Network service version management

A method comprising:

• receiving service access information associated with access to a network service by a network service user, the service access information being destined for a first version of the network service;
• determining whether a second version of the network service, which is different from the first version of the network service, is accessible by the network service user;
• and
• determining whether to select the second version of the network service to process the received service access information where the second version of the network service is accessible by the network service user.

A method comprising:

• storing service access information that is associated with access to a network service and that has been provided to a version of the network service for processing;
• retrieving the stored service access information;
• and
• providing the retrieved service access information to a version of the network service for processing.

A machine-readable medium storing a data structure, the data structure comprising:

• version information indicative of a version of a network service;
• and
• user information indicative of a network service user by whom the version of the network service is accessible,
• the data structure allowing a determination to be made as to whether the version of the network service is accessible by a network service user from whom service access information, which is associated with access to the network service and destined for a different version of the network service, is received.