If you are looking for "v23," you are likely attempting to resolve connectivity drops, Bluetooth interference, or low link speeds. Below is a detailed breakdown of the current best firmware standards, how to identify your version, and the recommended upgrade path.
Drastically improves RAM management, enhances battery life, and offers granular privacy controls. q6x v23 firmware best
Upgrading to a different firmware branch will completely wipe your internal storage. Back up your photos, contacts, and app data to a cloud service or external PC first.