The build 290.4 is available in the Product Owners Lounge forum. Note: this build might not include some of the latest fixed from Fernando on Android and iOS, they will be included in the first beta of the build 291.
In case of problem you can reinstall any other version (no need to uninstall first, just reinstall the patch of the build you want to reinstall).
If any problem with this version, please post it in the bug box, don't post it in this forum otherwise the developers won't see it, thanks!
PS: the CF 2.5 patch updates all the installed exporters, you do not need to reinstall them.