Recently, Joe announced the Leaked OS v188.8.131.520 for the 9930. Today Sprint officially released OS v184.108.40.206 for the Bold 9930. This build is a few builds back and we are not sure if it will contain NFC support, however it is an official version. For those more confortable loading only officials, here is the newest available official.
Remember: Even though this is an official OS release, you must still take the proper install precautions (back-up your device). If you wish to install this OS keep in mind the OS may not be from your carrier and you will need to delete the vender.xml file. Although this is an official OS release, BlackBerryOS.com and any other BlackBerryOS Official sites are not responsible for anything that may happen to your BlackBerry Device.
If you are not comfortable installing and/or unsure as how to upgrade to this OS, please click the link below and read our guide. If anything does happen to your phone, make sure to check out the BlackBerryOS Support Forums to help with any errors or issues.