From 9a4a991a4f6fee11f16908fd5b2480f69b828852 Mon Sep 17 00:00:00 2001
From: Nick Paterno <43416138+nicholasjpaterno@users.noreply.github.com>
Date: Wed, 22 Jan 2020 13:07:52 -0500
Subject: [PATCH] Change VM hardfork default to `muirGlacier` (#541)

---
 README.md                    | 2 +-
 lib/blockchain_double.js     | 2 +-
 lib/database/txserializer.js | 2 +-
 lib/utils/transaction.js     | 2 +-
 typings/index.d.ts           | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 8e9204efad..abf39638ab 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,7 @@ Both `.provider()` and `.server()` take a single object which allows you to spec
 * `"account_keys_path"`: `String` - Specifies a file to save accounts and private keys to, for testing.
 * `"vmErrorsOnRPCResponse"`: `boolean` - Whether or not to transmit transaction failures as RPC errors. Set to `false` for error reporting behaviour which is compatible with other clients such as geth and Parity. This is `true` by default to replicate the error reporting behavior of previous versions of ganache.
 * `"hdPath"`: The hierarchical deterministic path to use when generating accounts. Default: "m/44'/60'/0'/0/"
-* `"hardfork"`: `String` Allows users to specify which hardfork should be used. Supported hardforks are `byzantium`, `constantinople`, `petersburg`, and `istanbul` (default).
+* `"hardfork"`: `String` Allows users to specify which hardfork should be used. Supported hardforks are `byzantium`, `constantinople`, `petersburg`, `istanbul`, and `muirGlacier` (default).
 * `"allowUnlimitedContractSize"`: `boolean` - Allows unlimited contract sizes while debugging (NOTE: this setting is often used in conjuction with an increased `gasLimit`). By setting this to `true`, the check within the EVM for contract size limit of 24KB (see [EIP-170](https://git.io/vxZkK)) is bypassed. Setting this to `true` **will** cause `ganache-core` to behave differently than production environments. (default: `false`; **ONLY** set to `true` during debugging).
 * `"gasPrice"`: `String::hex` Sets the default gas price for transactions if not otherwise specified. Must be specified as a `hex` encoded string in `wei`. Defaults to `"0x77359400"` (2 `gwei`).
 * `"gasLimit"`: `String::hex | number` Sets the block gas limit. Must be specified as a `hex` string or `number`(integer). Defaults to `"0x6691b7"`.
diff --git a/lib/blockchain_double.js b/lib/blockchain_double.js
index 49e3f7a9b0..c111a0c290 100644
--- a/lib/blockchain_double.js
+++ b/lib/blockchain_double.js
@@ -44,7 +44,7 @@ const defaultOptions = {
   defaultTransactionGasLimit: "0x15f90",
   time: null,
   debug: false,
-  hardfork: "istanbul",
+  hardfork: "muirGlacier",
   allowUnlimitedContractSize: false
 };
 
diff --git a/lib/database/txserializer.js b/lib/database/txserializer.js
index 684be9db55..10de485572 100644
--- a/lib/database/txserializer.js
+++ b/lib/database/txserializer.js
@@ -31,7 +31,7 @@ const decode = function(json, done) {
     comment: "Local test network"
   };
 
-  let hardfork = "istanbul";
+  let hardfork = "muirGlacier";
   if (json._options) {
     hardfork = json._options.hardfork;
     commonOptions.chainId = json._options.chainId;
diff --git a/lib/utils/transaction.js b/lib/utils/transaction.js
index b619ebaa1f..69c6197cb1 100644
--- a/lib/utils/transaction.js
+++ b/lib/utils/transaction.js
@@ -152,7 +152,7 @@ module.exports = class Transaction extends EthereumJsTransaction {
           comment: "Local test network",
           bootstrapNodes: []
         },
-        "istanbul"
+        "muirGlacier"
       );
     }
     super(undefined, { common });
diff --git a/typings/index.d.ts b/typings/index.d.ts
index 08cab91345..9942eeb329 100644
--- a/typings/index.d.ts
+++ b/typings/index.d.ts
@@ -14,7 +14,7 @@ declare module "ganache-core" {
       fork_block_number?: string | number;
       gasLimit?: string | number;
       gasPrice?: string;
-      hardfork?: "byzantium" | "constantinople" | "petersburg" | "istanbul";
+      hardfork?: "byzantium" | "constantinople" | "petersburg" | "istanbul" | "muirGlacier";
       hd_path?: string;
       locked?: boolean;
       logger?: {