What's new in IBM MQ 9.3.1 for Multiplatforms - base and Advanced entitlement

New CAPEXPRY attribute

From IBM MQ 9.3.1, CAPEXPRY becomes a separate attribute, replacing the text based attribute in the CUSTOM field.

For more information, see CAPEXPRY in the ALTER QUEUES command and Enforcing lower expiration times.

Changes to MQCSP password protection in MQIPT

From IBM MQ 9.3.1, IBM MQ Internet Pass-Thru (MQIPT) can add or remove protection for passwords in MQCSP structures, in order to maintain compatibility between the client and queue manager for MQIPT routes that add or remove TLS encryption. MQCSP password protection is not supported in earlier versions of MQIPT, for routes that add or remove TLS encryption.

From IBM MQ 9.3.1, the default value of the new PasswordProtection route property allows MQIPT to add, but not remove, MQCSP password protection. Connections to a MQIPT route that adds TLS encryption, that previously worked, might fail with reason code MQRC_PASSWORD_PROTECTION_ERROR. To resolve this issue, set the value of the PasswordProtection property to compatible in the MQIPT route configuration.

For more information about MQCSP password protection, see MQCSP password protection.

New set of .NET 6 libraries

The naming convention for these libraries remains the same as for the IBM MQ .NET Standard libraries , that is amqmdnetstd.dll for IBM MQ .NET and amqmxmsstd.dll for XMS .NET. Keeping the same naming convention makes migration easier and means that you do not need to re-build your .NET Core or .NET applications.

For more information, see Installing IBM MQ classes for .NET and Installing IBM MQ classes for XMS .NET.

New IBM MQ Console layout

The console layout has changed at the queue manager view level. The new layout is described in the topics under Quick tour of the IBM MQ Console - CD only.