Ethereum’s EIP-7742 blob target ceiling and consensus layer changes

Staking reward adjustments and issuance limits

Ethereum researchers propose burning validator rewards to cap staking at 50% of the total supply. The EIP-8361 proposal, or "Tapered Issuance Burn," outlines a change to the network’s monetary policy. Justin Drake, Jerome de Tychey, and pintail authored the draft. This plan destroys a portion of rewards earned from block attestation, block proposals, and sync committees. The burn rate starts at zero and increases as more ETH enters staking. It reaches 100% once 60.25 million ETH locks in the network. Current staking levels sit at 41.1 million ETH, which equals 33.7% of the 120.7 million ETH supply. The researchers project that staking could exceed 70 million ETH by January 2028. To avoid market disruption, the mechanism includes an 18-month transition period. During this phase, the base reward factor temporarily doubles from 64 to 128 before it returns to current levels. BeInCrypto estimated that immediate activation would cut validator rewards by 13% on day one. This change would lower annual returns from 2.6% to 1.1%. Stan Kuleshov, the CEO of Ave Labs, argued the proposal will cause real harm to Ethereum. He claimed that as rewards converge to 0%, Ethereum borrowing strategies will become impossible. Will the 18-month transition period prevent the predicted volatility in DeFi borrowing?

Validator migration and operational risks

Validator migration requires strict adherence to data directory preservation to avoid network stalls. During a cluster migration for Materios, operators copied chain data but cleaned the keystore/ directory. They assumed the –alice/–bob CLI flags would regenerate keys, but they did not. The custom runtime used wizard-generated session keys that require the original mnemonic for recovery. If an operator copies the chain database but fails to preserve the keystore/ directory, the validator starts but cannot produce blocks or vote in GRANDPA because the wizard-generated session keys remain missing. This error caused an 18-hour chain stall across 4 Aura + GRANDPA validators. Operators must copy the db/, keystore/, and network/ directories together. They must stop the node before copying to prevent SST compaction errors in RocksDB. A user can verify keys after migration using the author_hasKey RPC. If a validator loses keystores, the author_insertKey RPC allows recovery with the original mnemonic.

Database state and migration references

Developers manage contract state through Prisma ORM migration references. A ref provides a name for the contract state an environment should match. The contract consists of a schema that the contract emits to contract.json. You can use commands like db migrate –to production or db update –to production. The db ref records the contract state the local database should match. If you run a migration plan without –from, the plan starts from the db ref. The db init and db update commands update the db ref when they take the connection from prisma.config.ts. If you pass –db, they update it only if you also pass –advance-ref db. A ref name uses lowercase letters, digits, and hyphens. Valid names include staging, prod-2, and staging/eu. Names like Prod or a//b result in a MIGRATION.INVALID_REF_NAME error. The db sign command updates the db ref after it succeeds. The db migrate command updates the file only when you pass –advance-ref db.

Hardware cooling and data center infrastructure

Data center cooling technology is moving toward two-phase direct-to-chip systems. Accelsius and Zutacore offer this technology. Unlike single-phase systems that circulate dielectric fluid in a liquid state, two-phase systems include a phase change from liquid to gas. This change increases the amount of heat removal. Single-phase direct-to-chip systems currently dominate the market. However, chip power levels continue to rise. The thermal management market grew 29% year on year in Q2 2025. Direct liquid cooling showed 156% growth in that category. Accelsius CEO Josh Claman said they have a proof of concept in two hyperscalers this year. They expect a third by the end of the year. Hyperscalers want supply chain diversity. They want multiple manufacturers to ensure they have alternatives.