diff --git a/.gitignore b/.gitignore
index 45981f3..be85d62 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,3 @@
 node_modules
 test/npm-debug.log
 test/server
-dist/
diff --git a/HISTORY.md b/HISTORY.md
index 4b03c98..dd5ab1d 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,9 +1,17 @@
 # History
 
-## 1.1.2 (UNRELEASED)
+## 1.1.4 (UNRELEASED)
 
 * Added a errorHandler option to createServer.
 
+## 1.1.3
+
+* requires node 6
+
+## 1.1.2
+
+* use last protodef
+
 ## 1.1.1
 
 * update to yggdrasil 0.2.0
diff --git a/browser.js b/browser.js
deleted file mode 100644
index e696e23..0000000
--- a/browser.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('./dist/browser.js');
diff --git a/circle.yml b/circle.yml
index 824c958..d4c5f41 100644
--- a/circle.yml
+++ b/circle.yml
@@ -2,7 +2,7 @@ machine:
   environment:
     MC_SERVER_JAR_DIR: /home/ubuntu/node-minecraft-protocol/minecraft-server/
   node:
-    version: 4
+    version: 6
   java:
     version: openjdk7
 dependencies:
diff --git a/gulpfile.js b/gulpfile.js
deleted file mode 100644
index d3e62ff..0000000
--- a/gulpfile.js
+++ /dev/null
@@ -1,31 +0,0 @@
-var gulp = require('gulp');
-
-var plumber = require('gulp-plumber');
-var babel = require('gulp-babel');
-var options = {
-  presets: ['es2015']
-};
-
-var sourcemaps = require('gulp-sourcemaps');
-
-gulp.task('compile', function() {
-  return gulp
-    .src('src/**/*.js')
-    .pipe(plumber({
-      errorHandler: function(err) {
-        console.error(err.stack);
-        this.emit('end');
-      }
-    }))
-    .pipe(sourcemaps.init())
-    .pipe(babel(options))
-    .pipe(plumber.stop())
-    .pipe(sourcemaps.write('maps/'))
-    .pipe(gulp.dest('dist/'));
-});
-
-gulp.task('watch', function() {
-  return gulp.watch('src/**/*.js', ['compile']);
-});
-
-gulp.task('default', ['compile']);
diff --git a/index.js b/index.js
deleted file mode 100644
index f843a90..0000000
--- a/index.js
+++ /dev/null
@@ -1 +0,0 @@
-module.exports = require('./dist/index.js');
diff --git a/package.json b/package.json
index 0ace9ce..d752d5c 100644
--- a/package.json
+++ b/package.json
@@ -1,14 +1,14 @@
 {
   "name": "minecraft-protocol",
-  "version": "1.1.1",
+  "version": "1.1.3",
   "description": "Parse and serialize minecraft packets, plus authentication and encryption.",
-  "main": "index.js",
+  "main": "src/index.js",
   "repository": {
     "type": "git",
     "url": "git://github.com/PrismarineJS/node-minecraft-protocol.git"
   },
   "scripts": {
-    "prepublish": "gulp && require-self",
+    "prepublish": "require-self",
     "test": "mocha --recursive --reporter spec"
   },
   "keywords": [
@@ -24,22 +24,16 @@
   "author": "Andrew Kelley",
   "license": "BSD-3-Clause",
   "engines": {
-    "node": ">=4"
+    "node": ">=6"
   },
-  "browser": "browser.js",
+  "browser": "src/browser.js",
   "devDependencies": {
-    "babel-preset-es2015": "^6.3.13",
     "espower-loader": "^1.0.0",
-    "gulp": "^3.9.0",
-    "gulp-babel": "^6.1.1",
-    "gulp-plumber": "^1.0.1",
-    "gulp-sourcemaps": "^2.0.0",
     "intelli-espower-loader": "^1.0.0",
     "minecraft-wrap": "^1.0.0",
     "mocha": "^3.0.2",
     "power-assert": "^1.0.0",
-    "require-self": "^0.1.0",
-    "source-map-support": "^0.4.0"
+    "require-self": "^0.1.0"
   },
   "dependencies": {
     "buffer-equal": "^1.0.0",
@@ -49,7 +43,7 @@
     "lodash.merge": "^4.3.0",
     "minecraft-data": "^2.11.0",
     "prismarine-nbt": "^1.0.0",
-    "protodef": "^1.2.3",
+    "protodef": "^1.3.0",
     "readable-stream": "^2.0.5",
     "ursa-purejs": "^0.0.3",
     "uuid-1345": "^0.99.6",
diff --git a/src/client/pluginChannels.js b/src/client/pluginChannels.js
index 92500ae..4b8b87a 100644
--- a/src/client/pluginChannels.js
+++ b/src/client/pluginChannels.js
@@ -7,7 +7,7 @@ module.exports = function(client, options) {
   var proto = new ProtoDef();
   proto.addTypes(mcdata.protocol.types);
   proto.addTypes(minecraft);
-  proto.addTypes({'registerarr': [readDumbArr, writeDumbArr, sizeOfDumbArr]});
+  proto.addType('registerarr',[readDumbArr, writeDumbArr, sizeOfDumbArr]);
 
   client.registerChannel = registerChannel;
   client.unregisterChannel = unregisterChannel;
diff --git a/src/transforms/serializer.js b/src/transforms/serializer.js
index d5dcafa..5f8e9be 100644
--- a/src/transforms/serializer.js
+++ b/src/transforms/serializer.js
@@ -18,12 +18,18 @@ function recursiveAddTypes(protocol,protocolData,path)
   recursiveAddTypes(protocol,get(protocolData,path.shift()),path);
 }
 
+const protocols={};
+
 function createProtocol(state,direction,version,customPackets)
 {
+  const key=state+";"+direction+";"+version;
+  if(protocols[key])
+    return protocols[key];
   const proto = new ProtoDef();
   proto.addTypes(minecraft);
   const mcData=require("minecraft-data")(version);
   recursiveAddTypes(proto,merge(mcData.protocol,get(customPackets,[mcData.version.majorVersion])),[state,direction]);
+  protocols[key]=proto;
   return proto;
 }