While some may have considered Itanium dead when its last CPUs shipped out to customers in 2021, that was just the end of production. The true end of the road is when software support ends, and that's what's finally happening to Itanium. Linux is removing support for Itanium's IA-64 architecture with the 6.7 update of the Linux kernel (via Phoronix), marking the effective end of Itanium.
Itanium was Intel's first 64-bit CPU, powered by the IA-64 architecture, and was jointly developed by Intel and HP. It was a troubled product almost from the start, missing its 1999 launch and slipping to 2001. Its projected revenue was constantly revised downwards year after year.
