wp-includes/IXR/class-IXR-server.php:183 function setCallbacks() { $this->callbacks['system.getCapabilities'] = 'this:getCapabilities'; $this->callbacks['system.listMethods'] = 'this:listMethods'; $this->callbacks['system.multicall'] = 'this:multiCall'; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/IXR/class-IXR-server.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.