diff --git a/JSMessagesTableViewController/JSMessageInputView.m b/JSMessagesTableViewController/JSMessageInputView.m
index d092761c2..69b52c4a0 100644
--- a/JSMessagesTableViewController/JSMessageInputView.m
+++ b/JSMessagesTableViewController/JSMessageInputView.m
@@ -66,7 +66,13 @@ - (id)initWithFrame:(CGRect)frame
 
 - (void)setup
 {
-    self.image = [[UIImage imageNamed:@"input-bar"] resizableImageWithCapInsets:UIEdgeInsetsMake(19.0f, 3.0f, 19.0f, 3.0f)];
+    UIImage *barImage = [UIImage imageNamed:@"input-bar"];
+    if ([barImage respondsToSelector:@selector(resizableImageWithCapInsets:)]) {
+        barImage = [barImage resizableImageWithCapInsets:UIEdgeInsetsMake(19.0f, 3.0f, 19.0f, 3.0f)];
+    } else {
+        barImage = [barImage stretchableImageWithLeftCapWidth:3.0f topCapHeight:19.0f];
+    }
+    self.image = barImage;
     self.backgroundColor = [UIColor whiteColor];
     self.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin);
     self.opaque = YES;
@@ -99,7 +105,13 @@ - (void)setupTextView
                                                                                 0.0f,
                                                                                 self.textView.frame.size.width + 2.0f,
                                                                                 self.frame.size.height)];
-    inputFieldBack.image = [[UIImage imageNamed:@"input-field"] resizableImageWithCapInsets:UIEdgeInsetsMake(20.0f, 12.0f, 18.0f, 18.0f)];
+    UIImage *backImage = [UIImage imageNamed:@"input-field"];
+    if ([backImage respondsToSelector:@selector(resizableImageWithCapInsets:)]) {
+        backImage = [backImage resizableImageWithCapInsets:UIEdgeInsetsMake(20.0f, 12.0f, 18.0f, 18.0f)];
+    } else {
+        backImage = [backImage stretchableImageWithLeftCapWidth:12.0f topCapHeight:20.0f];
+    }
+    inputFieldBack.image = backImage;
     inputFieldBack.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
     inputFieldBack.backgroundColor = [UIColor clearColor];
     [self addSubview:inputFieldBack];
@@ -134,6 +146,7 @@ - (void)adjustTextViewHeightBy:(CGFloat)changeInHeight
                                                   0.0f);
     
     self.textView.scrollEnabled = (numLines >= 4);
+    [self.textView scrollRangeToVisible:self.textView.selectedRange];
 }
 
 + (CGFloat)textViewLineHeight
@@ -151,4 +164,4 @@ + (CGFloat)maxHeight
     return ([JSMessageInputView maxLines] + 1.0f) * [JSMessageInputView textViewLineHeight];
 }
 
-@end
\ No newline at end of file
+@end
diff --git a/JSMessagesTableViewController/JSMessagesViewController.h b/JSMessagesTableViewController/JSMessagesViewController.h
index 452838087..de9ff0a43 100644
--- a/JSMessagesTableViewController/JSMessagesViewController.h
+++ b/JSMessagesTableViewController/JSMessagesViewController.h
@@ -48,7 +48,15 @@ typedef enum {
     JSMessagesViewTimestampPolicyCustom
 } JSMessagesViewTimestampPolicy;
 
-
+#ifndef JSMESSAGES_WEAK
+#if __has_feature(objc_arc_weak)
+#define JSMESSAGES_WEAK weak
+#elif __has_feature(objc_arc)
+#define JSMESSAGES_WEAK unsafe_unretained
+#else
+#define JSMESSAGES_WEAK assign
+#endif
+#endif
 
 @protocol JSMessagesViewDelegate <NSObject>
 @required
@@ -70,8 +78,8 @@ typedef enum {
 
 @interface JSMessagesViewController : UIViewController <UITableViewDataSource, UITableViewDelegate, UITextViewDelegate>
 
-@property (weak, nonatomic) id<JSMessagesViewDelegate> delegate;
-@property (weak, nonatomic) id<JSMessagesViewDataSource> dataSource;
+@property (JSMESSAGES_WEAK, nonatomic) id<JSMessagesViewDelegate> delegate;
+@property (JSMESSAGES_WEAK, nonatomic) id<JSMessagesViewDataSource> dataSource;
 @property (strong, nonatomic) UITableView *tableView;
 @property (strong, nonatomic) JSMessageInputView *inputView;
 @property (assign, nonatomic) CGFloat previousTextViewContentHeight;
@@ -94,4 +102,4 @@ typedef enum {
 - (void)handleWillHideKeyboard:(NSNotification *)notification;
 - (void)keyboardWillShowHide:(NSNotification *)notification;
 
-@end
\ No newline at end of file
+@end
diff --git a/JSMessagesTableViewController/UIButton+JSMessagesView.m b/JSMessagesTableViewController/UIButton+JSMessagesView.m
index 3aacfa379..e7ea97b2b 100644
--- a/JSMessagesTableViewController/UIButton+JSMessagesView.m
+++ b/JSMessagesTableViewController/UIButton+JSMessagesView.m
@@ -16,8 +16,19 @@ + (UIButton *)defaultSendButton
     sendButton.autoresizingMask = (UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleLeftMargin);
     
     UIEdgeInsets insets = UIEdgeInsetsMake(0.0f, 13.0f, 0.0f, 13.0f);
-    UIImage *sendBack = [[UIImage imageNamed:@"send"] resizableImageWithCapInsets:insets];
-    UIImage *sendBackHighLighted = [[UIImage imageNamed:@"send-highlighted"] resizableImageWithCapInsets:insets];
+
+    UIImage *sendBack = [UIImage imageNamed:@"send"];
+    if ([sendBack respondsToSelector:@selector(resizableImageWithCapInsets:)]) {
+        sendBack = [sendBack resizableImageWithCapInsets:insets];
+    } else {
+        sendBack = [sendBack stretchableImageWithLeftCapWidth:insets.left topCapHeight:insets.top];
+    }
+    UIImage *sendBackHighLighted = [UIImage imageNamed:@"send-highlighted"];
+    if ([sendBackHighLighted respondsToSelector:@selector(resizableImageWithCapInsets:)]) {
+        sendBackHighLighted = [sendBackHighLighted resizableImageWithCapInsets:insets];
+    } else {
+        sendBackHighLighted = [sendBack stretchableImageWithLeftCapWidth:insets.left topCapHeight:insets.top];
+    }
     [sendButton setBackgroundImage:sendBack forState:UIControlStateNormal];
     [sendButton setBackgroundImage:sendBack forState:UIControlStateDisabled];
     [sendButton setBackgroundImage:sendBackHighLighted forState:UIControlStateHighlighted];
@@ -40,4 +51,4 @@ + (UIButton *)defaultSendButton
     return sendButton;
 }
 
-@end
\ No newline at end of file
+@end
diff --git a/JSMessagesViewController.podspec b/JSMessagesViewController.podspec
index fd0c53e80..3adb88fce 100644
--- a/JSMessagesViewController.podspec
+++ b/JSMessagesViewController.podspec
@@ -7,7 +7,7 @@ Pod::Spec.new do |s|
   s.license      = 'MIT License'
   s.author       = { "Jesse Squires" => "jesse.d.squires@gmail.com" }
   s.source       = { :git => "https://github.com/jessesquires/MessagesTableViewController.git", :tag => s.version.to_s }
-  s.platform     = :ios, '5.0'
+  s.platform     = :ios, '4.2'
   s.source_files = 'JSMessagesTableViewController'
   s.resources    = "JSMessagesTableViewController/Resources/**/*.*"
   s.frameworks   = 'AudioToolbox'