Final answer:
The Internet will be upgraded to IPv6, which uses 128-bit addresses to support more devices, significantly expanding the number of available IP addresses compared to IPv4's 32-bit system.
Step-by-step explanation:
The Internet is transitioning to IPv6 which uses 128-bit addresses. This change will significantly expand the available address space, accommodating the ever-increasing number of devices connected to the Internet. Unlike IPv4, which uses 32-bit addresses and can support approximately 4.3 billion unique IP addresses, IPv6 will support a seemingly limitless number of IP addresses due to its much larger address space.