diff --git a/.gitignore b/.gitignore
index ce7e0308..e28dd3ee 100644
--- a/.gitignore
+++ b/.gitignore
@@ -30,3 +30,6 @@ test.js
 # The rendered API docs files will live in the gh-pages branch
 docs/
 index.html
+
+# Webstorm config folder
+.idea
diff --git a/lib/posts.js b/lib/posts.js
index 6e7068be..33007d19 100644
--- a/lib/posts.js
+++ b/lib/posts.js
@@ -6,6 +6,7 @@
  */
 var CollectionRequest = require( './shared/collection-request' );
 var inherit = require( 'util' ).inherits;
+var _ = require( 'lodash' );
 
 /**
  * PostsRequest extends CollectionRequest to handle the /posts API endpoint
@@ -223,4 +224,56 @@ PostsRequest.prototype.statuses = function() {
 	return this;
 };
 
+/**
+ * Adds the Year filter into the request to retrieve posts for a given year
+ *
+ * @method year
+ * @chainable
+ * @param {Number} year integer representation of year requested
+ * @returns {CollectionRequest} The PostsRequest instance (for chaining)
+ */
+PostsRequest.prototype.year = function( year ) {
+	return this.filter( 'year', year );
+};
+
+/**
+ * Add the monthnum filter into the request to retrieve posts for a given month
+ *
+ * Filters posts by a given month in either Integer or String Format.
+ *
+ * @method month
+ * @chainable
+ * @param {Number|String} month Integer for month or month string ("january")
+ * @returns {CollectionRequest} The PostsRequest instance (for chaining)
+ */
+PostsRequest.prototype.month = function( month ) {
+	if ( _.isString( month ) ) {
+		// Append a arbitrary day and year to the month to parse the string into a Date
+		month = new Date( Date.parse( month + ' 1, 2012' ) );
+		// If month is NaN, then the passed string is not a valid month.
+		if ( isNaN( month ) ) {
+			return this;
+		}
+		// Js Dates are 0 indexed, WP Api requires a 1 indexed integer.
+		month = month.getMonth() + 1;
+	}
+	// If month is a Number, add the monthnum filter to the request
+	if ( _.isNumber( month ) ) {
+		return this.filter( 'monthnum', month );
+	}
+	return this;
+};
+
+/**
+ * Add the day filter into the request to retrieve posts for a given day
+ *
+ * @method day
+ * @chainable
+ * @param {Number} day Integer representation of the day requested
+ * @returns {CollectionRequest} The PostsRequest instance (for chaining)
+ */
+PostsRequest.prototype.day = function( day ) {
+	return this.filter( 'day', day );
+};
+
 module.exports = PostsRequest;
diff --git a/lib/shared/collection-request.js b/lib/shared/collection-request.js
index 15ba266b..57e06a07 100644
--- a/lib/shared/collection-request.js
+++ b/lib/shared/collection-request.js
@@ -179,7 +179,7 @@ CollectionRequest.prototype._renderQuery = function() {
 	// Parse query parameters object into a query string, sorting the object
 	// properties by alphabetical order (consistent property ordering can make
 	// for easier caching of request URIs)
-	var queryString = qs.stringify( queryParams )
+	var queryString = qs.stringify( queryParams, { arrayFormat: 'brackets' } )
 		.split( '&' )
 		.sort()
 		.join( '&' );
diff --git a/package.json b/package.json
index 195482ec..0230ba62 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "li": "^1.0.0",
     "lodash": "^2.4.1",
     "node.extend": "^1.0.10",
-    "qs": "^2.3.3",
+    "qs": "^5.0.0",
     "route-parser": "0.0.2",
     "superagent": "^0.18.0"
   },
@@ -55,6 +55,7 @@
     "grunt-newer": "^0.7.0",
     "grunt-simple-mocha": "^0.4.0",
     "istanbul": "^0.3.22",
+    "jscs": "^2.7.0",
     "jscs-stylish": "^0.3.0",
     "jshint-stylish": "^0.2.0",
     "load-grunt-tasks": "^0.6.0",
diff --git a/tests/lib/posts.js b/tests/lib/posts.js
index 573eff0a..e603c5af 100644
--- a/tests/lib/posts.js
+++ b/tests/lib/posts.js
@@ -184,7 +184,7 @@ describe( 'wp.posts', function() {
 				'page'
 			]);
 
-			var uri = '/wp-json/wp/v2/posts?type%5B0%5D=cpt1&type%5B1%5D=cpt2&type%5B2%5D=page';
+			var uri = '/wp-json/wp/v2/posts?type%5B%5D=cpt1&type%5B%5D=cpt2&type%5B%5D=page';
 			expect( posts._renderURI() ).to.equal( uri );
 		});
 
diff --git a/tests/lib/shared/collection-request.js b/tests/lib/shared/collection-request.js
index 93c31977..6a520cd9 100644
--- a/tests/lib/shared/collection-request.js
+++ b/tests/lib/shared/collection-request.js
@@ -588,6 +588,13 @@ describe( 'CollectionRequest', function() {
 				.equal( '?filter%5Bpost_status%5D=publish&filter%5Bs%5D=Some%20search%20string' );
 		});
 
+		it( 'propery parse array filters', function() {
+			request._filters = { post__in: [ 0, 1 ] };
+			var query = request._renderQuery();
+			expect( query ).to
+				.equal( '?filter%5Bpost__in%5D%5B%5D=0&filter%5Bpost__in%5D%5B%5D=1' );
+		});
+
 		it( 'correctly merges taxonomy and regular filters & renders them in order', function() {
 			request._taxonomyFilters = {
 				cat: [ 7, 10 ]