Set version to 5.2 and update CHANGELOG

CHANGELOG.md

@@ -1,5 +1,15 @@
 # Changelog
 
+## Build 5.2.0 (PENDING)
+- Fixed important bug caused by bad calculated "more work" blockchain
+  - Previous "more work" (introduced on build 1.5.0.0 2017-02-15) was calculated by SUM(compact_target), but compact_target is a linear value (not exponential)
+  - Current "more work" will be equals to "aggregated hashrate" that is SUM(CompactTargetToHashRate(compact_target)) where "hashrate" is exponential
+  - This important bug was found by Herman Schoenfeld ([email protected])
+- NAT limited to 7 seconds by default as proposed by Herman Schoenfeld ([email protected]) in order to minimize a warp timestamp attack. This value can be configured.
+- Fix invalid "balance" rounded decimals value caused by FPC (daemon or Linux versions)
+- Improvements on hashlib4pascal library by Ugochukwu Mmaduekwe <https://github.com/Xor-el>
+- Minor improvements and fixed bugs
+
 ## Build 5.1.0 - 2019-11-25
 - Fixed FastPropagation bug when Operations are not on Mempool and needs to obtain from a node with different version (V4 vs V5)
 - Fixed TOpChangeAccountInfo bug when changing Account.Data (not available on V4, V5 must not propagate while on V4 protocol)

src/core/UConst.pas

@@ -129,10 +129,10 @@ Const
 
   CT_MagicNetIdentification = {$IFDEF PRODUCTION}$0A043580{$ELSE}$05000004{$ENDIF};
 
-  CT_NetProtocol_Version: Word = 9; // TODO Need to upgrade to 10 after V5 Hardfork
+  CT_NetProtocol_Version: Word = 10;
   // IMPORTANT NOTE!!!
   // NetProtocol_Available MUST BE always >= NetProtocol_version
-  CT_NetProtocol_Available: Word = {$IFDEF PRODUCTION}11{$ELSE}11{$ENDIF};
+  CT_NetProtocol_Available: Word = {$IFDEF PRODUCTION}12{$ELSE}12{$ENDIF};
 
   CT_MaxAccountOperationsPerBlockWithoutFee = 1;
 
@@ -195,7 +195,7 @@ Const
   CT_OpSubtype_Data_Signer                = 103;
   CT_OpSubtype_Data_Receiver              = 104;
 
-  CT_ClientAppVersion : String = {$IFDEF PRODUCTION}'5.1'{$ELSE}{$IFDEF TESTNET}'TESTNET 5.1'{$ELSE}{$ENDIF}{$ENDIF};
+  CT_ClientAppVersion : String = {$IFDEF PRODUCTION}'5.2'{$ELSE}{$IFDEF TESTNET}'TESTNET 5.2'{$ELSE}{$ENDIF}{$ENDIF};
 
   CT_Discover_IPs = {$IFDEF PRODUCTION}'bpascal1.dynamic-dns.net;bpascal2.dynamic-dns.net;pascalcoin1.dynamic-dns.net;pascalcoin2.dynamic-dns.net;pascalcoin1.dns1.us;pascalcoin2.dns1.us;pascalcoin1.dns2.us;pascalcoin2.dns2.us'
                     {$ELSE}'pascaltestnet1.dynamic-dns.net;pascaltestnet2.dynamic-dns.net;pascaltestnet1.dns1.us;pascaltestnet2.dns1.us'{$ENDIF};