Thanks to the help of some issue reports on GitHub and a focused effort on testing the Bonfire core with CodeIgniter v3.0, I'm announcing the release of Bonfire v0.7.3. This release drastically improves the functionality of Bonfire when used with CodeIgniter v3.x.
At this point, I believe Bonfire is ready for real-world use with CI3. Since I intend to start testing integration of my own site with CI3 using this release, fixes for any bugs I find or which are reported for this release will go into v0.7.4.
At this time, I intend for the future v0.7.4 release to be the last release which ships with CI2 installed and running by default. While I intend to support using CI2 in the v0.8.x line, it will require some extra steps to get things working, similar to those currently required for CI3.
I'd like to thank everyone for their patience regarding the lack of progress in other areas of Bonfire during this period of transition to CI3.