4. Upgrading from 7.3.1 to 7.4.0

See Important: How to Use this Guide, if you haven’t already.

The following sections describe how to upgrade from Connext 7.3.1 to Connext 7.4.0. Release 7.4.0 is an early access release (EAR) not for production.

7.3.1-to-7.4.0 is not a “real” migration path, because 7.3.1 came out after 7.4.0. However, if you are migrating from 7.3.1 to any JacksonHole series release (7.4.0, 7.5.0, or 7.6.0), you must do the steps in this chapter first. See Upgrade Path.

• 4.1. General Compatibility 7.4.0
  • 4.1.1. Wire Compatibility
    • 4.1.1.1. RTPS Versions
    • 4.1.1.2. Best-effort DataReader from before 6.1.0 cannot receive MultiChannel RTPS fragmented data from synchronous DataWriter in 7.4.0
  • 4.1.2. Transport Compatibility
    • 4.1.2.1. Real-Time WAN Transport updated message_size_max value may cause messages to be dropped from previous versions
• 4.2. Product-Specific Compatibility 7.4.0
  • 4.2.1. RTI Connext Core Libraries
    • 4.2.1.1. Properties dds.sample_assignability.accept_unknown_enum_value and dds.sample_assignability.accept_unknown_union_discriminator have been deprecated
    • 4.2.1.2. Sample assignability default value changed in from_cdr_buffer APIs
    • 4.2.1.3. Can no longer use “DDS_” prefix with KEEP_LAST_HISTORY_QOS and KEEP_ALL_HISTORY_QOS enumeration values in XML files
    • 4.2.1.4. New discovery protocol APIs for RPC and Request-Reply in Modern C++
  • 4.2.2. RTI Security Plugins
    • 4.2.2.1. Interoperability with DomainParticipants that have a domain tag or partitions
    • 4.2.2.2. HMAC-Only mode removed from the Builtin Security Plugins
    • 4.2.2.3. Use new property in place of authentication.key_establishment_algorithm
  • 4.2.3. RTI Connext Observability Framework