What's going on with php83-pear-Net_DNS2

I have a PHP web site that uses the Net/DNS2 pear module.  A few days ago
it stopped working, with error messages saying it can't find Net/DNS2.

It appears that they updated the package, and the web site stopped working.

The pear library was in /usr/local/share/pear/Net/DNS2.php with submodules in Net/DNS/.

The updated version puts the files in a completely different place,
/usr/local/share/pear/data/Net_DNS2/NetDNS2, where the PHP interpreter
can't find it.

But there is another package php83-pear-Net_DNS21 which installs Net/DNS2 (not DNS21)
in the old place so my web site works again.

Any idea what's going on?

R's,
John