比特幣核心 27.0 升級透過增強的安全性和功能來增強比特幣網絡

Bitcoin Core 27.0 是基本比特幣網路軟體的最新版本，帶來了許多改進。此次更新引入了增強的安全協定、網路優化和錢包效率升級。已棄用的功能將被刪除，並由更強大的替代方案取代。這個版本強化了比特幣的去中心化性質，並增強了網路應對不斷變化的挑戰的能力，為比特幣基礎設施的穩定性和彈性做出了貢獻。

Bitcoin Core 27.0 Release Enhances Bitcoin Network Security and Functionality

Bitcoin Core 27.0 發布增強了比特幣網路安全性和功能

March 2, 2023: Bitcoin Core, the foundation software for running the Bitcoin network, has introduced a comprehensive suite of enhancements and updates with the official launch of version 27.0. This upgrade signifies a commitment to bolstering the network's security, efficiency, and overall functionality, solidifying its role as a robust and decentralized digital currency ecosystem.

2023 年 3 月 2 日：運行比特幣網路的基礎軟體 Bitcoin Core 推出了一整套增強功能和更新，並正式發布了 27.0 版本。此次升級標誌著我們致力於增強網路的安全性、效率和整體功能，鞏固其作為強大且去中心化的數位貨幣生態系統的作用。

Key Features and Changes

主要特徵和變化

Deprecated Features and Future Replacements

已棄用的功能和未來的替代品

Bitcoin Core 27.0 deprecates the "libbitcoinconsensus" library, which has been an integral part of the network for almost a decade. The library's functionality will no longer receive updates beyond the Taproot protocol upgrade, marking a shift towards "libbitcoinkernel." This new library offers a robust API that directly interacts with the unspent transaction output (UTXO) set for transaction and block validation.

Bitcoin Core 27.0 棄用了「libbitcoinconsensus」庫，該庫近十年來一直是網路不可或缺的一部分。該程式庫的功能將不再接收 Taproot 協定升級以外的更新，這標誌著向「libbitcoinkernel」的轉變。這個新庫提供了一個強大的 API，可以直接與未花費的交易輸出 (UTXO) 集進行交互，以進行交易和區塊驗證。

Enhanced Security Protocols

增強的安全協議

The update introduces a major upgrade to data handling by altering the format of the mempool.dat file, which stores unconfirmed transactions. The new format employs XOR encryption of transaction contents, safeguarding it from potential alterations by external software such as antivirus programs. For those requiring a downgrade, a fallback option to the old format is available.

該更新透過更改儲存未確認交易的 mempool.dat 檔案的格式，對資料處理進行了重大升級。新格式採用交易內容的 XOR 加密，保護其免受防毒程式等外部軟體的潛在變更。對於需要降級的用戶，可以使用舊格式的後備選項。

Network and Peer-to-Peer Enhancements

網路和點對點增強

Bitcoin Core 27.0 rolls out the second version of BIP324 (BIP324 v2) transport layer by default, enhancing secure connection protocols across the network. This improvement underscores the importance of precise system time settings by node operators for maintaining consensus integrity, as network-adjusted time has been removed from the consensus code.

Bitcoin Core 27.0預設推出第二版BIP324（BIP324 v2）傳輸層，增強整個網路的安全連線協定。這項改進強調了節點運營商精確的系統時間設定對於維護共識完整性的重要性，因為網路調整時間已從共識程式碼中刪除。

Mempool Policy Innovations

Mempool 政策創新

A pivotal change introduced in version 27.0 is the implementation of Topologically Restricted Until Confirmation (TRUC) transactions. This new policy, currently applicable only on test networks, aims to improve the incentive structure surrounding transaction replacements and fee-bumping reliability by imposing constraints on the spending of unconfirmed outputs.

27.0 版本中引入的一個關鍵變更是拓撲限制直至確認 (TRUC) 交易的實現。這項新政策目前僅適用於測試網絡，旨在透過對未經確認的輸出的支出施加限制來改善圍繞交易替代和費用上漲可靠性的激勵結構。

RPC and External Signing Updates

RPC 和外部簽章更新

Adjustments have been made to the "addnode" RPC to align with the new "-v2transport" default setting. Support for external signing on Windows systems has been temporarily suspended due to dependencies on an outdated library, but plans are underway to re-enable it once an alternative solution is integrated.

對“addnode”RPC 進行了調整，以與新的“-v2transport”預設設定保持一致。由於依賴過時的程式庫，Windows 系統上對外部簽章的支援已暫時暫停，但我們正在計劃在整合替代解決方案後重新啟用它。

Development and Wallet Optimization

開發和錢包優化

The development process for Bitcoin Core now requires a C++20 capable compiler, reflecting the project's commitment to adopting modern programming standards. Wallet enhancements include the implementation of the CoinGrinder algorithm to optimize transaction cost-efficiency at higher fee rates and adjustments to the Branch and Bound algorithm to accommodate specific transaction fee strategies.

Bitcoin Core 的開發過程現在需要一個支援 C++20 的編譯器，這反映了該專案對採用現代程式設計標準的承諾。錢包增強功能包括實施 CoinGrinder 演算法以在更高的費率下優化交易成本效率，以及調整 Branch and Bound 演算法以適應特定的交易費用策略。

Upgrade Instructions

升級說明

Users are advised to upgrade to Bitcoin Core 27.0 by shutting down any older versions running and installing the new release. The process varies slightly depending on the operating system but remains straightforward. Compatibility extends to systems with Linux Kernel 3.17+, macOS 11.0+, and Windows 7 or newer.

建議用戶透過關閉任何運行的舊版本並安裝新版本來升級到 Bitcoin Core 27.0。該過程根據作業系統的不同略有不同，但仍然很簡單。相容性擴展到採用 Linux Kernel 3.17+、macOS 11.0+ 和 Windows 7 或更高版本的系統。

Implications for the Bitcoin Network

對比特幣網路的影響

The release of Bitcoin Core 27.0 is expected to significantly impact the operational dynamics of the Bitcoin network's underlying infrastructure. With enhancements focused on security, efficiency, and robust transaction handling, this version aims to reinforce the network's resilience against evolving threats and address scalability challenges. It underscores the ongoing commitment to maintaining Bitcoin's position as a secure and reliable digital currency for the global financial landscape.

Bitcoin Core 27.0 的發布預計將顯著影響比特幣網路底層基礎設施的營運動態。此版本的增強功能著重於安全性、效率和強大的事務處理，旨在增強網路抵禦不斷變化的威脅的能力並解決可擴展性挑戰。它強調了我們對維持比特幣作為全球金融領域安全可靠的數位貨幣地位的持續承諾。