Move 1.1 NEWS items to HISTORY (JuliaLang#30371)

[ci skip]

HISTORY.md

@@ -1,3 +1,222 @@
+Julia v1.1 Release Notes
+========================
+
+New language features
+---------------------
+
+ * An *exception stack* is maintained on each task to make exception handling
+ more robust and enable root cause analysis. The stack may be accessed using
+ the experimental function `Base.catch_stack` ([#28878]).
+ * The experimental macro `Base.@locals` returns a dictionary of current local variable names
+ and values ([#29733]).
+ * Binary `~` can now be dotted, as in `x .~ y` ([#30341]).
+
+Language changes
+----------------
+
+ * Parser inputs ending with a comma are now consistently treated as incomplete.
+ Previously they were sometimes parsed as tuples, depending on whitespace ([#28506]).
+ * Spaces were accidentally allowed in broadcast call syntax, e.g. `f. (x)`. They are now
+ disallowed, consistent with normal function call syntax ([#29781]).
+ * Big integer literals and command syntax (backticks) are now parsed with the name of
+ the macro (`@int128_str`, `@uint128_str`, `@big_str`, `@cmd`) qualified to refer
+ to the `Core` module ([#29968]).
+ * Using the same name for both a local variable and a static parameter is now an error instead
+ of a warning ([#29429]).
+ * `findall(in(b), a)` now returns a `CartesianIndex` when `a` is a matrix or a higher-dimensional array,
+ for consistency with other `findall` methods. Use `LinearIndices(a)[findall(in(b), a)]` to get
+ the old behavior, or `CartesianIndices(a)[findall(in(b), a)]` to get the new behavior
+ on previous Julia versions ([#30226]).
+ * `findmin(::BitArray)` and `findmax(::BitArray)` now return a `CartesianIndex` when `a` is a matrix
+ or a higher-dimensional array, for consistency with other array types.
+ Use `LinearIndices(a)[findmin(a)[2]]` to get the old behavior, or `CartesianIndices(a)[findmin(a)[2]]`
+ to get the new behavior on previous Julia versions ([#30102]).
+ * Method signatures such as
+ `f(::Type{T}, ::T) where {T <: X}` and
+ `f(::Type{X}, ::Any)`
+ are now considered ambiguous. Previously a bug caused the first one to be considered more specific in
+ some cases ([#30160]).
+
+Command-line option changes
+---------------------------
+
+ * When a script run in interactive mode (`-i`) throws an error, the REPL now starts after
+ the error is displayed. Previously the REPL only started if the script completed without
+ error ([#21233]).
+
+New library functions
+---------------------
+
+ * `splitpath(p::String)` function, which is the opposite of `joinpath(parts...)`: it splits a filepath
+ into its components ([#28156]).
+ * `isnothing(::Any)` predicate, to check whether the argument is `nothing`. ([#29679]).
+ * `getpid(::Process)` method ([#24064]).
+ * `eachrow`, `eachcol` and `eachslice` functions provide efficient iterators over slices of arrays ([#29749]).
+ * `fieldtypes(T::Type)` which returns the declared types of the field in type T ([#29600]).
+ * `uuid5` has been added to the `UUIDs` standard library ([#28761]).
+ * Predicates `Sys.isfreebsd`, `Sys.isopenbsd`, `Sys.isnetbsd`, and `Sys.isdragonfly` for
+ detecting BSD systems have been added ([#30249]).
+ * Internal `Base.disable_library_threading` that sets libraries to use one thread.
+ It executes function hooks that have been registered with
+ `Base.at_disable_library_threading` ([#30004]).
+
+Standard library changes
+------------------------
+
+ * `CartesianIndices` can now be constructed from two `CartesianIndex`es `I` and `J` with `I:J` ([#29440]).
+ * `CartesianIndices` support broadcasting arithmetic (+ and -) with a `CartesianIndex` ([#29890]).
+ * `copy!` support for arrays, dicts, and sets has been moved to Base from the Future package ([#29173]).
+ * Channels now convert inserted values (like containers) instead of requiring types to match ([#29092]).
+ * `range` can accept the stop value as a positional argument, e.g. `range(1,10,step=2)` ([#28708]).
+ * `diff` now supports arrays of arbitrary dimensionality and can operate over any dimension ([#29827]).
+ * The constructor `BigFloat(::BigFloat)` now respects the global precision setting and always
+ returns a `BigFloat` with precision equal to `precision(BigFloat)` ([#29127]). The optional
+ `precision` argument to override the global setting is now a keyword instead of positional
+ argument ([#29157]).
+ * The use of scientific notation when printing `BigFloat` values is now consistent with other floating point
+ types ([#29211]).
+ * `Regex` now behaves like a scalar when used in broadcasting ([#29913]).
+ * `Char` now behaves like a read-only 0-dimensional array ([#29819]).
+ * `parse` now allows strings representing integer 0 and 1 for type `Bool` ([#29980]).
+ * `Base.tail` now works on named tuples ([#29595]).
+ * The process id is appended to malloc log files in order to track memory allocations of
+ multiple processes ([#29969]).
+ * `Base.julia_cmd` now propagates the `--inline=(yes|no)` flag ([#29858]).
+ * `Base.@kwdef` can now be used for parametric structs, and for structs with supertypes ([#29316]).
+ * `merge(::NamedTuple, ::NamedTuple...)` can now be used with more than 2 `NamedTuple`s ([#29259]).
+ * New `ncodeunits(c::Char)` method as a fast equivalent to `ncodeunits(string(c))` ([#29153]).
+ * New `sort!(::AbstractArray; dims)` method that can sort the array along the `dims` dimension ([#28902]).
+ * `range` now accepts `stop` as a positional argument ([#28708]).
+ * `get(A::AbstractArray, (), default)` now returns `A[]` instead of an empty array ([#30270]).
+ * `parse(Bool, str)` is now supported ([#29997]).
+ * `copyto!(::AbstractMatrix, ::UniformScaling)` now supports rectangular matrices ([#28790]).
+ * `current_project()` now searches the parent directories of a Git repository for a `Project.toml` file.
+ This also affects the behavior of the `--project` command line option when using the default
+ `--project=@.` ([#29108]).
+ * The `spawn` API is now more flexible and supports taking IOBuffer directly as an I/O stream,
+ converting to a system pipe as needed ([#30278]).
+
+#### Dates
+ * New `DateTime(::Date, ::Time)` constructor ([#29754]).
+ * `TimeZone` now behaves like a scalar when used in broadcasting ([#30159]).
+
+#### InteractiveUtils
+ * `edit` can now be called on a module to edit the file that defines it ([#29636]).
+ * All compiler-reflection tools (i.e. the `code_` class of functions and macros) now print accurate
+ line number and inlining information in a common style, and take an optional parameter (debuginfo=:default)
+ to control the verbosity of the metadata shown ([#29893]).
+
+#### LinearAlgebra
+ * `isdiag` and `isposdef` for `Diagonal` and `UniformScaling` ([#29638]).
+ * `mul!`, `rmul!` and `lmul!` methods for `UniformScaling` ([#29506]).
+ * `Symmetric` and `Hermitian` matrices now preserve the wrapper when scaled with a number ([#29469]).
+ * Exponentiation operator `^` now supports raising an `Irrational` to an `AbstractMatrix` power ([#29782]).
+ * Added keyword arguments `rtol`, `atol` to `rank` ([#29926]).
+
+#### Random
+ * `randperm` and `randcycle` now use the type of their argument to determine the element type of
+ the returned array ([#29670]).
+ * A new method `rand(::Tuple)` implements sampling from the values of a tuple ([#25278]).
+ * `serialize` and `deserialize` now accept a filename argument, like `write` and `read` ([#30151]).
+
+#### SparseArrays
+ * `sprandn` now supports specifying the output element type ([#30083]).
+
+#### Statistics
+ * `mean` and `var` now handle more kinds of empty inputs ([#29033]).
+
+External dependencies
+---------------------
+
+ * 7zip (bundled with Julia on Windows) has been upgraded from version 16.04 to 18.05 ([#30035]).
+ * Busybox is no longer bundled with Julia on Windows ([#30022]).
+ * OpenBLAS has been upgraded from 0.3.2 to 0.3.3 ([#29845]).
+ * The source code for Pkg is no longer included in JuliaLang/julia. Pkg is instead
+ downloaded during the build process ([#29615]).
+ * LLVM has been upgraded to 6.0.1 and support for LLVM < 6.0 has been dropped ([#28745], [#28696]).
+ * Pkg has been upgraded to version 1.1 ([#30342]).
+
+Deprecated or removed
+---------------------
+
+ * `one(i::CartesianIndex)` should be replaced with `oneunit(i::CartesianIndex)` ([#29442]).
+ * The internal array `Base.Grisu.DIGITS` is deprecated; new code should use `Base.Grisu.getbuf()`
+ to get an appropriate task-local buffer and pass it to `grisu()` instead ([#29907]).
+ * The internal function `Base._default_type(T)` has been removed. Calls to it should be
+ replaced with just the argument `T` ([#29739]).
+ * `peakflops` has been scheduled to move from `InteractiveUtils` to `LinearAlgebra`
+ but is already now available as `LinearAlgebra.peakflops` ([#29978]).
+
+<!--- generated by NEWS-update.jl: -->
+[#21233]: https://github.com/JuliaLang/julia/issues/21233
+[#24064]: https://github.com/JuliaLang/julia/issues/24064
+[#25278]: https://github.com/JuliaLang/julia/issues/25278
+[#28156]: https://github.com/JuliaLang/julia/issues/28156
+[#28506]: https://github.com/JuliaLang/julia/issues/28506
+[#28696]: https://github.com/JuliaLang/julia/issues/28696
+[#28708]: https://github.com/JuliaLang/julia/issues/28708
+[#28745]: https://github.com/JuliaLang/julia/issues/28745
+[#28761]: https://github.com/JuliaLang/julia/issues/28761
+[#28790]: https://github.com/JuliaLang/julia/issues/28790
+[#28878]: https://github.com/JuliaLang/julia/issues/28878
+[#28902]: https://github.com/JuliaLang/julia/issues/28902
+[#29033]: https://github.com/JuliaLang/julia/issues/29033
+[#29092]: https://github.com/JuliaLang/julia/issues/29092
+[#29108]: https://github.com/JuliaLang/julia/issues/29108
+[#29127]: https://github.com/JuliaLang/julia/issues/29127
+[#29153]: https://github.com/JuliaLang/julia/issues/29153
+[#29157]: https://github.com/JuliaLang/julia/issues/29157
+[#29173]: https://github.com/JuliaLang/julia/issues/29173
+[#29211]: https://github.com/JuliaLang/julia/issues/29211
+[#29259]: https://github.com/JuliaLang/julia/issues/29259
+[#29316]: https://github.com/JuliaLang/julia/issues/29316
+[#29429]: https://github.com/JuliaLang/julia/issues/29429
+[#29440]: https://github.com/JuliaLang/julia/issues/29440
+[#29442]: https://github.com/JuliaLang/julia/issues/29442
+[#29469]: https://github.com/JuliaLang/julia/issues/29469
+[#29506]: https://github.com/JuliaLang/julia/issues/29506
+[#29595]: https://github.com/JuliaLang/julia/issues/29595
+[#29600]: https://github.com/JuliaLang/julia/issues/29600
+[#29615]: https://github.com/JuliaLang/julia/issues/29615
+[#29636]: https://github.com/JuliaLang/julia/issues/29636
+[#29638]: https://github.com/JuliaLang/julia/issues/29638
+[#29670]: https://github.com/JuliaLang/julia/issues/29670
+[#29679]: https://github.com/JuliaLang/julia/issues/29679
+[#29733]: https://github.com/JuliaLang/julia/issues/29733
+[#29739]: https://github.com/JuliaLang/julia/issues/29739
+[#29749]: https://github.com/JuliaLang/julia/issues/29749
+[#29754]: https://github.com/JuliaLang/julia/issues/29754
+[#29781]: https://github.com/JuliaLang/julia/issues/29781
+[#29782]: https://github.com/JuliaLang/julia/issues/29782
+[#29819]: https://github.com/JuliaLang/julia/issues/29819
+[#29827]: https://github.com/JuliaLang/julia/issues/29827
+[#29845]: https://github.com/JuliaLang/julia/issues/29845
+[#29858]: https://github.com/JuliaLang/julia/issues/29858
+[#29890]: https://github.com/JuliaLang/julia/issues/29890
+[#29893]: https://github.com/JuliaLang/julia/issues/29893
+[#29907]: https://github.com/JuliaLang/julia/issues/29907
+[#29913]: https://github.com/JuliaLang/julia/issues/29913
+[#29926]: https://github.com/JuliaLang/julia/issues/29926
+[#29968]: https://github.com/JuliaLang/julia/issues/29968
+[#29969]: https://github.com/JuliaLang/julia/issues/29969
+[#29978]: https://github.com/JuliaLang/julia/issues/29978
+[#29980]: https://github.com/JuliaLang/julia/issues/29980
+[#29997]: https://github.com/JuliaLang/julia/issues/29997
+[#30004]: https://github.com/JuliaLang/julia/issues/30004
+[#30022]: https://github.com/JuliaLang/julia/issues/30022
+[#30035]: https://github.com/JuliaLang/julia/issues/30035
+[#30083]: https://github.com/JuliaLang/julia/issues/30083
+[#30102]: https://github.com/JuliaLang/julia/issues/30102
+[#30151]: https://github.com/JuliaLang/julia/issues/30151
+[#30159]: https://github.com/JuliaLang/julia/issues/30159
+[#30160]: https://github.com/JuliaLang/julia/issues/30160
+[#30226]: https://github.com/JuliaLang/julia/issues/30226
+[#30249]: https://github.com/JuliaLang/julia/issues/30249
+[#30270]: https://github.com/JuliaLang/julia/issues/30270
+[#30278]: https://github.com/JuliaLang/julia/issues/30278
+[#30341]: https://github.com/JuliaLang/julia/issues/30341
+[#30342]: https://github.com/JuliaLang/julia/issues/30342
+
 Julia v1.0.0 Release Notes
 ==========================