---

yaml
---
r: 28527
b: refs/heads/try
c: 5db367b
h: refs/heads/master
i:
  28525: a9f915f
  28523: 8c83b61
  28519: abefe19
  28511: 4110f80
v: v3

Author: brson

[refs]

@@ -2,7 +2,7 @@
 refs/heads/master: cd6f24f9d14ac90d167386a56e7a6ac1f0318195
 refs/heads/snap-stage1: e33de59e47c5076a89eadeb38f4934f58a3618a6
 refs/heads/snap-stage3: cd6f24f9d14ac90d167386a56e7a6ac1f0318195
-refs/heads/try: 73e8ce1e1f2461995031421b555d48da7f5ea086
+refs/heads/try: 5db367b836453c6372777818fbbd15fbbbce40f4
 refs/tags/release-0.1: 1f5c5126e96c79d22cb7862f75304136e204f105
 refs/heads/ndm: f3868061cd7988080c30d6d5bf352a5a5fe2460b
 refs/heads/try2: d0c6ce338884ee21843f4b40bf6bf18d222ce5df

branches/try/RELEASES.txt

@@ -1,3 +1,51 @@
+Version 0.4 (September 2012)
+
+   * ~1500 changes
+
+   * Syntax
+      * All keywords are now strict and may not be used as identifiers anywhere
+      * Keyword removal: 'again', 'import', 'check', 'new', 'owned', 'send',
+        'of', 'with', 'to', 'class'.
+      * Classes are replaced with simpler structs
+      * Method self types
+      * `ret` became `return` and `alt` became `match`
+
+   * Semantics
+      * Trait implementations are now coherent, ala Haskell typeclasses
+      * Borrowed pointers are much more mature and recommended for use
+      * Strings and vectors in the static region are stored in constant memory
+      * Typestate was removed
+      * Resolution is rewritten to be more reliable
+      * Support for 'dual-mode' data structures (freezing and thawing)
+      * Last-use analysis is only used for warnings now. Moves must be explicit
+        for lvalues (TODO: confirm)
+
+   * Libraries
+      * Most binary operators can now be overloaded via the traits in
+        `core::ops'
+      * `std::net::url` for representing URLs
+      * Sendable hash maps in `core::send_map`
+      * `core::task' gained a (currently very unsafe) task-local storage API
+
+   * Concurrency
+      * An effecient new intertask communication primitive called `core::pipes`
+      * `std::arc`, an atomically reference counted, immutable, shared memory
+        type
+      * `std::sync`, various exotic synchronization tools based on arcs and pipes
+      * Futures are now based on pipes and sendable
+      * More robust linked task failure
+      * Improved task builder API
+
+   * Other
+      * Improved error reporting
+      * Preliminary JIT support
+      * Preliminary work on precise GC
+      * Extensive architectural improvements to rustc
+      * Begun a transition away from buggy C++-based reflection (shape) code to
+        Rust-based (visitor) code
+      * Hash functions improved across the codebase (TODO: need details)
+      * New lint checks (TODO: which?)
+
 Version 0.3  (July 2012)
 ------------------------