Ethernova v2.0.0 — Noven Fork
Ethernova 2.0 — The Noven Fork
The biggest upgrade in Ethernova history. Named after community developer Noven who designed and built the adaptive gas system.
Activates at mainnet block 480,000. ALL nodes must upgrade before then.
Why Ethernova over vanilla Ethereum?
| Feature | Ethereum | Ethernova 2.0 |
|---|---|---|
| Gas pricing | Flat | Adaptive: -25% discount for simple, +10% penalty for heavy |
| Reentrancy protection | None (devs add their own) | Built-in at protocol level |
| Failed tx cost | Pay full gas | 90% refund on revert |
| Account abstraction | ERC-4337 + bundlers | Native Frame AA |
| State management | Grows forever | Auto-archive after ~115 days |
| Batch operations | One per tx | Tempo: atomic batching, fee delegation |
| MEV protection | None | FIFO fair ordering |
What activates at block 480,000
- Adaptive Gas V2 — Pure computation gets up to -25% discount. Heavy storage pays up to +10% more.
- 9 Native Precompiles (0x20-0x28) — Batch hash, batch verify, account manager, Frame AA, native tokens, privacy pool, contract upgrades, oracle
- Per-EVM Reentrancy Guard — Protocol-level protection against the #1 DeFi exploit
- State Expiry — Inactive contracts archived automatically
- Tempo Transactions — Atomic batching, fee delegation, scheduled execution
- Gas Refund on Revert — 90% refund for failed simple transactions
- Anti-MEV Fair Ordering — FIFO + rate limiting
100% Backwards Compatible
- All existing contracts work without changes
- No chain reset — existing chain continues
- Block hashes verified identical from block 1 to 445,000
- Same tools: MetaMask, Hardhat, Foundry, ethers.js
Upgrade
- Download binary below
- Replace current
ethernovabinary - Restart node
- Done. No re-init, no migration.
Stats
- 40 files changed, 7,675 lines added
- 53 unit tests, all passing
- Verified against 445,000+ mainnet blocks