NEW: @CoinMarketCap launch of #CMCAI is CRAZY COOL @CaptainRush GJ! Your truly/ @alexdolbun 👨🏼‍🌾 Aleksei #DOLGIKH 👜 💵 -> 💴 -> 💷 -> 💶 -> $BTC as DevOps   github.com/alexdolbun/ asked "What is the latest update in BTC’s codebase?" TLDR THE ANSWER is below, write WDYT!? in comments...

"

Bitcoin Core 29.0 introduces network upgrades, mining optimizations, and developer tooling improvements.

P2P & Network: UPnP support dropped, NAT-PMP/IPv6 port handling enhanced.

Mempool Policy: Ephemeral dust outputs allowed for zero-fee transactions.

Mining Fix: Block weight reservation bug resolved, enabling larger blocks.

Deep Dive

1. Network Protocol Changes

UPnP Removal: Dropped due to security risks and complexity ().

Onion Port Logic: Default Tor port now dynamically adjusts with -port +1 (e.g., port 5555 → Tor port 5556) to prevent collisions ().

Orphan TX Handling: Nodes now actively fetch missing parent transactions from peers, improving reliability at the cost of bandwidth ().

2. Mining & Block Construction

Reserved Weight Fix: A double-counting bug capped blocks at ~3.99M weight units (WU) even if -blockmaxweight=4M was set. The new -blockreservedweight parameter (default 8,000 WU) allows miners to optimize block space usage ().

Ephemeral Dust: Permits one dust output in zero-fee transactions if spent in the same package, enabling novel L2 use cases ().

3. Developer Tooling

CMake Migration: Replaces Autotools for builds, requiring developers to adjust workflows (e.g., -DWITH_ZMQ=ON for ZMQ support).

New RPCs: getdescriptoractivity aids wallet rescans, while getmininginfo now includes next-block difficulty metrics.

Conclusion

Bitcoin Core 29.0 prioritizes network resilience, mining flexibility, and developer experience. While node operators must adapt to NAT-PMP changes, miners gain finer control over block construction. Will these updates accelerate experimentation with transaction package relay and fee-bumping strategies?

"

image
GIF
May 24, 2025 at 6:02 PM
3
46
4
2
2
2