Today we announce security upgrades for ZKsync chains. Over the next 6 months, all Boojum/EraVM chains will begin deprecating the legacy execution environment, with each chain setting & communicating its own timeline. Your action may soon be required. Here’s what's changing 🧵

Hardening EraVM against AI-driven attacks: ▪️Instant Upgrades framework ▪️Code published 3 months post-upgrade ▪️EraBender, a second prover in development Recommended for public EraVM chains: ▪️Execution delay: 3h → 24h ▪️Independent verification nodes

Why now? EraVM chains secure real value, and AI has collapsed the cost of finding vulnerabilities for every protocol. So we're hardening EraVM today, while its successor, ZKsync Atlas, is built from the ground up for this new landscape. Atlas chains are unaffected.

Who's affected: No action is required now for funds held directly in EOAs. Funds held through smart contracts: multisigs, smart accounts, DEXs, lending markets, etc., will need action in the coming months, as each chain's transition plan is finalized. Chains are coordinating their transition directly with ZKsync and will communicate any steps to their own users. Please follow their official channels.

Using @grvt_io? @grvt_io runs a permissioned ZK chain, meaning the 24h execution-delay recommendation isn't directed at them. We are coordinating directly with them on their transition and they will communicate any steps to their users. No action is needed from @grvt_io users at this time.

What to do now: Follow updates only on our official channels: @zksync, the ZKsync blog, and @TheZKNation forum. Exact steps and dates will be announced there with advance notice before any action is required. We will never DM you or ask you to migrate funds via a link. If you hold funds in your own smart contracts and aren't sure you can follow updates, you can move them to an EOA now. No deadline applies today; preparing early is optional.

Retiring EraVM isn't slowing down. It's clearing the runway. Proactive hardening, staged transitions, clear notice. This is the operating standard institutional Finance expects onchain and Atlas is built to it from day one. The groundwork comes first. Read the full post 👇

Dammmm… you guys are still acting like your are onto something lmao We know you are just sucking out liquidity, then you’ll sunset everything…. Stop it now lmao

It's over for you. If you can still working it's because you sold $ETH but everything you do is useless. You aren't rentable, just check the volume of transaction fee 😂 you earn more in McDonald's

devs shipping

World-class team!

A useful reminder that infrastructure doesn't get to stand still. The threat model changes. The tools change. The assumptions change. AI made finding bugs cheap. So the old environment has to evolve before that assumption breaks.

dumped 99.70% $ZK STOP FAKE HYPE

Kudos to the team for prioritizing security and clearly outlining the upcoming changes.

Great! ZKsync chains are getting stronger!

Shit, its still alive 😆😆😆

Deprecating an execution environment with a timeline, per-chain notice, and no surprise fund moves is the part institutions actually look for

💪💪

announcing a 6-month deprecation window for the thing running your chain is a bold way to find out who reads the docs. the upgrade will be smooth. historically these are smooth.

💩

i will master zk soon.

6 months is generous as far as forced migrations go, but I'd bet a chunk of teams still wait until month 5

Upgrades to zk

Bullish

GREAT WORK, TEAM!

Devs still selling tokens

If your ZK token actually had any real value, there’s no way it would have dropped by 99%. Stop putting out news like this—it just makes people laugh.