There is a bug in Breadcrumb NavXT 3.5.0’s install script that will reset your settings on activation. If you do not want to lose your settings, please export them using the Import/Export/Reset tab, and then Import them after upgrading to 3.5.0. Next week 3.5.1 will be released to address this problem and a few others that were discovered today by myself and others (probably Monday night).
As for how these made it into the main release, there is no one to blame for it but myself. As I work directly out of my testbed, I don’t activate/deactivate my plugins except when to test the install script. The actual cause was back in 3.4.0 when I changed ‘tag_’ to ‘post_tag_’ in some of the option names to fit with the custom taxonomy support (and WordPress’ name for tags). However, 3.4.x had a bug where the install script did not actually run (in most cases). When that was fixed with the rewrite of much of the administrative interface code, this dormant bug appeared, but I didn’t notice it until today while trying to fix a bug with the “Archive by Date Suffix” setting.
Moving forward, if you are using Breadcrumb NavXT in a system that does not use the default settings, please do a settings export before upgrading. This will save everyone headaches in the future. Also, I try to fairly transparent about development progress, and almost always announce when the plugin is going to translators for translation updates. This is typically a week before I intend on releasing it. In this time, please feel free to test out the SVN trunk for bugs that may affect you. Since there are features in Breadcrumb NavXT that I do not routinely use, I may not catch bugs in these areas. The more people looking at the release candidate, the fewer number of bugs that will make it through (same goes for WordPress as well). As always, if something is broken let me know.
[end of transmission, stay tuned]