WordPerfect is still being updated. Waiting for Corel to port it to macOS. They already did it with DRAW!
No, it truly is not.
As I've mentioned previously, the final significant update to WordPerfect Office occurred in 2001, with the release of WordPerfect Office 10. Releases subsequent to 10 included the occasional token change, including "enhancements" to PDF compatibility and the ability to print a hard copy of a document's codes. (And, just to make us WordPerfect faithful feel extra-special, the company eventually threw in rudimentary multi-monitor support.) In recent years, there have been no functional changes at all.
Zero. Indeed, last I saw, Alludo--formerly Corel--was barely bothering to release bugfixes for the latest "version."
Oh, sure, Alludo would be delighted to sell it to you. Why, for the bare pittance of $250--often much more--you too can pay for the privilege of getting a change in WordPerfect's version number! (Hey, Alludo has gotta fund that slick website somehow. . . .)
Finally, keep in mind that WordPerfect Office is
32-bit. Rumors have have swirling for some time that x86 chipmakers may be planning to drop 32-bit compatibility. If it happens, the zombie that is WordPerfect will surely be laid to rest.