Double-spend bugs and key-derivation footguns, plus the full audit of Privacy Cash's Circom, Solana, and SDK stack.

TypeScript SDK for Lumen Cosmos, with RPC/REST clients, signing helpers, dual-signing, and Dilithium3 keystore support.

1inch Business's update log for APIs, SDKs, MCP, and observability, because release notes apparently need a front page.