Dolphin 7.3.4 is an important service update, bringing over 60 various fixes and minor enhancements. This version is a BETA release, non-upgradable, offered for testing purposes only.
This is a "service" version update with 42 fixes and 11 enhancements. Since 7.2 has introduced so many significant changes a service update is coming out hot on its heels to address any issues that may have been missed in 7.2.