From a9d811a9760720d29eb1be3b738e59a1621cc6d6 Mon Sep 17 00:00:00 2001
From: Gregory Maxwell <greg@xiph.org>
Date: Thu, 26 Jul 2012 17:20:20 -0400
Subject: [PATCH] Switch testnet3's message bytes to avoid connecting to old
 nodes.

The new bytes are based on "11" to appeal to Gavin's 11 fetish.

This breaks existing testnet3 nodes as the blockchain files
are also versioned.  To upgrade a node delete everything
except wallet.dat from your .bitcoin/testnet3 folder.
---
 src/main.cpp | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index 98eff597fc..0c636cdec1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1978,10 +1978,10 @@ bool LoadBlockIndex(bool fAllowNew)
 {
     if (fTestNet)
     {
-        pchMessageStart[0] = 0xfa;
-        pchMessageStart[1] = 0xbf;
-        pchMessageStart[2] = 0xb5;
-        pchMessageStart[3] = 0xda;
+        pchMessageStart[0] = 0x0b;
+        pchMessageStart[1] = 0x11;
+        pchMessageStart[2] = 0x09;
+        pchMessageStart[3] = 0x07;
         hashGenesisBlock = uint256("000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943");
     }