If you are still holding Synths on Optimism (sETH, sBTC, sLINK etc.), please be aware that the legacy Synth system will be start to deprecate on 31st January 2026.
If you have Synths on ETH Mainnet, please see: I have Synths on ETH Mainnet
Deprecation timeline
Milestone | Date |
Last day to swap Synths on Optimism | January 31, 2026 |
Oracle price is frozen for treasury redemptions | February 1, 2026 |
Discount applied to treasury redemptions | April 30, 2026 |
Redemptions close | December 31, 2026 |
What this means
You can swap Synths to sUSD until 31st January 2026 at https://legacy.kwenta.io or https://1inch.com/
Between 1st February till 30th April 2026, please contact support for redemption at a fixed frozen redemption price.
After 30th of April till 31st of December a discount applies to redemptions and increases linearly at 12.5% of the frozen oracle price per month until reaching 100%.
Synth redemptions will end after 31st of December.
⚠️ Important: Only Synth balances that were held prior to deprecation (and remain in the same wallet) will be considered for redemption. Acquiring deprecated Synths after the deprecation date (31st January 2026) does not guarantee redemption eligibility.
What you can do
Check your wallet
Make sure you are connected to the correct network and your Synths are on Optimism.
Check the Deprecation timeline
Redeem / Swap your Synths
Till 31st January 2026 swap at https://legacy.kwenta.io or https://1inch.com/
If you cannot swap (after 31st January 2026)
Contact support, provide your wallet address, and ask for an agent.
An agent can review your balances and advise if redemption is still possible.
⚠️ Important: The balances you see for Synths may not always reflect what is redeemable, due to the deprecation process.