Arc 12 Catch-up: Advanced Testing and Security

Arc 12 focused on Solana security, addressing bugs caused by incorrect account trust and authority assumptions. The process involved auditing code, tightening account validation, and using fuzzing to identify edge cases, ensuring all inputs remain untrusted until proven. Subsequently, Arc 13 managed the transition to mainnet-beta. This phase included securing upgrade authority, publishing interfaces, generating typed clients, and building wallet-connected frontends to handle transaction failures, ultimately resulting in a successful public launch of the program.