Last Updated: 2021-05-15
I was told with project P not to use the latest version of WordPress. I interpreted this as being two minor versions back (i.e. something like v 4.2 instead of 4.2.2). They interpreted it as "use the latest versioned release (4.2.2)-- but not master".
The result was that I'd done work they didn't want and I had to go back and upgrade the WordPress install.
I should not have accepted the vague original formulation and instead have asked for specific version numbers.