Spark Protocol votes to reactivate WBTC collateral and expand liquidity layer: Sky Ecosystem

Spark Protocol is moving to reactivate Wrapped Bitcoin (WBTC) collateral support on SparkLend and expand its liquidity layer infrastructure, according to a proposal published Monday. The changes include re-enabling WBTC collateral functionality, adding USDT and USDT transfer asset rate limits to Anchorage, and onboarding a Uniswap v4 USDT/USDS pool. The proposal also covers Spark Treasury grants for Q2 2026.

WBTC collateral support was disabled in late 2024 due to governance and custody concerns in the WBTC ecosystem. The asset has now operated under the updated structure for approximately 1.5 years without incident, prompting the Spark Foundation to reassess its risk profile for re-listing on the protocol.

Sources: Sky Forum - Proposed Changes to Spark | Sky Forum - WBTC Asset Review

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