJIT.
The old git master branch is phased out and stays pinned to the v2.0 branch. Please follow the versioned branches instead.
Feature and Maintenance Policy
- Older versions receive fixes and backports, but no new features.
- Only recent versions receive new features.
- Production-use branches receive only non-breaking changes and limited, upwards-compatible features.
- Development-use branches also have breaking changes. Any commit may break API, ABI and bytecode compatibility.
- TBA = to-be-announced here, when a new development branch will open.
Release Policy
LuaJIT uses rolling releases. The authoritative origin is the git repository from this site. You should regularly pull from the selected git branch to get the latest fixes and developments. No release tarballs or binaries are made available.
Instead of manual increments for each release, the build process uses the
POSIX time stamp of the latest commit as the release number of the semantic
version. The full version number in the format
$major.$minor.$timestamp can be shown with:
luajit -v
If you only have a version number and need to know the related commit, then
fill in the parts of the version number in this command:
git show "v$major.$minor@{$timestamp}"
Operating Systems
Server, Desktop and Embedded
| OS | Min. Version | Requirements | LuaJIT Versions |
| Linux | v2.0 – | ||
| *BSD | v2.0 – | ||
| macOS (OSX) | 10.4 | v2.1 – | |
| POSIX | mmap, dlopen | v2.0 – | |
| Windows | 7 | x86 or x64, ARM64: TBA | v2.0 – |
Mobile
| OS | Min. Version | Requirements | LuaJIT Versions |
| Android | 4.0 | Recent Android NDK | v2.0 – |
| iOS | 3.0 | Xcode iOS SDK | v2.1 – |
Console
| OS | Min. Version | Requirements | LuaJIT Versions |
| PS3 | PS3 SDK | v2.0 – v2.1 EOL | |
| PS4 | PS4 SDK (ORBIS) | v2.0 – | |
| PS5 | PS5 SDK (PROSPERO) | v2.1 – | |
| PS Vita | PS Vita SDK (PSP2) | v2.0 – v2.1 EOL | |
| Xbox 360 | Xbox 360 SDK (XEDK) | v2.0 – v2.1 EOL | |
| Xbox One | Xbox One SDK (DURANGO) | v2.1 – | |
| Nintendo Switch | NintendoSDK + NX Addon | v2.1 – |
The codebase has compatibility defines for some more systems, but without official support.
CPU Architectures
| CPU | Bits | Endianess | FP | Requirements | LuaJIT Versions |
| x86 | 32 | little | FPU | v2.1+: SSE2 | v2.0 – |
| x64 | 64 | little | FPU | v2.0 – | |
| ARM | 32 | little | FPU + soft | ARMv5+, ARM9E+ | v2.0 – |
| ARM64 | 64 | little + big | FPU | v2.1 – | |
| PPC32 | 32 | big | FPU + soft | v2.0 – v2.1 EOL | |
| PPC/e500 v2 | 32 | big | FPU | v2.0 EOL | |
| MIPS32 r1-r5 | 32 | big + little | FPU + soft | v2.0 – | |
| MIPS64 r1-r5 | 64 | big + little | FPU + soft | v2.1 – | |
| MIPS64 r6 | 64 | big + little | FPU + soft | v2.1 EOL | |
| RISC-V | 64 | little | hard | RVA22+ | (TBA) |
There are no plans to add historic architectures or to continue support for end-of-life (EOL) architectures, for which no new CPUs are commonly available anymore. Likewise, there are no plans to support marginal and/or de-facto-dead architectures.