Catalogs posted on or after 4/14/09 will contain BundleID fields that may have GUIDs rather than release IDs.
See Example in this excerpt:
<SoftwareBundle schemaVersion="1.0" releaseID="7f1b655e-fc14-4cc1-a35b-31634066a7b7" bundleID="7f1b655e-fc14-4cc1-a35b-31634066a7b7" dateTime="2009-04-02T15:10:56-05:00" vendorVersion="B184271.310" path="PEM710-LIN-b8fb1c3f-f49d-4be4-948c-3b18e095f869.XML">
…
</SoftwareBundle>
The bundle ID and release ID fields are set to "7f1b655e-fc14-4cc1-a35b-31634066a7b7" rather than a string like “R204822” which was the previous method.
Partners should plan on there being a mix of GUIDs and release ID’s for some time, until all GUIDs are used. The schema has this field as a string, so partners who are using those fields as intended should not be affected. Please let us know if you have any questions or concerns.