diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index aba68f86..cbe7e161 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -10,7 +10,7 @@
 * [ ] I have run the tests and they pass
 * [ ] I have run the lint and it passes (`pod lib lint`)
 
-This merge request fixes / reffers to the following issues: ...
+This merge request fixes / refers to the following issues: ...
 
 ### Pull Request Description
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c923ac54..7f65fc05 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,19 @@
+## [5.0.0-beta5 - Customizable SDWebImage, on Jan 31st, 2019](https://github.com/rs/SDWebImage/releases/tag/5.0.0-beta5)
+See [all tickets marked for the 5.0.0-beta5 release](https://github.com/rs/SDWebImage/milestone/32)
+
+#### Fixes
+- Fix encoding options does not works #2602
+- Remove unnecessary CGImage check when encode first frame #2609
+
+## [4.4.5 - 4.4 patch, on Jan 31st, 2019](https://github.com/SDWebImage/SDWebImage/releases/tag/4.4.5)
+See [all tickets marked for the 4.4.5 release](https://github.com/SDWebImage/SDWebImage/milestone/31)
+
+#### Fixes
+- Revert the modular framework, try to fix some user's install issue when using SDWebImage in prefix header #2604
+- Fix wrong decompression scale calculation #2608
+- Fix shouldDecode check when image format is GIF #2606
+- Fix modify data pointer if webp image scaled down #2607
+
 ## [5.0.0-beta4 - Customizable SDWebImage, on Jan 26th, 2019](https://github.com/rs/SDWebImage/releases/tag/5.0.0-beta4)
 See [all tickets marked for the 5.0.0 release](https://github.com/rs/SDWebImage/milestone/15)
 
diff --git a/README.md b/README.md
index 8af3434f..3f321277 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,7 @@ This library provides an async image downloader with cache support. For convenie
 
 - Image formats supported by UIImage (JPEG, PNG, ...), including GIF
 - WebP format, including animated WebP (use the [SDWebImageWebPCoder](https://github.com/SDWebImage/SDWebImageWebPCoder) project)
+- Support extendable coder plugins for new image formats. Like APNG, BPG, HFIF, SVG, etc. See all the list in [Image coder plugin List](https://github.com/SDWebImage/SDWebImage/wiki/Coder-Plugin-List)
 
 ## Additional modules
 
@@ -58,6 +59,12 @@ As such, we have moved/built new modules to [SDWebImage org](https://github.com/
 
 You can use those directly, or create similar components of your own.
 
+## Beta version
+
+SDWebImage's 5.0 version is nearing completion. Which introduce many new features like Animated ImageView and Transformer. We also provide a more modularized design used for advanced user customization.
+
+You can check the latest [5.x branch](https://github.com/SDWebImage/SDWebImage/tree/5.x) to know about the current status. We'd love you to have a try with the beta version and provide any feedback. If you'd love, check [SDWebImage 5.0 Migration Guide](https://github.com/SDWebImage/SDWebImage/wiki/5.0-Migration-guide) and prepare for the migration.
+
 ## Requirements
 
 - iOS 8.0 or later
@@ -142,19 +149,27 @@ platform :ios, '7.0'
 pod 'SDWebImage', '~> 4.0'
 ```
 
-##### Swift
+##### Swift and static framework
 
-If you are using `Swift`, `Xcode 9+` and `CocoaPods` `1.5.0+`, you only need to set your target to `iOS 8+` if you need static library:
+Swift project previously have to use `use_frameworks!` to make all Pods into dynamic framework to let CocoaPods works.
+
+However, start with `CocoaPods 1.5.0+` (with `Xcode 9+`), which supports to build both Objective-C && Swift code into static framework. You can use modular headers to use SDWebImage as static framework, without the need of `use_frameworks!`:
 
 ```
 platform :ios, '8.0'
+# Uncomment the next line when you want all Pods as static framework
+# use_modular_headers!
+pod 'SDWebImage', :modular_headers => true
 ```
 
-If not, you still need to add `use_frameworks!` to use dynamic framework:
+See more on [CocoaPods 1.5.0 — Swift Static Libraries](http://blog.cocoapods.org/CocoaPods-1.5.0/)
+
+If not, you still need to add `use_frameworks!` to use SDWebImage as dynamic framework:
 
 ```
 platform :ios, '8.0'
 use_frameworks!
+pod 'SDWebImage'
 ```
 
 #### Subspecs
diff --git a/SDWebImage.podspec b/SDWebImage.podspec
index 05d9f157..047d236e 100644
--- a/SDWebImage.podspec
+++ b/SDWebImage.podspec
@@ -24,7 +24,6 @@ Pod::Spec.new do |s|
   s.requires_arc = true
   s.framework = 'ImageIO'
   s.module_map = 'WebImage/SDWebImage.modulemap'
-  s.pod_target_xcconfig = { 'DEFINES_MODULE' => 'YES' }
   
   s.default_subspec = 'Core'
 
diff --git a/SDWebImage/SDImageCoderHelper.m b/SDWebImage/SDImageCoderHelper.m
index a0e741a4..7a75eb0c 100644
--- a/SDWebImage/SDImageCoderHelper.m
+++ b/SDWebImage/SDImageCoderHelper.m
@@ -326,14 +326,14 @@ static const CGFloat kDestSeemOverlap = 2.0f;   // the numbers of pixels to over
         CGSize sourceResolution = CGSizeZero;
         sourceResolution.width = CGImageGetWidth(sourceImageRef);
         sourceResolution.height = CGImageGetHeight(sourceImageRef);
-        float sourceTotalPixels = sourceResolution.width * sourceResolution.height;
+        CGFloat sourceTotalPixels = sourceResolution.width * sourceResolution.height;
         // Determine the scale ratio to apply to the input image
         // that results in an output image of the defined size.
         // see kDestImageSizeMB, and how it relates to destTotalPixels.
-        float imageScale = destTotalPixels / sourceTotalPixels;
+        CGFloat imageScale = sqrt(destTotalPixels / sourceTotalPixels);
         CGSize destResolution = CGSizeZero;
-        destResolution.width = (int)(sourceResolution.width*imageScale);
-        destResolution.height = (int)(sourceResolution.height*imageScale);
+        destResolution.width = (int)(sourceResolution.width * imageScale);
+        destResolution.height = (int)(sourceResolution.height * imageScale);
         
         // device color space
         CGColorSpaceRef colorspaceRef = [self colorSpaceGetDeviceRGB];