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corrected NEWS entry for #12576 and fixed some punctuation
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stevengj committed Aug 18, 2015
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Expand Up @@ -44,7 +44,7 @@ New language features

* The syntax `new{parameters...}(...)` can be used in constructors to specify parameters for
the type to be constructed ([#8135]).
* The `++` operator is now parsed, out of discussions about string concatenation, but no default meaning has been defined yet. ([#11030], [#11686])
* The `++` operator is now parsed, out of discussions about string concatenation, but no default meaning has been defined yet ([#11030], [#11686]).

* Support for inter-task communication using `Channels` ([#12264]).
See http://docs.julialang.org/en/latest/manual/parallel-computing/#channels for details.
Expand All @@ -57,14 +57,14 @@ New language features
Language changes
----------------

* Module `__init__` methods no longer swallow thrown exceptions, they now
throw an `InitException` referencing the thrown exception. ([#12576])
* Module `__init__` methods no longer swallow thrown exceptions; they now
throw an `InitError` wrapping the thrown exception ([#12576]).

* Tuple types are now written as `Tuple{A, B}` instead of as `(A, B)`.
Tuples of bits types are inlined into structs and arrays, like other
immutable types.
`...` now does splatting inside parentheses, instead of constructing a
vararg tuple type. ([#10380])
vararg tuple type ([#10380]).

* Significant improvements to `ccall` and `cfunction`

Expand Down Expand Up @@ -127,7 +127,7 @@ Language changes
dicts are synchronized. As part of this change, `=>` is parsed as a normal
operator, and `Base` defines it to construct `Pair` objects ([#6739]).

* `Char` is no longer a subtype of `Integer`. ([#8816])
* `Char` is no longer a subtype of `Integer` ([#8816]).
Char now supports a more limited set of operations with `Integer` types:

* comparison / equality
Expand Down Expand Up @@ -193,7 +193,7 @@ Compiler improvements
Library improvements
--------------------

* Build with USE_GPL_LIBS=0 to exclude all GPL libraries and code. ([#10870])
* Build with USE_GPL_LIBS=0 to exclude all GPL libraries and code ([#10870]).

* Linear algebra

Expand All @@ -219,7 +219,7 @@ Library improvements

* Large speedup in sparse `\` and splitting of Cholesky and LDLᵀ factorizations into `cholfact` and `ldltfact` ([#10117]).

* Add sparse least squares to `\` by adding `qrfact` for sparse matrices based on the SPQR library. ([#10180])
* Add sparse least squares to `\` by adding `qrfact` for sparse matrices based on the SPQR library ([#10180]).

* Split `Triangular` type into `UpperTriangular`, `LowerTriangular`, `UnitUpperTriagular` and `UnitLowerTriangular` ([#9779])

Expand Down Expand Up @@ -255,11 +255,11 @@ Library improvements
* `charwidth(c)` and `strwidth(s)` now return up-to-date cross-platform
results (via utf8proc) ([#10659]): Julia now likes pizza ([#3721]), but some terminals still don't.

* `is_valid_char(c)` now correctly handles Unicode "non-characters", which are valid Unicode codepoints. ([#11171])
* `is_valid_char(c)` now correctly handles Unicode "non-characters", which are valid Unicode codepoints ([#11171]).

* Array and AbstractArray improvements

* New multidimensional iterators and index types for efficient iteration over `AbstractArray`s. Array iteration should generally be written as `for i in eachindex(A) ... end` rather than `for i = 1:length(A) ... end`. ([#8432])
* New multidimensional iterators and index types for efficient iteration over `AbstractArray`s. Array iteration should generally be written as `for i in eachindex(A) ... end` rather than `for i = 1:length(A) ... end` ([#8432]).

* New implementation of SubArrays with substantial performance and functionality improvements ([#8501]).

Expand Down Expand Up @@ -401,7 +401,7 @@ Library improvements
`jl_realloc`, and `jl_free` with libc API ([[#12034]]).

* `mktempdir` and `mktemp` now have variants that take a function as its
first argument for automated clean-up. ([[#9017]])
first argument for automated clean-up ([[#9017]]).

Deprecated or removed
---------------------
Expand Down Expand Up @@ -480,7 +480,7 @@ Deprecated or removed
* The functions `parseint`, `parsefloat`, `float32_isvalid`,
`float64_isvalid`, and the string-argument `BigInt` and `BigFloat` have
been replaced by `parse` and `tryparse` with a type argument. The string
macro `big"xx"` can be used to construct `BigInt` and `BigFloat` literals.
macro `big"xx"` can be used to construct `BigInt` and `BigFloat` literals
([#3631], [#5704], [#9487], [#10543], [#10955]).

* the `--int-literals` compiler option is no longer accepted ([#9597]).
Expand Down Expand Up @@ -574,7 +574,7 @@ New language features

* `break` inside a `for` loop with multiple ranges now exits the entire loop nest ([#5154])

* Local goto statements using the `@goto` and `@label` macros. ([#101])
* Local goto statements using the `@goto` and `@label` macros ([#101]).

REPL improvements
-----------------
Expand Down Expand Up @@ -757,15 +757,15 @@ Library improvements

* `sparse(A) \ B` now supports a matrix `B` of right-hand sides ([#5196]).

* `eigs(A, sigma)` now uses shift-and-invert for nonzero shifts `sigma` and inverse iteration for `which="SM"`. If `sigma==nothing` (the new default), computes ordinary (forward) iterations. ([#5776])
* `eigs(A, sigma)` now uses shift-and-invert for nonzero shifts `sigma` and inverse iteration for `which="SM"`. If `sigma==nothing` (the new default), computes ordinary (forward) iterations ([#5776]).

* `sprand` is faster, and whether any entry is nonzero is now determined independently with the specified probability ([#6726]).

* Dense linear algebra for special matrix types

* Interconversions between the special matrix types `Diagonal`, `Bidiagonal`,
`SymTridiagonal`, `Triangular`, and `Triangular`, and `Matrix` are now allowed
for matrices which are representable in both source and destination types. ([5e3f074b])
for matrices which are representable in both source and destination types ([5e3f074b]).

* Allow for addition and subtraction over mixed matrix types, automatically promoting
the result to the denser matrix type ([a448e080], [#5927])
Expand Down Expand Up @@ -813,7 +813,7 @@ Library improvements
single iterable argument giving the elements of the collection ([#4996], [#4871])

* Ranges and arrays with the same elements are now unequal. This allows hashing
and comparing ranges to be faster. ([#5778])
and comparing ranges to be faster ([#5778]).

* Broadcasting now works on arbitrary `AbstractArrays` ([#5387])

Expand Down Expand Up @@ -845,28 +845,28 @@ Library improvements

* New macro `@evalpoly` for efficient inline evaluation of polynomials ([#7146]).

* The signal filtering function `filt` now accepts an optional initial filter state vector. A new in-place function `filt!` is also exported. ([#7513])
* The signal filtering function `filt` now accepts an optional initial filter state vector. A new in-place function `filt!` is also exported ([#7513]).

* Significantly faster `cumsum` and `cumprod`. ([#7359])
* Significantly faster `cumsum` and `cumprod` ([#7359]).

* Implement `findmin` and `findmax` over specified array dimensions. ([#6716])
* Implement `findmin` and `findmax` over specified array dimensions ([#6716]).

* Support memory-mapping of files with offsets on Windows. ([#7242])
* Support memory-mapping of files with offsets on Windows ([#7242]).

* Catch writes to protect memory, such as when trying to modify a mmapped file opened in read-only mode. ([#3434])
* Catch writes to protect memory, such as when trying to modify a mmapped file opened in read-only mode ([#3434]).

Environment improvements
------------------------

* New `--code-coverage` and `--track-allocation` startup features allow one to measure the number of executions or the amount of memory allocated, respectively, at each line of code. ([#5423],[#7464])
* New `--code-coverage` and `--track-allocation` startup features allow one to measure the number of executions or the amount of memory allocated, respectively, at each line of code ([#5423],[#7464]).

* `Profile.init` now accepts keyword arguments, and returns the current settings when no arguments are supplied. ([#7365])
* `Profile.init` now accepts keyword arguments, and returns the current settings when no arguments are supplied ([#7365]).

Build improvements
------------------

* Dependencies are now verified against stored MD5/SHA512 hashes, to ensure
that the correct file has been downloaded and was not modified. ([#6773])
that the correct file has been downloaded and was not modified ([#6773]).


Deprecated or removed
Expand All @@ -878,31 +878,31 @@ Deprecated or removed

* `Sys.shlib_ext` has been renamed to `Sys.dlext`

* `dense` is deprecated in favor of `full` ([#4759])
* `dense` is deprecated in favor of `full` ([#4759]).

* The `Stat` type is renamed `StatStruct` ([#4670])
* The `Stat` type is renamed `StatStruct` ([#4670]).

* `set_rounding`, `get_rounding` and `with_rounding` now take an additional
argument specifying the floating point type to which they apply. The old
behaviour and `[get/set/with]_bigfloat_rounding` functions are deprecated ([#5007])
behaviour and `[get/set/with]_bigfloat_rounding` functions are deprecated ([#5007]).

* `cholpfact` and `qrpfact` are deprecated in favor of keyword arguments in
`cholfact(..., pivot=true)` and `qrfact(..., pivot=true)` ([#5330])
`cholfact(..., pivot=true)` and `qrfact(..., pivot=true)` ([#5330]).

* `symmetrize!` is deprecated in favor of `Base.LinAlg.copytri!` ([#5427])
* `symmetrize!` is deprecated in favor of `Base.LinAlg.copytri!` ([#5427]).

* `myindexes` has been renamed to `localindexes` ([#5475])
* `myindexes` has been renamed to `localindexes` ([#5475]).

* `factorize!` is deprecated in favor of `factorize`. ([#5526])
* `factorize!` is deprecated in favor of `factorize` ([#5526]).

* `nnz` counts the number of structural nonzeros in a sparse
matrix. Use `countnz` for the actual number of nonzeros. ([#6769])
matrix. Use `countnz` for the actual number of nonzeros ([#6769]).

* `setfield` is renamed `setfield!` ([#5748])
* `setfield` is renamed `setfield!` ([#5748]).

* `put` and `take` are renamed `put!` and `take!` ([#5511])
* `put` and `take` are renamed `put!` and `take!` ([#5511]).

* `put!` now returns its first argument, the remote reference ([#5819])
* `put!` now returns its first argument, the remote reference ([#5819]).

* `read` methods that modify a passed array are now called `read!` ([#5970])

Expand Down Expand Up @@ -1133,14 +1133,14 @@ Library improvements

* Implementation of reduction functions (including `reduce`, `mapreduce`, `sum`, `prod`,
`maximum`, `minimum`, `all`, and `any`) are refactored, with improved type stability,
efficiency, and consistency. ([#6116], [#7035], [#7061], [#7106])
efficiency, and consistency ([#6116], [#7035], [#7061], [#7106]).

Deprecated or removed
---------------------

* Methods of `min` and `max` that do reductions were renamed to
`minimum` and `maximum`. `min(x)` is now `minimum(x)`, and
`min(x,(),dim)` is now `minimum(x,dim)`. ([#4235])
`min(x,(),dim)` is now `minimum(x,dim)` ([#4235]).

* `ComplexPair` was renamed to `Complex` and made `immutable`,
and `Complex128` and so on are now aliases to the new `Complex` type.
Expand Down Expand Up @@ -1593,3 +1593,4 @@ Too numerous to mention.
[#12458]: https://github.com/JuliaLang/julia/issues/12458
[#12472]: https://github.com/JuliaLang/julia/issues/12472
[#12491]: https://github.com/JuliaLang/julia/issues/12491
[#12576]: https://github.com/JuliaLang/julia/issues/12576

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