The RISC OS 4.39 ROMs will upgrade a Risc PC or A7000 to the latest ROM version.

RISC OS 4.39 (also known as the "Adjust" ROM) has numerous new features over the original RISC OS 4.02 ROMs.

DHCP networking for Broadband Internet access built-in.
New Boot configuration tool activated by holding down the SHIFT key during boot up.
Many speed improvements, and significant bug fixes since 4.02
Built-in image file rendering system to give thumbnail views for JPEGs, Sprites, Drawfiles, ArtWorks files, BMP, ICO, Clear, GIF, PCX, PNM and SUN image files.