Solana raises its block compute limit to 100 million

Solana raised the compute limit on mainnet blocks from 60 million to 100 million compute units at the start of epoch 1009, a 66 percent increase in the work a leader can pack into a single block. The change is specified in SIMD-0286, authored by Jito Labs, and had already run on testnet and devnet.

Two related ceilings stay where they were. The per-account cap on compute consumed by any single writable account within a block holds at 12 million, and the 100 megabyte limit on block account data size is unchanged.

More headroom per block means more transactions land in each one during periods of heavy demand, without applications changing how they are written.

The per-account cap holding at 12 million is the load-bearing detail: the added capacity goes to a wider mix of activity rather than letting one hot account consume more of a block than it could before.