Julia v1.11 Release Notes
========================

New language features
---------------------
* `public` is a new keyword. Symbols marked with `public` are considered public
  API. Symbols marked with `export` are now also treated as public API. The
  difference between `public` and `export` is that `public` names do not become
  available when `using` a package/module. ([#50105])
* `ScopedValue` implement dynamic scope with inheritance across tasks ([#50958]).

Language changes
----------------

Compiler/Runtime improvements
-----------------------------
* Updated GC heuristics to count allocated pages instead of individual objects ([#50144]).
* A new `LazyLibrary` type is exported from `Libdl` for use in building chained lazy library
  loads, primarily to be used within JLLs ([#50074]).

Command-line option changes
---------------------------

* The entry point for Julia has been standardized to `Main.main(ARGS)`. This must be explicitly opted into using the `@main` macro
(see the docstring for futher details). When opted-in, and julia is invoked to run a script or expression
(i.e. using `julia script.jl` or `julia -e expr`), julia will subsequently run the `Main.main` function automatically.
This is intended to unify script and compilation workflows, where code loading may happen
in the compiler and execution of `Main.main` may happen in the resulting executable. For interactive use, there is no semantic
difference between defining a `main` function and executing the code directly at the end of the script. ([50974])

Multi-threading changes
-----------------------

Build system changes
--------------------

New library functions
---------------------

* The new `Libc.mkfifo` function wraps the `mkfifo` C function on Unix platforms ([#34587]).
* `hardlink(src, dst)` can be used to create hard links. ([#41639])
* `diskstat(path=pwd())` can be used to return statistics about the disk. ([#42248])
* `copyuntil(out, io, delim)` and `copyline(out, io)` copy data into an `out::IO` stream ([#48273]).
* `eachrsplit(string, pattern)` iterates split substrings right to left.

New library features
--------------------
* `replace(string, pattern...)` now supports an optional `IO` argument to
  write the output to a stream rather than returning a string ([#48625]).

Standard library changes
------------------------

#### Package Manager

#### LinearAlgebra

#### Printf

#### Profile

#### Random
* `rand` now supports sampling over `Tuple` types ([#35856], [#50251]) and `Pair` types ([#28705]),
  e.g. `rand(Tuple{Int, Bool})`.
* When seeding RNGs provided by `Random`, negative integer ([#51416]) and strings ([#51527]) can now
  be used as seeds, e.g. `seed!(rng, "a random seed")`.

#### REPL

* Tab complete hints now show in lighter text while typing in the repl. To disable
  set `Base.active_repl.options.hint_tab_completes = false` ([#51229])

#### SuiteSparse


#### SparseArrays

#### Test

#### Dates

#### Statistics

* Statistics is now an upgradeable standard library.([#46501])

#### Distributed

* `pmap` now defaults to using a `CachingPool` ([#33892]).

#### Unicode


#### DelimitedFiles


#### InteractiveUtils

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


External dependencies
---------------------
* `tput` is no longer called to check terminal capabilities, it has been replaced with a pure-Julia terminfo parser.

Tooling Improvements
--------------------


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