The new PEAR installer release adds PHP 7 support while dropping support for PHP 4 - 5.3. It also fixes a nasty SSL issue that made it hard to use on PHP 5.6. With the update, strict warnings about static calls to a non-static PEAR::isError() are a thing of the past.
You can upgrade your existing PEAR version with the following command:
$ pear upgrade PEAR-1.10.0dev1
Pre-release versions of go-pear.phar and install-pear-nozlib.phar can be temporarily be found at