# libtmux.Capability.since

- **Module:** libtmux
- **Package:** libtmux
- **Language:** Lua
- **Kind:** attribute
- **Source:** https://github.com/libtmux/libtmux-lua/blob/4af8884cb1c80854e583701b2b31a02399a4f3f8/lua/libtmux/_internal/support/capabilities.lua#L31
- **Page:** https://libtmux.org/en/lua/latest/reference/libtmux-capability-since/