diff --git a/src/blocks/checkpoints.dat b/src/blocks/checkpoints.dat
index 249956e7..407a994a 100644
Binary files a/src/blocks/checkpoints.dat and b/src/blocks/checkpoints.dat differ
diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp
index e2249d21..8bb63ad0 100644
--- a/src/cryptonote_core/blockchain.cpp
+++ b/src/cryptonote_core/blockchain.cpp
@@ -78,10 +78,10 @@ static const struct {
   // version 1 from the start of the blockchain
   { 1, 1, 0, 1341378000 },
 
-  // version 2 can start from block 1009827, setup on the 20th of september. No vote.
+  // version 2 starts from block 1009827, which is on or around the 20th of March, 2016. Fork time finalised on 2015-09-20. No fork voting occurs for the v2 fork.
   { 2, 1009827, 0, 1442763710 },
 };
-static const uint64_t mainnet_hard_fork_version_1_till = 750000;
+static const uint64_t mainnet_hard_fork_version_1_till = 1009826;
 
 static const struct {
   uint8_t version;
@@ -91,8 +91,11 @@ static const struct {
 } testnet_hard_forks[] = {
   // version 1 from the start of the blockchain
   { 1, 1, 0, 1341378000 },
+
+  // version 2 starts from block 624634, which is on or around the 23rd of November, 2015. Fork time finalised on 2015-11-20. No fork voting occurs for the v2 fork.
+  { 2, 624634, 0, 1445355000 },
 };
-static const uint64_t testnet_hard_fork_version_1_till = 540000;
+static const uint64_t testnet_hard_fork_version_1_till = 624633;
 
 //------------------------------------------------------------------
 Blockchain::Blockchain(tx_memory_pool& tx_pool) :
diff --git a/src/daemon/command_line_args.h b/src/daemon/command_line_args.h
index 8da470c8..48571cb9 100644
--- a/src/daemon/command_line_args.h
+++ b/src/daemon/command_line_args.h
@@ -82,13 +82,13 @@ namespace daemon_args
   };
   const command_line::arg_descriptor<uint64_t> arg_fast_block_sync = {
     "fast-block-sync"
-  , "Test fast block-sync option using temporarily embedded known block hashes."
+  , "Sync up most of the way by using embedded, known block hashes."
   , 1
   };
   const command_line::arg_descriptor<uint64_t> arg_show_time_stats  = {
     "show-time-stats"
   , "Show time-stats when processing blocks/txs and disk synchronization."
-  , 1
+  , 0
   };
   const command_line::arg_descriptor<uint64_t> arg_db_auto_remove_logs  = {
     "db-auto-remove-logs"