# TmuxError.unsupportedTmuxVersion(reported:required:operation:)

- **Package:** libtmux-swift
- **Language:** Swift
- **Kind:** constant
- **Source:** https://github.com/libtmux/libtmux-swift/blob/e72fb5c17ab54996233b76b037c3b94a46e55685/Sources/LibTmux/TmuxError.swift#L37
- **Page:** https://libtmux.org/en/swift/latest/reference/tmuxerror-unsupportedtmuxversion(reported-required-operation-)/

The tmux release behind the endpoint cannot serve the requested operation. Raised before the operation has any effect.

`reported` is the release as the daemon (or, for an endpoint with no
daemon yet, the executable that would start one) spelled it, and
`required` is the oldest release that serves `operation`.