If you like to upgrade your OS here is the latest for the BlackBerry Bold 9700. This version is OS 18.104.22.1688 and according to BBLeaks this could possibly be the last OS 5 release before we see OS 6 for the BlackBerry 9700.
Available Download Links
Notice/Disclaimer: This is an unofficial RIM software release so Install at your own risk. Since this is unofficial leaked software their is no guarantee of stability. This product will not be supported by RIM or your carrier if any problems arise. PLEASE, if you choose to upgrade with a leaked software version it is strongly recommended that you make a backup before using any leaked software. 3rd party apps and software also may not work when upgrading.
If any of the above comments makes you unsure about doing an upgrade then you should wait for an Official RIM software Release. If you choose to install, you are doing so at at your own risk. BlackBerrySites is not responsible for any malfunctions, crashes, incompatible 3rd party apps or BlackBerry devices deemed inoperable.