diff --git a/README.md b/README.md
index 9320b6c..ed39f5e 100644
--- a/README.md
+++ b/README.md
@@ -29,13 +29,13 @@ Terrain is **not**:
 # Table of contents
 
 <!-- toc -->
-
-- [Setup](#setup)
-- [Getting Started](#getting-started)
-- [Migrating CosmWasm Contracts on Terra](#migrating-cosmwasm-contracts-on-terra)
-- [Use Terrain Main Branch Locally](#use-terrain-main-branch-locally)
-- [Terrain Commands](#terrain-commands)
-
+* [Terrain](#terrain)
+* [Table of contents](#table-of-contents)
+* [Setup](#setup)
+* [Getting Started](#getting-started)
+* [Migrating CosmWasm Contracts on Terra](#migrating-cosmwasm-contracts-on-terra)
+* [Use Terrain Main Branch Locally](#use-terrain-main-branch-locally)
+* [Terrain Commands](#terrain-commands)
 <!-- tocstop -->
 
 # Setup
@@ -427,7 +427,6 @@ npm unlink terrain
 # Terrain Commands
 
 <!-- commands -->
-
 * [`terrain code:new NAME`](#terrain-codenew-name)
 * [`terrain code:store CONTRACT`](#terrain-codestore-contract)
 * [`terrain console`](#terrain-console)
@@ -459,7 +458,7 @@ DESCRIPTION
   Generate new contract.
 ```
 
-_View code: [src/commands/code/new.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/code/new.ts)_
+_See code: [src/commands/code/new.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/code/new.ts)_
 
 ## `terrain code:store CONTRACT`
 
@@ -483,7 +482,7 @@ DESCRIPTION
   Store code on chain.
 ```
 
-_View code: [src/commands/code/store.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/code/store.ts)_
+_See code: [src/commands/code/store.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/code/store.ts)_
 
 ## `terrain console`
 
@@ -504,7 +503,7 @@ DESCRIPTION
   contracts.
 ```
 
-_View code: [src/commands/console.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/console.ts)_
+_See code: [src/commands/console.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/console.ts)_
 
 ## `terrain contract:instantiate CONTRACT`
 
@@ -529,7 +528,7 @@ DESCRIPTION
   Instantiate the contract.
 ```
 
-_View code: [src/commands/contract/instantiate.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/contract/instantiate.ts)_
+_See code: [src/commands/contract/instantiate.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/contract/instantiate.ts)_
 
 ## `terrain contract:migrate [CONTRACT]`
 
@@ -538,9 +537,11 @@ Migrate the contract.
 ```
 USAGE
   $ terrain contract:migrate [CONTRACT] --signer <value> [--no-rebuild] [--network <value>] [--config-path <value>]
-    [--refs-path <value>] [--keys-path <value>] [--instance-id <value>] [--code-id <value>]
+    [--refs-path <value>] [--keys-path <value>] [--instance-id <value>] [--code-id <value>] [--arm64]
 
 FLAGS
+  --arm64                use rust-optimizer-arm64 for optimization. Not recommended for production, but it will optimize
+                         quicker on arm64 hardware during development.
   --code-id=<value>      target code id for migration
   --config-path=<value>  [default: ./config.terrain.json]
   --instance-id=<value>  [default: default]
@@ -554,7 +555,7 @@ DESCRIPTION
   Migrate the contract.
 ```
 
-_View code: [src/commands/contract/migrate.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/contract/migrate.ts)_
+_See code: [src/commands/contract/migrate.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/contract/migrate.ts)_
 
 ## `terrain contract:updateAdmin CONTRACT ADMIN`
 
@@ -577,7 +578,7 @@ DESCRIPTION
   Update the admin of a contract.
 ```
 
-_View code: [src/commands/contract/updateAdmin.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/contract/updateAdmin.ts)_
+_See code: [src/commands/contract/updateAdmin.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/contract/updateAdmin.ts)_
 
 ## `terrain deploy CONTRACT`
 
@@ -607,11 +608,11 @@ DESCRIPTION
   Build wasm bytecode, store code on chain and instantiate.
 ```
 
-_View code: [src/commands/deploy.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/deploy.ts)_
+_See code: [src/commands/deploy.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/deploy.ts)_
 
 ## `terrain help [COMMAND]`
 
-Display help for terrain.
+display help for terrain
 
 ```
 USAGE
@@ -624,10 +625,10 @@ FLAGS
   --all  see all commands in CLI
 
 DESCRIPTION
-  Display help for terrain.
+  display help for terrain
 ```
 
-_View code: [@oclif/plugin-help](https://github.com/oclif/plugin-help/blob/v3.2.18/src/commands/help.ts)_
+_See code: [@oclif/plugin-help](https://github.com/oclif/plugin-help/blob/v3.2.18/src/commands/help.ts)_
 
 ## `terrain new NAME`
 
@@ -657,7 +658,7 @@ EXAMPLES
   $ terrain new --framework next awesome-dapp --path path/to/dapp
 ```
 
-_View code: [src/commands/new.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/new.ts)_
+_See code: [src/commands/new.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/new.ts)_
 
 ## `terrain sync-refs [FILE]`
 
@@ -675,25 +676,25 @@ DESCRIPTION
   Sync configuration with frontend app.
 ```
 
-_View code: [src/commands/sync-refs.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/sync-refs.ts)_
+_See code: [src/commands/sync-refs.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/sync-refs.ts)_
 
 ## `terrain task:new [TASK]`
 
-Create new task.
+create new task
 
 ```
 USAGE
   $ terrain task:new [TASK]
 
 DESCRIPTION
-  Create new task.
+  create new task
 ```
 
-_View code: [src/commands/task/new.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/task/new.ts)_
+_See code: [src/commands/task/new.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/task/new.ts)_
 
 ## `terrain task:run [TASK]`
 
-Run predefined task.
+run predefined task
 
 ```
 USAGE
@@ -707,10 +708,10 @@ FLAGS
   --refs-path=<value>    [default: refs.terrain.json]
 
 DESCRIPTION
-  Run predefined task.
+  run predefined task
 ```
 
-_View code: [src/commands/task/run.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/task/run.ts)_
+_See code: [src/commands/task/run.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/task/run.ts)_
 
 ## `terrain test CONTRACT-NAME`
 
@@ -732,7 +733,7 @@ EXAMPLES
   $ terrain test counter --no-fail-fast
 ```
 
-_View code: [src/commands/test.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/test.ts)_
+_See code: [src/commands/test.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/test.ts)_
 
 ## `terrain wallet:new`
 
@@ -750,6 +751,5 @@ DESCRIPTION
   Generate a new wallet.
 ```
 
-_View code: [src/commands/wallet/new.ts](https://github.com/terra-money/terrain/blob/v0.2.0/src/commands/wallet/new.ts)_
-
+_See code: [src/commands/wallet/new.ts](https://github.com/terra-money/terrain/blob/v0.3.0/src/commands/wallet/new.ts)_
 <!-- commandsstop -->
diff --git a/package-lock.json b/package-lock.json
index 98f88c1..3d936ed 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@terra-money/terrain",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@terra-money/terrain",
-      "version": "0.2.0",
+      "version": "0.3.0",
       "license": "MIT",
       "dependencies": {
         "@oclif/command": "^1.8.0",
@@ -20092,4 +20092,4 @@
       "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q=="
     }
   }
-}
\ No newline at end of file
+}
diff --git a/package.json b/package.json
index 6fbdda0..04fad86 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@terra-money/terrain",
   "description": "Terra development environment",
-  "version": "0.2.0",
+  "version": "0.3.0",
   "__comment": "^ update template package.json to the same version when publish",
   "author": "Supanat Potiwarakorn @iboss-ptk",
   "bugs": "https://github.com/terra-money/terrain/issues",