Network
- [LocationFree™ Player] has been added as a feature under [Network].
- [Auto-Select] and [Unicode (UTF-8)] have been added as options to [Encoding] under [View] in the [Internet Browser] menu bar.
- Settings for [Text Size] and [Display Mode] in [Internet Browser] can now be saved.
- The input history of online forms accessed through [Internet Browser] can now be saved.
Video- Copyright-protected video can now be played under [Video]. (This applies to video saved on Memory Stick Duo™ media).
- For details, contact the video content provider.
- Note that fees may be charged to obtain or use copyright-protected video.
- Downloadable copyright-protected video may not be available in all countries and regions.
Settings- [Set via Internet] has been added as an option to [Date and Time] in [Date & Time Settings] under [Settings].
- [WPA-PSK (AES)] has been added as a security method under [Network Settings].
Other- Korean input mode has been added to the on-screen keyboard.
If you wish to run homebrew code on your PSP, then upgrading to v2.50 is not recommended at this time. Anything over 2.00 leaves you completely in the dark in terms of homebrew. If you have 2.00 firmware and would sacrifice the extra features to run homebrew games and applications, then you might want to consider downgrading to v1.50.
Source:
PlayStation.com