Updated readme for 538.4

Author: phoboslab

README.md

@@ -4,7 +4,14 @@ The JavaScriptCore library is part of the [WebKit project](http://www.webkit.org
 
 This repo aims to re-produce the missing iOS targets while staying on a somewhat up-to-date version.
 
-Currently, the [Safari 6.0.2 release](https://svn.webkit.org/repository/webkit/releases/Apple/Safari%206.0.2/) is used as the basis. With the current settings, the WTF and JavaScriptCore libraries can be compiled for armv7 and x86 (for the iOS simulator). It will be compiled without Unicode collation support, because Apple claims [ICU](http://site.icu-project.org/) is a private framework on iOS. It should be AppStore compatible this way.
+Currently, the [Safari 538.4 tag](https://svn.webkit.org/repository/webkit/tags/Safari-538.4/) is used as the basis. With the current settings, the WTF and JavaScriptCore libraries can be compiled for armv7 and x86 (for the iOS simulator). It will be compiled without Unicode collation support, because Apple claims [ICU](http://site.icu-project.org/) is a private framework on iOS. It should be AppStore compatible this way.
+
+This version of JSC deprecates the `typed-arrays` branch of this repository. The updated 538.4 tag now supports Typed Arrays natively, without any hacks.
+
+Note however, that the source code of JSC was still modified from the 538.4 tag:
+
+- It includes some API methods to work with Typed Arrays in native code. Have a look at the `API/JSTypedArray.h`, it declares three new API functions. The documentation for these functions can be found in this header file as well.
+- `Number.MIN_VALUE` was fixed to return `DBL_MIN` instead of `0` when the CPU has not enabled support denormal numbers.
 
 ## Binaries