Zest has told users to pull their aeUSDC from Stacks Market V1 by October 23. The deadline marks the end of the first version of the platform's DeFi market and the start of a migration to Stacks Market V2. The company says the new version is built for more secure and efficient DeFi operations, though it hasn't detailed exactly how those improvements will work. What it has made clear is that users who miss the cutoff will be left holding assets in a market that's being wound down.
The exit deadline and what it covers
Only aeUSDC positions on Stacks Market V1 are affected. The deadline is October 23, and it's not a soft target — Zest is positioning V2 as the replacement, not a parallel option. For users with active liquidity positions, that means unwinding them before the date or trying to move them into the new market once it's live. The company hasn't said whether any grace period will follow. It also hasn't published a step-by-step migration guide, which leaves users to figure out the mechanics on their own for now.
The narrow scope is worth noting. This isn't a sweeping shutdown of all Zest services. It's a specific token on a specific version of one market. But aeUSDC is a core asset for anyone providing liquidity on Stacks, so the people affected are likely the platform's most active users.
Why Zest is pushing users to V2
Zest's stated reason is straightforward: V2 is supposed to be more secure and more efficient. Those are broad terms, and the company hasn't attached numbers to either claim. What's clear is that V1 is being retired, and the migration is the mechanism. In DeFi, that pattern usually means the older market had design limits the team couldn't patch in place — whether that's around collateral handling, oracle design, or how liquidity is routed. Zest hasn't said which of those applies here.
Security and efficiency matter more in DeFi than in most software because the assets are live and the attack surface is public. A V2 that promises both is making a claim users will test with real money. The company's credibility on that front depends on whether the new market actually holds up under the liquidity that moves into it.
Liquidity is the thing to watch
Whenever a market forces an exit, the question isn't just whether users leave — it's where they go. Some will move to V2. Some will pull out of Stacks entirely and sit in stablecoins or move to another chain. The ones who leave may not come back. That's the liquidity risk Zest is running by setting a hard deadline rather than letting V1 wind down gradually.
There's a second-order effect too. If enough aeUSDC leaves V1 in the days before October 23, the remaining liquidity could thin out, making it harder for late movers to exit at a fair price. Zest hasn't said anything about how it plans to manage that. A staggered exit would ease the pressure, but the company is signaling a single cutoff.
What users can do before the deadline
The practical steps are limited because Zest hasn't laid out a formal process. Users with aeUSDC on Stacks Market V1 need to decide whether to withdraw before October 23 or wait for V2 and re-enter. Withdrawing means taking the asset out of the market. Re-entering means trusting that V2 delivers on the security and efficiency claims. Those are different risk profiles, and the choice depends on how much each user relies on Stacks for yield.
Anyone holding aeUSDC in V1 should watch for Zest's next communication. The company hasn't announced a V2 launch date, which makes the migration timeline fuzzy. If V2 isn't live by October 23, users who exit will be sitting in cash with no clear place to redeploy on the platform. That gap is the biggest open question hanging over the whole transition.
For now, the only fixed date is the exit. Everything else — V2's launch, its liquidity depth, whether it draws back the users V1 is losing — is still unannounced.
