Differences between resource_adapters_1_1.xsd and resource_adapters_1_2.xsd are:

• Boolean 'connectable' attribute added: "Defines if external components can obtain a connection through the IronJacamar SPI if supported by the resource adapter"
• Boolean 'tracking' attribute added: "Defines if IronJacamar should track connection handles across transaction boundaries"
• Boolean 'validate-on-match' element added: "indicates whether or not connection level validation should be done when a connection factory attempts to match a managed connection for a given set."