Add some release announcement text.
@@ -24,6 +24,24 @@ Highlights of this release include:
Thumb-2 code. This will also generate Thumb-2 message send functions,
improving instruction cache usage.
+- Significant improvements to ARC, including
+
+ * The runtime no longer acquires a global lock on every object deallocation (a
+ global lock is still used for objects that have weak references).
+
+ * Weak references use a scheme closer to C++ `std::weak_pointer` and are
+ lazily zeroed on access. This reduces the space overheads for weak
+ references.
+
+ * Some additional helper functions are added for use in `NSObject` and other
+ root classes, which simplifies the layering between the runtime and the
+ Foundation (or equivalent) implementation.
+
+- Improvements to how the runtime handles layout of ivars with strong alignment
+ requirements, which should fix issues relating to using vector types in
+ Objective-C objects.
+
+
You may obtain the code for this release from git and use the 1.x branch:
https://github.com/gnustep/libobjc2.git
