Log message:
elixir: updated to 1.17.2

v1.17.2

Bug fixes

Logger

[Logger.Translator] Fix logger crash when :gen_statem's format_status/2 returns \ 
non-tuple

Mix

[mix deps.get] Fix regression when fetching a git repository with a :ref
[mix release] Validate RELEASE_MODE and set ERRORLEVEL on .bat scripts
[mix release] Fix invalid example in code comment inside the generated vm.args.eex

Log message:
elixir: update to 1.16.2.

1. Enhancements

Elixir

    [Code] Emit :defmodule tracing event on module definition

Mix

    [Mix] Add Mix.install_project_dir/0
    [Mix] Add environment variable for reusing Mix.install/2 installation
    [Mix.SCM] Add Mix.SCM.delete/1

2. Bug fixes

Elixir

    [Code] Fix charlist formatting issue when a single-quoted charlist escapes a \ 
double-quote character
    [Path] Fix regression on how Path.relative_to/2 dealt with "." as input

IEx

    [IEx.Helpers] Discard mermaid fenced blocks from ansi docs

ExUnit

    [ExUnit] Properly compared pinned values when building diffs

Log message:
elixir: update to 1.16.1.

Bug fixes

Elixir

    [Code] Fix Code.quoted_to_algebra/2 for operator with :do key as operand
    [Kernel.ParallelCompiler] Do not crash parallel compiler when it receives \ 
diagnostics from additional code evaluation
    [Kernel.ParallelCompiler] Always log errors at the end of compilation
    [String] Fix String.capitalize/1 with a single codepoint

IEx

    [IEx] Fix autocompletion of function signatures on Erlang/OTP 26
    [IEx] Do not assume $HOME is set

Mix

    [mix deps.compile] Handle compilation of rebar3 dependencies when rebar3 is \ 
on a path with spaces on Unix
    [mix test] Properly resolve relative paths when running tests from \ 
individual files
    [mix test] Properly resolve Windows paths when running tests from individual \ 
files

Log message:
elixir: update to 1.16.0.

(5 test failures)

# Changelog for Elixir v1.16

## Code snippets in diagnostics

Elixir v1.15 introduced a new compiler diagnostic format and the ability to \ 
print multiple error diagnostics per compilation (in addition to multiple \ 
warnings).

With Elixir v1.16, we also include code snippets in exceptions and diagnostics \ 
raised by the compiler. For example, a syntax error now includes a pointer to \ 
where the error happened:

```
** (SyntaxError) invalid syntax found on lib/my_app.ex:1:17:
    error: syntax error before: '*'
    │
  1 │ [1, 2, 3, 4, 5, *]
    │                 ^
    │
    └─ lib/my_app.ex:1:17
```

For mismatched delimiters, it now shows both delimiters:

```
** (MismatchedDelimiterError) mismatched delimiter found on lib/my_app.ex:1:18:
    error: unexpected token: )
    │
  1 │ [1, 2, 3, 4, 5, 6)
    │ │                └ mismatched closing delimiter (expected "]")
    │ └ unclosed delimiter
    │
    └─ lib/my_app.ex:1:18
```

For unclosed delimiters, it now shows where the unclosed delimiter starts:

```
** (TokenMissingError) token missing on lib/my_app:8:23:
    error: missing terminator: )
    │
  1 │ my_numbers = (1, 2, 3, 4, 5, 6
    │              └ unclosed delimiter
 ...
  8 │ IO.inspect(my_numbers)
    │                       └ missing closing delimiter (expected ")")
    │
    └─ lib/my_app:8:23
```

Errors and warnings diagnostics also include code snippets. When possible, we \ 
will show precise spans, such as on undefined variables:

```
  error: undefined variable "unknown_var"
  │
5 │     a - unknown_var
  │         ^^^^^^^^^^^
  │
  └─ lib/sample.ex:5:9: Sample.foo/1
```

Otherwise the whole line is underlined:

```
error: function names should start with lowercase characters or underscore, \ 
invalid name CamelCase
  │
3 │   def CamelCase do
  │   ^^^^^^^^^^^^^^^^
  │
  └─ lib/sample.ex:3
```

A huge thank you to Vinícius Müller for working on the new diagnostics.

## Revamped documentation

Elixir's Getting Started guides have been made part of the Elixir repository and \ 
incorporated into ExDoc. This was an opportunity to revisit and unify all \ 
official guides and references.

We have also incorporated and extended the work on [Understanding Code Smells in \ 
Elixir Functional \ 
Language](https://github.com/lucasvegi/Elixir-Code-Smells/blob/main/etc/2023-emse-code-smells-elixir.pdf), \ 
by Lucas Vegi and Marco Tulio Valente, from \ 
[ASERG/DCC/UFMG](http://aserg.labsoft.dcc.ufmg.br/), into the official document \ 
in the form of anti-patterns. The anti-patterns are divided into four \ 
categories: code-related, design-related, process-related, and meta-programming. \ 
Our goal is to give all developers examples of potential anti-patterns, with \ 
context and examples on how to improve their codebases.

Another [ExDoc](https://github.com/elixir-lang/ex_doc) feature we have \ 
incorporated in this release is the addition of cheatsheets, starting with [a \ 
cheatsheet for the Enum module](https://hexdocs.pm/elixir/main/enum-cheat.html). \ 
If you would like to contribute future cheatsheets to Elixir itself, feel free \ 
to start a discussion with an issue.

Finally, we have started enriching our documentation with \ 
[Mermaid.js](https://mermaid.js.org/) diagrams. You can find examples in the \ 
[GenServer](https://hexdocs.pm/elixir/main/GenServer.html) and \ 
[Supervisor](https://hexdocs.pm/elixir/main/Supervisor.html) docs.

## v1.16.0 (2023-12-22)

### 1. Enhancements

#### EEx

  * [EEx] Include relative file information in diagnostics

#### Elixir

  * [Code] Add `:emit_warnings` for `Code.string_to_quoted/2`
  * [Code] Automatically include columns in parsing options
  * [Code] Introduce `MismatchedDelimiterError` for handling mismatched \ 
delimiter exceptions
  * [Code.Fragment] Handle anonymous calls in fragments
  * [Code.Formatter] Trim trailing whitespace on heredocs with `\r\n`
  * [File] Add `:offset` option to `File.stream!/2`
  * [Kernel] Auto infer size of matched variable in bitstrings
  * [Kernel] Preserve column information when translating typespecs
  * [Kernel] Suggest module names based on suffix and casing errors when the \ 
module does not exist in `UndefinedFunctionError`
  * [Kernel.ParallelCompiler] Introduce `Kernel.ParallelCompiler.pmap/2` to \ 
compile multiple additional entries in parallel
  * [Kernel.SpecialForms] Warn if `True`/`False`/`Nil` are used as aliases and \ 
there is no such alias
  * [Macro] Add `Macro.compile_apply/4`
  * [Module] Add support for `@nifs` annotation from Erlang/OTP 25
  * [Module] Add support for missing `@dialyzer` configuration
  * [String] Update to Unicode 15.1.0
  * [String] Add `String.replace_invalid/2`
  * [Task] Add `:limit` option to `Task.yield_many/2`

#### Logger

  * [Logger] Add `Logger.levels/0`

#### Mix

  * [mix] Add `MIX_PROFILE` to profile a list of comma separated tasks
  * [mix archive.install] Support `--sparse` option
  * [mix compile.app] Warn if both `:applications` and `:extra_applications` are used
  * [mix compile.elixir] Pass original exception down to diagnostic `:details` \ 
when possible
  * [mix compile.elixir] Optimize scenario where there are thousands of files in \ 
`lib/` and one of them is changed
  * [mix deps.clean] Emit a warning instead of crashing when a dependency cannot \ 
be removed
  * [mix escript.install] Support `--sparse` option
  * [mix release] Include `include/` directory in releases
  * [mix test] Allow testing multiple file:line at once, such as `mix test \ 
test/foo_test.exs:13 test/bar_test.exs:27`

### 2. Bug fixes

#### Elixir

  * [Code] Keep quotes for atom keys in formatter
  * [Code.Fragment] Fix crash in `Code.Fragment.surround_context/2` when \ 
matching on `->`
  * [IO] Raise when using `IO.binwrite/2` on terminated device (mirroring \ 
`IO.write/2`)
  * [Kernel] Do not expand aliases recursively (the alias stored in Macro.Env is \ 
already expanded)
  * [Kernel] Ensure `dbg` module is a compile-time dependency
  * [Kernel] Warn when a private function or macro uses `unquote/1` and the \ 
function/macro itself is unused
  * [Kernel] Re-enabled compiler optimizations for top level functions in \ 
scripts (disabled in v1.14.0 but shouldn't impact most programs)
  * [Kernel] Do not define an alias for nested modules starting with `Elixir.` \ 
in their definition
  * [Kernel.ParallelCompiler] Consider a module has been defined in \ 
`@after_compile` callbacks to avoid deadlocks
  * [Macro] Address exception on `Macro.to_string/1` for certain ASTs
  * [Path] Lazily evaluate `File.cwd!/0` in `Path.expand/1` and `Path.absname/1`
  * [Path] Ensure `Path.relative_to/2` returns a relative path when the given \ 
argument does not share a common prefix with `cwd`

#### ExUnit

  * [ExUnit] Raise on incorrectly dedented doctests

#### IEx

  * [IEx.Pry] Fix prying functions with only literals in their body

#### Mix

  * [mix archive.install] Restore code paths after `mix archive.install`
  * [mix compile] Ensure files with duplicate modules are recompiled whenever \ 
any of the files change
  * [mix compile] Update Mix compiler diagnostics documentation and typespecs to \ 
match the Elixir compiler behaviour where both lines and columns start from one \ 
(before it inaccurately said that columns started from zero)
  * [mix escript.install] Restore code paths after `mix escript.install`

### 3. Soft deprecations (no warnings emitted)

#### Elixir

  * [File] Deprecate `File.stream!(file, options, line_or_bytes)` in favor of \ 
keeping the options as last argument, as in `File.stream!(file, line_or_bytes, \ 
options)`
  * [Kernel.ParallelCompiler] Deprecate `Kernel.ParallelCompiler.async/1` in \ 
favor of `Kernel.ParallelCompiler.pmap/2`
  * [Path] Deprecate `Path.safe_relative_to/2` in favor of `Path.safe_relative/2`

#### Mix

  * [mix compile] Returning a four-element tuple as a position in \ 
`Mix.Task.Compiler.Diagnostic`

### 4. Hard deprecations

#### Elixir

  * [Date] Deprecate inferring a range with negative step, call `Date.range/3` \ 
with a negative step instead
  * [Enum] Deprecate passing a range with negative step on `Enum.slice/2`, give \ 
`first..last//1` instead
  * [Kernel] `~R/.../` is deprecated in favor of `~r/.../`. This is because \ 
`~R/.../` still allowed escape codes, which did not fit the definition of \ 
uppercase sigils
  * [String] Deprecate passing a range with negative step on `String.slice/2`, \ 
give `first..last//1` instead

#### ExUnit

  * [ExUnit.Formatter] Deprecate `format_time/2`, use `format_times/1` instead

#### Mix

  * [mix compile.leex] Require `:leex` to be added as a compiler to run the \ 
`leex` compiler
  * [mix compile.yecc] Require `:yecc` to be added as a compiler to run the \ 
`yecc` compiler

Log message:
elixir: updated to 1.15.7

v1.15.7

1. Enhancements

Elixir

[Elixir] Allow code evaluation across Elixir versions

2. Bug fixes

EEx

[EEx] Do not emit duplicate warnings from tokenizer
Mix

[mix format] Correctly match file to subdirectory in \ 
Mix.Tasks.Format.formatter_for_file/2

Log message:
elixir: updated to 1.15.4

v1.15.4

Bug fixes

Mix

[mix archive.build] Disable protocol consolidation when building archiveson \ 
archive.install
[mix compile] Track removed files per local dependency (this addresses a bug \ 
where files depending on modules from path dependencies always recompiled)
[mix release] Do not strip relevant chunks from Erlang/OTP 26

v1.15.3

1. Enhancements

Elixir

[Kernel] Improve better stacktraces when executing unnested Elixir code in a file

Mix

[Mix] Allow to opt out of starting apps in Mix.install/2

2. Bug fixes

Elixir

[Code] Ensure with_diagnostics propagate warnings from inner Erlang passes

IEx

[IEx] Fix --remsh on Erlang/OTP 25 and earlier

Mix

[mix compile.elixir] Ensure __mix_recompile__? callbacks are properly invoked

Log message:
elixir: updated to 1.15.2

v1.15.2

Bug fixes

IEx

[IEx] Fix CLI being unable to boot on Windows

v1.15.1

1. Enhancements

[Code] Code.string_to_quoted/2 honors :static_atoms_encoder for multi-letter sigils
2. Bug fixes

ExUnit

[ExUnit.CaptureLog] Fix race condition on concurrent capture_log
[ExUnit.CaptureLog] Respect options passed to nested capture_log calls
[ExUnit.Doctest] Properly compile doctests without results terminated by fences
[ExUnit.Doctest] Allow variables defined in doctests to be used in expectation
IEx

[IEx] Ensure pry works on Erlang/OTP 25 and earlier while IEx is booting
[IEx] Code.Fragment.surround_context considers surround context around spaces \ 
and parens
Logger

[Logger] Do not assume Logger has been loaded at compile-time
[Logger.Formatter] Properly handle :function as metadata
Mix

[mix compile] Ensure the current project is available on the code path after its \ 
Elixir sources are compiled
[mix compile] Guarantee yecc/leex are available when emitting warnings from \ 
previous runs
[mix compile] Fix bug where an external resource was deleted after its
mtime was successfully retrieved
[mix compile] Track removed modules and exports across local deps
[mix deps] Fix an issue where dependencies could not be started in an umbrella \ 
projects
[mix release] Properly handle optional dependencies when there is a conflict in \ 
the application start mode
[mix release] Remove --werl from release scripts on Erlang/OTP 26

Log message:
elixir: update to 1.15.0.

# Changelog for Elixir v1.15

This release requires Erlang/OTP 24 and later.

Elixir v1.15 is a smaller release with focused improvements
on compilation and boot times. This release also completes
our integration process with Erlang/OTP logger, bringing new
features such as log rotation and compaction out of the box.

You will also find additional convenience functions in `Code`,
`Map`, `Keyword`, all Calendar modules, and others.

## Compile and boot-time improvements

The last several releases brought improvements to compilation
time and this version is no different. In particular, Elixir
now caches and prunes load paths before compilation, ensuring your
project (and dependencies!) compile faster and in an environment
closer to production.

In a nutshell the Erlang VM loads modules from code paths. Each
application that ships with Erlang and Elixir plus each dependency
become an entry in your code path. The larger the code path, the
more work Erlang has to do in order to find a module.

In previous versions, Mix would only add entries to the load paths.
Therefore, if you compiled 20 dependencies and you went to compile
the 21st, the code path would have 21 entries (plus all Erlang and
Elixir apps). This allowed modules from unrelated dependencies to
be seen and made compilation slower the more dependencies you had.
With this release, we will now prune the code paths to only the ones
listed as dependencies, bringing the behaviour closer to `mix release`.

Furthermore, Erlang/OTP 26 allows us to start applications
concurrently and cache the code path lookups, decreasing the cost of
booting applications. The combination of Elixir v1.15 and Erlang/OTP 26
should reduce the boot time of applications, such as when starting
`iex -S mix` or running a single test with `mix test`, from 5% to 30%.

The compiler is also smarter in several ways: `@behaviour` declarations
no longer add compile-time dependencies and aliases in patterns and
guards add no dependency whatsoever, as no dispatching happens. Furthermore,
Mix now tracks the digests of `@external_resource` files, reducing the
amount of recompilation when swapping branches. Finally, dependencies
are automatically recompiled when their compile-time configuration changes.

### Potential incompatibilities

Due to the code path pruning, if you have an application or dependency
that does not specify its dependencies on Erlang and Elixir application,
it may no longer compile successfully in Elixir v1.15. You can temporarily
disable code path pruning by setting `prune_code_paths: false` in your
`mix.exs`, although doing so may lead to runtime bugs that are only
manifested inside a `mix release`.

## Compiler warnings and errors

The Elixir compiler can now emit many errors for a single file, making
sure more feedback is reported to developers before compilation is aborted.

In Elixir v1.14, an undefined function would be reported as:

    ** (CompileError) undefined function foo/0 (there is no such import)
        my_file.exs:1

In Elixir v1.15, the new reports will look like:

    error: undefined function foo/0 (there is no such import)
      my_file.exs:1

    ** (CompileError) my_file.exs: cannot compile file (errors have been logged)

A new function, called `Code.with_diagnostics/2`, has been added so this
information can be leveraged by editors, allowing them to point to several
errors at once.

## Integration with Erlang/OTP logger

This release provides additional features such as global logger
metadata and file logging (with rotation and compaction) out-of-the-box!

This release also soft-deprecates Elixir's Logger Backends in
favor of Erlang's Logger handlers. Elixir will automatically
convert your `:console` backend configuration into the new
configuration. Previously, you would set:

```elixir
config :logger, :console,
  level: :error,
  format: "$time $message $metadata"
```

Which is now translated to the equivalent:

```elixir
config :logger, :default_handler,
  level: :error

config :logger, :default_formatter,
  format: "$time $message $metadata"
```

If you use `Logger.Backends.Console` with a custom device or other
backends, they are still fully supported and functional. If you
implement your own backends, you want to consider migrating to
[`:logger_backends`](https://github.com/elixir-lang/logger_backends)
in the long term.

See the new `Logger` documentation for more information on the
new features and on compatibility.