Pulse 3+ and 4+ and php

[pulsecms]

Yes both version 4 and 5 work in both.
But soon 5 will be PHP7+ exclusive as talked about here:

Can we drop PHP 5.6? PHP 7+ now required

At the moment Pulse still runs on PHP 5.6, but we really really recommend PHP7 PHP 5 is no longer supported so is vulnerable and likely to cause problems. If Pulse was PHP7 exclusive it would make things a little easier to test but also we could bring more exclusive PHP7 features of security and speed without having to always make things backwards compatible. In other words, Pulse will get better under PHP7 only but was interested to know what you think and also hear if anyone still uses 5.6 …