diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f69f60..e8d893e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,14 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
 
+## [3.4.0] - 2019-02-06
+**Petersburg** (aka `constantinopleFix`) as well as **Goerli** 
+support/readiness by updating to a supporting `ethereumjs-common` version 
+[v1.1.0](https://github.com/ethereumjs/ethereumjs-common/releases/tag/v1.1.0), 
+PR [#86](https://github.com/ethereumjs/ethereumjs-blockchain/pull/86)
+
+[3.4.0]: https://github.com/ethereumjs/ethereumjs-blockchain/compare/v3.3.3...v3.4.0
+
 ## [3.3.3] - 2019-01-03
 - Fixed a bug causing the ``iterate()`` method to fail when an older version
   ``levelup`` DB instance is passed, see PR [#83](https://github.com/ethereumjs/ethereumjs-blockchain/pull/83)
diff --git a/README.md b/README.md
index cba6944..ce5ff2e 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,9 @@ Implements functions for retrieving, manipulating and storing Ethereum's blockch
 
 ### `new Blockchain(opts)`
 Creates new Blockchain object
+-   `opts.chain` **([String](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String) \| [Number](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number))** The chain for the block [default: 'mainnet']
+-   `opts.hardfork` **[String](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String)** Hardfork for the block [default: null, block number-based behavior]
+-   `opts.common` **[Object](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object)** Alternatively pass a Common instance (ethereumjs-common) instead of setting chain/hardfork directly
 - `opts.db` - Database to store blocks and metadata. Should be a [levelup](https://github.com/rvagg/node-levelup) instance.
 - `opts.validate` - this the flag to validate blocks (e.g. Proof-of-Work), latest HF rules supported: ``Constantinople``.
 
diff --git a/package.json b/package.json
index 2e20413..26985ff 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,11 @@
 {
   "name": "ethereumjs-blockchain",
-  "version": "3.3.3",
+  "version": "3.4.0",
   "description": "A module to store and interact with blocks",
   "main": "index.js",
+  "files": [
+    "*.js"
+  ],
   "scripts": {
     "coverage": "nyc npm run test && nyc report --reporter=text-lcov > .nyc_output/lcov.info",
     "coveralls": "npm run coverage && coveralls <.nyc_output/lcov.info",