Deprecation Guide
Concrete is deprecating the Corn Bitcoin and Corn Stables vaults as part of a long-term platform consolidation and upgrade strategy.
If you deposited into these vaults, we recommend redeeming your funds as soon as possible. While they will remain visible in the app, we strongly encourage early withdrawal to ensure full control of your assets and avoid delays.
A fallback recovery option will remain available after deactivation.
Summary for Depositors
- The Corn Bitcoin and Corn Stables vaults are being deprecated
- Your funds are safe and withdrawable via the app until October 1st, 2025
- Rewards already earned will remain claimable
- After October 1st, any remaining funds will move to a Recovery Vault and will still be redeemable via manual support
What’s Changing?
The following vaults will be deprecated:
- Corn Bitcoin: uniBTC — Deposit: uniBTC
- Corn Bitcoin: solvBTC.BBN — Deposit: solvBTC.BBN
- Corn Bitcoin: LBTC — Deposit: LBTC
- Corn Stables — Deposit: USDT
All affected vaults will be deactivated on October 1, 2025. From that date, any remaining funds will be stored in the Recovery Vault, where users can claim them through a manual support process. We recommend withdrawing your funds before deactivation.
Are My Funds Safe?
Yes. Your deposited assets and yield remain secure in audited smart contracts. You’ll be able to access them via:
- The Concrete Earn app
- A manual support process
What Should I Do?
Withdraw now — if the vault is still active in the app:
- Visit the Concrete App
- Select your relevant vault (Corn Bitcoin or Corn Stables)
- Navigate to the Withdraw tab
- Click Withdraw on your vault position and follow the wallet prompt
Key Dates
| Event | Timing |
|---|---|
| Deposits disabled & deprecation announcement | July 29, 2025 (announcement via an info box on the Withdrawal tab of each vault page & Discord) |
| Vault deactivation | October 1, 2025 |
| Recovery Vault claim deadline | October 1, 2026 (one year after deactivation) |
What About Rewards or Points?
- For Corn Bitcoin vault depositors:
- If you deposited on app.concrete.xyz; Corn rewards were distributed on June 6, 2025
- If you deposited via Pendle, Corn rewards were distributed by Pendle on June 7, 2025
- For Corn Stables vault users, rewards are managed via Merkl.xyz.
How to Check Your Rewards
If you deposited into the Corn Stables vault:
- Rewards are automatically calculated based on vault activity
- No manual action is required to receive them
You can view and claim your rewards here: Check Your Corn Rewards on Merkl.xyz
Need Help?
We’re here for you:
- Ask questions in the Concrete Discord
- Or email us at support@blueprintfinance.com
Our team is ready to walk you through any withdrawal or recovery steps.