optional, single

—

Inside <version> the version number of a product used (dive computer, BCD, software e.g.) is put into brackets.

<boots>, <buoyancycontroldevice>, <camera>, <compass>, <compressor>, <divecomputer>, <fins>, <gloves>, <knife>, <lead>, <light>, <mask>, <rebreather>, <regulator>, <scooter>, <suit>, <tank>, <variouspieces>, <videocamera>, <watch>

—

the elements listed under parent elements

(see also <equipment>, <generator> e.g.)

<version>3.14159</version>