o Major bugfixes (protover, voting): - Revise Rust implementation of protover to use a more memory-efficient voting algorithm and corresponding data structures, thus avoiding a potential (but small impact) DoS attack where specially crafted protocol strings would expand to several potential megabytes in memory. In the process, several portions of code were revised to be methods on new, custom types, rather than functions taking interchangeable types, thus increasing type safety of the module. Custom error types and handling were added as well, in order to facilitate better error dismissal/handling in outside crates and avoid mistakenly passing an internal error string to C over the FFI boundary. Many tests were added, and some previous differences between the C and Rust implementations have been remedied. Fixes 24031; bugfix on 0.3.3.1-alpha.