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SIMD-0432 Loader V3: Reclaim Closed Program

ReviewCoreStandardcreated 2025-12-14

Authors: Joe Caulfield (Anza), Dean Little (Blueshift)

This SIMD proposes changing the default behavior when closing upgradeable programs so that program accounts are fully reclaimed and their addresses become reusable. Tombstoning program accounts would remain supported, but only when explicitly requested.

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What the proposal covers

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