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   1 <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Version of the protocol as appearing in network message headers."><title>PROTOCOL_VERSION in bdk_chain::bitcoin::p2p - Rust</title><script>if(window.location.protocol!=="file:")document.head.insertAdjacentHTML("beforeend","SourceSerif4-Regular-6b053e98.ttf.woff2,FiraSans-Regular-0fe48ade.woff2,FiraSans-Medium-e1aa3f0a.woff2,SourceCodePro-Regular-8badfe75.ttf.woff2,SourceCodePro-Semibold-aa29a496.ttf.woff2".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="../../../static.files/${f}">`).join(""))</script><link rel="stylesheet" href="../../../static.files/normalize-9960930a.css"><link rel="stylesheet" href="../../../static.files/rustdoc-46132b98.css"><meta name="rustdoc-vars" data-root-path="../../../" data-static-root-path="../../../static.files/" data-current-crate="bdk_chain" data-themes="" data-resource-suffix="" data-rustdoc-version="1.85.0-nightly (4ba4ac612 2024-12-18)" data-channel="nightly" data-search-js="search-036cda7a.js" data-settings-js="settings-0f613d39.js" ><script src="../../../static.files/storage-59e33391.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../../static.files/main-5f194d8c.js"></script><noscript><link rel="stylesheet" href="../../../static.files/noscript-893ab5e7.css"></noscript><link rel="alternate icon" type="image/png" href="../../../static.files/favicon-32x32-6580c154.png"><link rel="icon" type="image/svg+xml" href="../../../static.files/favicon-044be391.svg"></head><body class="rustdoc constant"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle" title="show sidebar"></button><a class="logo-container" href="../../../bdk_chain/index.html"><img src="https://github.com/bitcoindevkit/bdk/raw/master/static/bdk.png" alt=""></a></nav><nav class="sidebar"><div class="sidebar-crate"><a class="logo-container" href="../../../bdk_chain/index.html"><img src="https://github.com/bitcoindevkit/bdk/raw/master/static/bdk.png" alt="logo"></a><h2><a href="../../../bdk_chain/index.html">bdk_<wbr>chain</a><span class="version">0.21.1</span></h2></div><div class="sidebar-elems"><div id="rustdoc-modnav"><h2><a href="index.html">In bdk_<wbr>chain::<wbr>bitcoin::<wbr>p2p</a></h2></div></div></nav><div class="sidebar-resizer"></div><main><div class="width-limiter"><rustdoc-search></rustdoc-search><section id="main-content" class="content"><div class="main-heading"><span class="rustdoc-breadcrumbs"><a href="../../index.html">bdk_chain</a>::<wbr><a href="../index.html">bitcoin</a>::<wbr><a href="index.html">p2p</a></span><h1>Constant <span class="constant">PROTOCOL_VERSION</span><button id="copy-path" title="Copy item path to clipboard">Copy item path</button></h1><rustdoc-toolbar></rustdoc-toolbar><span class="sub-heading"></span></div><pre class="rust item-decl"><code>pub const PROTOCOL_VERSION: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u32.html">u32</a> = 70001; // 70_001u32</code></pre><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Version of the protocol as appearing in network message headers.</p>
   2 <p>This constant is used to signal to other peers which features you support. Increasing it implies
   3 that your software also supports every feature prior to this version. Doing so without support
   4 may lead to you incorrectly banning other peers or other peers banning you.</p>
   5 <p>These are the features required for each version:
   6 70016 - Support receiving <code>wtxidrelay</code> message between <code>version</code> and <code>verack</code> message
   7 70015 - Support receiving invalid compact blocks from a peer without banning them
   8 70014 - Support compact block messages <code>sendcmpct</code>, <code>cmpctblock</code>, <code>getblocktxn</code> and <code>blocktxn</code>
   9 70013 - Support <code>feefilter</code> message
  10 70012 - Support <code>sendheaders</code> message and announce new blocks via headers rather than inv
  11 70011 - Support NODE_BLOOM service flag and don’t support bloom filter messages if it is not set
  12 70002 - Support <code>reject</code> message
  13 70001 - Support bloom filter messages <code>filterload</code>, <code>filterclear</code> <code>filteradd</code>, <code>merkleblock</code> and FILTERED_BLOCK inventory type
  14 60002 - Support <code>mempool</code> message
  15 60001 - Support <code>pong</code> message and nonce in <code>ping</code> message</p>
  16 </div></details></section></div></main></body></html>