HoosatNetwork/HTND v2.0.0

HTND 2.0.0 Zenith

on GitHub

HTND 2.0 Zenith Release Notes

Overview

HTND 2.0 Zenith represents a major upgrade, bringing significant improvements in consensus, stability, performance, pruning architecture, wallet functionality, and overall node reliability.

Major Changes

DAGKnight

• First open implementation of the DAGKnight consensus engine.
• Added Hard-Fork support (DAA score + HF preparams, block version 6).
• Dynamic K is now persisted and stored within GhostDAG data.
• Fixed inconsistencies between block version and DAA score usage.
• Added protection against mixed-K pruning issues.

Pruning & Pruning Proofs & Data Retention

• New configuration flags: --pruning-interval-* and --data-retention-hours.
• Improved pruningManager logic for better control over retention and pruning intervals.
• Last pruning time is now persisted in the database.
• Significant performance optimizations for pruning-proof validation, reachability, and application.
• Implemented snapshotting of pruning-point UTXO chunks.
• Multiple fixes and robustness improvements to pruning-point logic.
• Added pruning-point proof harness/tool for easier development and verification.
• Fixed IBD block request logic to prevent node freezes.

Networking (P2P / gRPC)

• Multiple gRPC connection handling fixes (including dnsseed and p2pserver).
• Register/unregister gzip codec properly; made disconnects idempotent.
• Fixed connection leaks during failed setups and improved overall disconnect handling.
• Tuned ping/pong and IBD backpressure mechanisms.
• Proper draining of relay routes.
• Drop INV messages when route is missing or full.

Wallet & Transactions

• Added P2PKH and P2SH address/script support to htnwallet.
• Added Replace-By-Fee (RBF) support.
• New wallet API endpoints for transaction status and confirmations.
• isHighPriority submit option, so you can decide persistence of transactions in mempool.
• Hardened UTXO selection logic.
• Fixed wallet freezes, nil-pointer crashes, and improved sync-loop robustness.
• Rejection of unsupported script versions.
• Improved include-transactions cache behavior.
• Various mempool stability mitigations.

Performance & Memory

• Multiple memory and allocation optimizations (block parents, BlockWindow, pruning-proof reachability).
• Added/adjusted LRU caches with thread-safety fixes.
• Reduced GC churn via Bech32 checksum allocation changes.

Documentation & Scripts

• New "Running a node" guide for Ubuntu 24.04.
• Updated and moved start-htnd.sh with supporting documentation fixes.

Zenith is a major step forward for the HTND ecosystem, focusing on production readiness, maintainability, and feature completeness.

Users are strongly encouraged to review the new pruning and retention flags before upgrading.