diff --git a/History.md b/History.md
index 291d7bba..eb812c2c 100644
--- a/History.md
+++ b/History.md
@@ -1,3 +1,9 @@
+4.1.2 / 2014-05-08
+==================
+
+ * fix `req.host` for IPv6 literals
+ * fix `res.jsonp` error if callback param is object
+
 4.1.1 / 2014-04-27
 ==================
 
@@ -46,6 +52,12 @@
    - `app.route()` - Proxy to the app's `Router#route()` method to create a new route
    - Router & Route - public API
 
+3.5.3 / 2014-05-08
+==================
+
+ * fix `req.host` for IPv6 literals
+ * fix `res.jsonp` error if callback param is object
+
 3.5.2 / 2014-04-24
 ==================
 
diff --git a/lib/request.js b/lib/request.js
index 82e0fb11..de62e9de 100644
--- a/lib/request.js
+++ b/lib/request.js
@@ -348,7 +348,13 @@ req.__defineGetter__('host', function(){
   var host = trustProxy && this.get('X-Forwarded-Host');
   host = host || this.get('Host');
   if (!host) return;
-  return host.split(':')[0];
+  var offset = host[0] === '['
+    ? host.indexOf(']') + 1
+    : 0;
+  var index = host.indexOf(':', offset);
+  return ~index
+    ? host.substring(0, index)
+    : host;
 });
 
 /**
diff --git a/lib/response.js b/lib/response.js
index 786833cd..775482c0 100644
--- a/lib/response.js
+++ b/lib/response.js
@@ -232,9 +232,13 @@ res.jsonp = function(obj){
   // content-type
   this.get('Content-Type') || this.set('Content-Type', 'application/json');
 
+  // fixup callback
+  if (Array.isArray(callback)) {
+    callback = callback[0];
+  }
+
   // jsonp
-  if (callback) {
-    if (Array.isArray(callback)) callback = callback[0];
+  if (callback && 'string' === typeof callback) {
     this.set('Content-Type', 'text/javascript');
     var cb = callback.replace(/[^\[\]\w$.]/g, '');
     body = 'typeof ' + cb + ' === \'function\' && ' + cb + '(' + body + ');';
diff --git a/package.json b/package.json
index 2753dff5..0e3449d8 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "express",
   "description": "Sinatra inspired web development framework",
-  "version": "4.1.1",
+  "version": "4.1.2",
   "author": "TJ Holowaychuk <tj@vision-media.ca>",
   "contributors": [
     {
diff --git a/test/req.host.js b/test/req.host.js
index 4c5c76ba..74024844 100644
--- a/test/req.host.js
+++ b/test/req.host.js
@@ -18,6 +18,19 @@ describe('req', function(){
       .expect('example.com', done);
     })
 
+    it('should strip port number', function(done){
+      var app = express();
+
+      app.use(function(req, res){
+        res.end(req.host);
+      });
+
+      request(app)
+      .post('/')
+      .set('Host', 'example.com:3000')
+      .expect('example.com', done);
+    })
+
     it('should return undefined otherwise', function(done){
       var app = express();
 
@@ -30,5 +43,31 @@ describe('req', function(){
       .post('/')
       .expect('undefined', done);
     })
+
+    it('should work with IPv6 Host', function(done){
+      var app = express();
+
+      app.use(function(req, res){
+        res.end(req.host);
+      });
+
+      request(app)
+      .post('/')
+      .set('Host', '[::1]')
+      .expect('[::1]', done);
+    })
+
+    it('should work with IPv6 Host and port', function(done){
+      var app = express();
+
+      app.use(function(req, res){
+        res.end(req.host);
+      });
+
+      request(app)
+      .post('/')
+      .set('Host', '[::1]:3000')
+      .expect('[::1]', done);
+    })
   })
 })
diff --git a/test/res.jsonp.js b/test/res.jsonp.js
index 21a961ce..46381cf7 100644
--- a/test/res.jsonp.js
+++ b/test/res.jsonp.js
@@ -37,6 +37,22 @@ describe('res', function(){
           })
     })
 
+    it('should ignore object callback parameter with jsonp', function(done){
+      var app = express();
+
+      app.use(function(req, res){
+        res.jsonp({ count: 1 });
+      });
+
+      request(app)
+      .get('/?callback[a]=something')
+      .end(function(err, res){
+        res.headers.should.have.property('content-type', 'application/json');
+        res.text.should.equal('{"count":1}');
+        done();
+      })
+    })
+
     it('should allow renaming callback', function(done){
       var app = express();
 
@@ -205,7 +221,7 @@ describe('res', function(){
     })
   })
 
-  describe('.json(status, object)', function(){
+  describe('.jsonp(status, object)', function(){
     it('should respond with json and set the .statusCode', function(done){
       var app = express();
 
@@ -224,7 +240,7 @@ describe('res', function(){
     })
   })
 
-  describe('.json(object, status)', function(){
+  describe('.jsonp(object, status)', function(){
     it('should respond with json and set the .statusCode for backwards compat', function(done){
       var app = express();