What are the updates in the DOGE codebase?

Briefly
The Dogecoin codebase is actively maintained: recent updates include RPC optimizations and security enhancements. RPC Caching Merge (May 28, 2025) – simplified auxiliary work verification (AuxPoW) for miners. Documentation fixes (May 27, 2025) – improved instructions for developers on integrity checks. Security key update (May 5, 2025) – extended the validity of the main contributor's GPG key.
Details
1. RPC Caching Merge (May 28, 2025)
What happened: This update merged the auxiliary proof-of-work data caching system (AuxPoW) into the Dogecoin RPC layer, reducing redundant calculations during block verification. This enhancement optimizes data processing for merged mining — a critical security feature of the Dogecoin network. By isolating AuxPoW caching, miners and pool operators receive faster responses when verifying blocks. Why it matters: This is a positive signal for Dogecoin, as it increases network efficiency for miners and may attract more participants to secure the blockchain. (Source)
2. Documentation fixes (May 27, 2025)
What happened: Updated developer documentation responsible for binary integrity verification and dependency management, especially for those working with Dogecoin Core. Added step-by-step instructions for verifying build results with reference hashes and simplified troubleshooting guidance for submodule synchronization issues. Why it matters: This is a neutral but important update for Dogecoin — it reduces barriers for new developers wanting to verify or improve the code, supporting the project’s long-term sustainability. (Source)3. Security key update (May 5, 2025)
What happened: The GPG key validity for one of the main developers was extended until 2025, ensuring secure confirmation of code changes. This step prevents disruptions in the code review process and maintains trust in updates. Outdated keys associated with expired certificates were phased out. Why it matters: This is a positive sign for Dogecoin, demonstrating a proactive approach to maintaining the signing infrastructure and reducing risks of update compromise.
Summary
The latest Dogecoin updates focus on improving miner performance and simplifying onboarding for new participants — key aspects for a decentralized network. While no radically new features were added, the emphasis on stability and security aligns with Dogecoin’s role as a proven payment system.