We have just heard that OS 5.0.0.154 which is for the BlackBerry Storm 9530 has been leaked, this was tried out on a pc and did show a file but it was not confirmed to if it was new or how it works as it was not done on a Storm.
The file is called 9530AllLang_v5.0.0.154_P4.2.0.21. A small warning is, if you are not familiar with OS upgrades we recommend you do not install the leak unless you are sure of what you are doing.
If you were to install this OS and get it wrong it may damage your device, if however you still wish to install always have a backup before installing.
Source – berryreview.com