 
 <prompt> ```why Sony need the update? Given the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context:``` <response>: "The 'OtherOS' functionality no dey available for di updated PS Slim models, and dem come remove di feature from previous versions of the PS3 as part of the machine's firmware update version 3.21 wey dem release on April 1, 2010; Sony talk say na security concerns make dem do am. The firmware update 3.21 na must for you to fit access the PlayStation Network. The removal cause some controversy; as di update come remove officially advertised features from products wey don already sell, and e bring about several class action lawsuits wey dey aim to make Sony return the feature or provide compensation." 