...
INSERT {<> oai:description "exciting description here"}INSERT {<> oai:version "4.0.0-beta-04-SNAPSHOT"}INSERT {<> oai:adminEmail "your.email@here.org"}
(oai:version is populated by the software itself, so it should be the software build version)
If one or more of the properties are missing, the OAI provider should use the built-in values:
...
oai:description: "An example repository description"
oai:version: "4.0.0"<whatever the software version is>
oai:adminAddress: "admin@example.com"
...