Originally published on xroot.dev . Every token you have ever held on Solana that is not Token-2022 lives under one program: the classic Tokenkeg… address. It is the most-called program on the chain, it has not materially changed in years, and most people assume it never will, because changing it would mean changing an address that half the ecosystem has hard-coded. SIMD-0266 did not change the address. It changed what runs behind it. On 13 May 2026, at the start of epoch 971, a featur...