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auto merge of #7165 : brson/rust/releasenotes, r=thestinger

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RELEASES.txt
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@ -4,36 +4,90 @@ Version 0.7 (July 2013)
* ??? changes, numerous bugfixes
* Syntax changes
* `#[deriving(Encodable)]`, `#[deriving(Decodable)]`
* `use mod` is no longer valid.
* `fail!` and `assert!` accept `~str`, `&'static str` or `fmt!`-style
argument list.
* `Encodable`, `Decodable`, `TotalOrd`, `TotalEq`, `DeepClone` can all
be automatically derived with `#[deriving(...)]`.
* The `Durable` trait is replaced with the `'static` bounds.
* At long last, 'argument modes' no longer exist.
* The `bytes!` macro returns a vector of bytes for string, u8, char,
and unsuffixed integer literals.
* Semantic changes
* The borrow checker has been rewritten with flow-sensitivity, fixing
many bugs and inconveniences.
* The `self` parameter no longer implicitly means `&'self self`,
and can be explicitly marked with a lifetime.
* Structs with the `#[packed]` attribute have byte alignment and
no padding between fields.
* The `for` loop protocol now requires `for`-iterators to return `bool`
so they compose better.
* `Option<~T>` is now represented as a nullable pointer.
* `@mut` does dynamic borrow checks correctly.
* Macros TODO
* The `main` function is only detected at the topmost level of the crate.
The `#[main]` attribute is still valid anywhere.
* Struct fields may no longer be mutable. Use inherited mutability.
* The `#[non_owned]` attribute makes a type that would otherwise be
`Owned`, not. TODO this may change to non_send before 0.7
* The `#[mutable]` attribute makes a type that would otherwise be
`Const`, note. TODO this may change to non_freeze before 0.7
* Unbounded recursion will abort the process after reaching the limit
specified by the `RUST_MAX_STACK` environment variable.
* The `vecs_implicitly_copyable` lint mode has been removed. Vectors
are never implicitly copyable.
* Libraries
**Note: in 0.7 `core` was renamed `std` and `std` to `extra.
These notes use the new crate names.**
* The `core` crate was renamed to `std`.
* The `std` crate was renamed to `extra`.
* `std::mut` removed.
* std: The prelude no longer reexports any modules, only types and traits.
* std: Prelude additions: `print`, `println`, `FromStr`, `ApproxEq`, `Equiv`,
`Iterator`, `IteratorUtil`, many numeric traits, many tuple traits.
* std: `iterator` module for external iterator objects.
* std: new numeric traits: `Fractional`, `Real`, `RealExt`, `Integer`, `Ratio`,
`Algebraic`, `Trigonometric`, `Exponential`, `Primitive`.
* std: Tuple traits and accessors defined for up to 12-tuples, e.g.
`(0, 1, 2).n2()` or `(0, 1, 2).n2_ref()`.
* std: many types implement `Clone` - tuples, @, @mut. TODO
* std: `path` type renamed to `Path`.
* std: Many standalone functions removed in favor of methods in
`vec`, `str`, TODO. In the future methods will also work as functions.
`vec`, `str`. In the future methods will also work as functions.
* std: `reinterpret_cast` removed. Used `transmute`.
* std: ascii string handling in `std::ascii`.
* std: `Rand` is implemented for ~/@.
* std: `run` module for spawning processes overhauled.
* std: Various atomic types added to `unstable::atomic`.
* std: `LinearMap` and `LinearSet` renamed to `HashMap` and `HashSet`.
* std: Added `os::mkdir_recursive`.
* std: Added `os::glob` function performs filesystems globs.
* std: `FuzzyEq` renamed to `ApproxEq`.
* std: `Map` now defines `pop` and `swap` methods.
* extra: `flate` module moved from `std` to `extra`.
* extra: `FileInput` implements `std::io::Reader`.
* extra: `Complex` number type and `complex` module.
* extra: `Rational` number type and `rational` module.
* extra: `BigInt`, `BigUint` implement numeric and comparison traits.
* extra: `term` uses terminfo now, is more correct.
* Tooling
* `unused_unsafe` lint mode for detecting unnecessary `unsafe` blocks.
* `unused_mut` lint mode for identifying unused `mut` qualifiers.
* The `rusti` command has been rewritten and a number of bugs addressed.
* rustc outputs in color on more terminals.
* rustc accepts a `--link-args` flag to pass arguments to the linker.
* rustc accepts a `-Z print-link-args` flag for debugging linkage.
* Compiling with `-g` will make the binary record information about
dynamic borrowcheck failures for debugging.
* rustdoc has a nicer stylesheet.
* Various improvements to rustdoc.
* Other
* `unused_unsafe` lint mode for detecting unnecessary `unsafe` blocks.
* More and improved library documentation.
* The `rusti` command has been rewritten and a number of bugs addressed.
* Various improvements on ARM and Android.
* Various improvements to MIPS backend.
* jemalloc is the Rust allocator.
Version 0.6 (April 2013)
------------------------