From skimming the code, I don't see anything implemented that actually requires features available only in 7.1 or higher. Neither does PHPStorm detect anything that would break on 7.0. Meanwhile, Debian 9.0 is releasing this summer with PHP 7.0. It won't be until Debian 10 (likely to release in 2019) that a large number of servers will be able to use PHP 7.1 code.
This is the first WebSocket client library I've found that's actually written well. Please don't shut me out of it.
Actually, scratch that. I see that you're committed to supporting the 2.x release and that the latest update to it is relatively recent. Carry on, good sirs.
From skimming the code, I don't see anything implemented that actually requires features available only in 7.1 or higher. Neither does PHPStorm detect anything that would break on 7.0. Meanwhile, Debian 9.0 is releasing this summer with PHP 7.0. It won't be until Debian 10 (likely to release in 2019) that a large number of servers will be able to use PHP 7.1 code.
This is the first WebSocket client library I've found that's actually written well. Please don't shut me out of it.