Stellar protocol discussions on CAP81 and CAP82: CAP81 optimizes eviction scanning by leveraging in-memory state instead of disk lookups, simplifying code and improving performance. CAP82 adds eight checked 256-bit integer arithmetic host functions to enable overflow handling in smart contracts.
This recording covers two Stellar protocol proposals. CAP81 addresses safety and optimization of the eviction scan process by moving from disk-based bucket list scanning to in-memory state lookups. The change simplifies the codebase, eliminates background thread complexity, and improves resource efficiency while maintaining the same semantics for archived entries. CAP82 introduces eight new checked 256-bit integer arithmetic host functions (U256 and I256) that return optional values instead of panicking on overflow, enabling smart contract developers to handle arithmetic errors gracefully and build libraries like fixed-point arithmetic without losing functionality.