From 3542bcc28304c613b049b8d783bbdff30a227b20 Mon Sep 17 00:00:00 2001
From: Dave Collins <davec@conformal.com>
Date: Wed, 12 Dec 2018 04:21:37 -0600
Subject: [PATCH] chaincfg: Add checkpoints for upcoming release.

This adds a checkpoint to mainnet at height 295940 and testnet at height
83520.

Also, bump the chaincfg module to v1.2.1 so the new checkpoint are
available to consumers.
---
 chaincfg/mainnetparams.go | 1 +
 chaincfg/testnetparams.go | 4 +++-
 go.mod                    | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/chaincfg/mainnetparams.go b/chaincfg/mainnetparams.go
index 8c744d0e90..cb2bb385c5 100644
--- a/chaincfg/mainnetparams.go
+++ b/chaincfg/mainnetparams.go
@@ -68,6 +68,7 @@ var MainNetParams = Params{
 		{189950, newHashFromStr("000000000000007341d8ae2ea7e41f25cee00e1a70a4a3dc1cb055d14ecb2e11")},
 		{214672, newHashFromStr("0000000000000021d5cbeead55cb7fd659f07e8127358929ffc34cd362209758")},
 		{259810, newHashFromStr("0000000000000000ee0fbf469a9f32477ffbb46ebd7a280a53c842ab4243f97c")},
+		{295940, newHashFromStr("0000000000000000148852c8a919addf4043f9f267b13c08df051d359f1622ca")},
 	},
 
 	// The miner confirmation window is defined as:
diff --git a/chaincfg/testnetparams.go b/chaincfg/testnetparams.go
index be4d26d3a3..4459b3f7ff 100644
--- a/chaincfg/testnetparams.go
+++ b/chaincfg/testnetparams.go
@@ -51,7 +51,9 @@ var TestNet3Params = Params{
 	BlockTaxProportion:       1,
 
 	// Checkpoints ordered from oldest to newest.
-	Checkpoints: []Checkpoint{},
+	Checkpoints: []Checkpoint{
+		{83520, newHashFromStr("0000000001e6244d95feae8b598e854905158c7bc781daf874afff88675ef0c8")},
+	},
 
 	// Consensus rule change deployments.
 	//
diff --git a/go.mod b/go.mod
index a12ccc22ab..6ba174465f 100644
--- a/go.mod
+++ b/go.mod
@@ -14,7 +14,7 @@ require (
 	github.com/decred/dcrd/blockchain v1.1.1
 	github.com/decred/dcrd/blockchain/stake v1.1.0
 	github.com/decred/dcrd/certgen v1.0.2
-	github.com/decred/dcrd/chaincfg v1.2.0
+	github.com/decred/dcrd/chaincfg v1.2.1
 	github.com/decred/dcrd/chaincfg/chainhash v1.0.1
 	github.com/decred/dcrd/connmgr v1.0.2
 	github.com/decred/dcrd/database v1.0.3