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--- | ||
source_url: https://github.com/laravel/docs/blob/6.x/releases.md | ||
revision: 31944de4e5e7f59d50d5de0f5d064f49bffae723 | ||
status: ready | ||
--- | ||
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# Notas de Versão | ||
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- [Esquema de Versionamento](#esquema-de-versionamento) | ||
- [Política de Suporte](#politica-de-suporte) | ||
- [Laravel 6](#laravel-6) | ||
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## Esquema de Versionamento | ||
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O Laravel e seus outros pacotes originais seguem o | ||
[Versionamento Semântico](https://semver.org/lang/pt-BR/). | ||
As versões maiores do _framework_ são lançadas a cada seis meses (em fevereiro e | ||
agosto), enquanto as versões menores e de correções podem ser lançadas | ||
semanalmente. | ||
Versões menores e de correções **nunca** devem conter alterações significativas. | ||
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Ao referenciar o _framework_ Laravel e seus componentes a partir da sua | ||
aplicação ou pacote, você deve sempre usar uma restrição de versão como `^6.0`, | ||
uma vez que as principais versões do Laravel incluem alterações significativas. | ||
No entanto, nos esforçamos para sempre garantir que você possa atualizar para | ||
uma nova versão maior em um dia ou menos. | ||
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## Política de Suporte | ||
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Para versões LTS, como o Laravel 6, as correções de falhas são fornecidas por 2 | ||
anos e as correções de segurança são fornecidas por 3 anos. | ||
Essas versões oferecem a janela mais longa de suporte e manutenção. | ||
Para versões gerais, as correções de falhas são fornecidas por 6 meses e as | ||
correções de segurança são fornecidas por 1 ano. | ||
Para todas as bibliotecas adicionais, incluindo Lumen, apenas a versão maior | ||
mais recente recebe correções de falhas. | ||
Além disso, revise as versões do banco de dados | ||
[suportadas pelo Laravel](../database.md#introduction). | ||
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| Versão | Lançamento | Correções de falhas até | Correções de segurança até | | ||
|:---------:|:-----------------------:|:-----------------------:|:--------------------------:| | ||
| 5.5 (LTS) | 30 de agosto de 2017 | 30 de agosto de 2019 | 30 de agosto de 2020 | | ||
| 5.6 | 7 de fevereiro de 2018 | 7 de agosto de 2018 | 7 de fevereiro de 2019 | | ||
| 5.7 | 4 de setembro de 2018 | 4 de março de 2019 | 4 de setembro de 2019 | | ||
| 5.8 | 26 de fevereiro de 2019 | 26 de agosto de 2019 | 26 de fevereiro de 2020 | | ||
| 6 (LTS) | 3 de setembro de 2019 | 3 de setembro de 2021 | 3 de setembro de 2022 | | ||
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## Laravel 6 | ||
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Laravel 6 (LTS) continues the improvements made in Laravel 5.8 by introducing | ||
semantic versioning, compatibility | ||
with [Laravel Vapor](https://vapor.laravel.com), improved authorization | ||
responses, job middleware, lazy collections, subquery improvements, the | ||
extraction of frontend scaffolding to the `laravel/ui` Composer package, and a | ||
variety of other bug fixes and usability improvements. | ||
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### Semantic Versioning | ||
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The Laravel framework (`laravel/framework`) package now follows | ||
the [semantic versioning](https://semver.org/) standard. This makes the | ||
framework consistent with the other first-party Laravel packages which already | ||
followed this versioning standard. The Laravel release cycle will remain | ||
unchanged. | ||
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### Laravel Vapor Compatibility | ||
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_Laravel Vapor was built by [Taylor Otwell](https://github.com/taylorotwell)_. | ||
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Laravel 6 provides compatibility | ||
with [Laravel Vapor](https://vapor.laravel.com), an auto-scaling serverless | ||
deployment platform for Laravel. Vapor abstracts the complexity of managing | ||
Laravel applications on AWS Lambda, as well as interfacing those applications | ||
with SQS queues, databases, Redis clusters, networks, CloudFront CDN, and more. | ||
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### Improved Exceptions Via Ignition | ||
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Laravel 6 ships with [Ignition](https://github.com/facade/ignition), a new open | ||
source exception detail page created by Freek Van der Herten and Marcel Pociot. | ||
Ignition offers many benefits over previous releases, such as improved Blade | ||
error file and line number handling, runnable solutions for common problems, | ||
code editing, exception sharing, and an improved UX. | ||
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### Improved Authorization Responses | ||
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_Improved authorization responses were implemented | ||
by [Gary Green](https://github.com/garygreen)_. | ||
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In previous releases of Laravel, it was difficult to retrieve and expose custom | ||
authorization messages to end users. This made it difficult to explain to | ||
end-users exactly why a particular request was denied. In Laravel 6, this is now | ||
much easier using authorization response messages and the new `Gate::inspect` | ||
method. For example, given the following policy method: | ||
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/** | ||
* Determine if the user can view the given flight. | ||
* | ||
* @param \App\User $user | ||
* @param \App\Flight $flight | ||
* @return mixed | ||
*/ | ||
public function view(User $user, Flight $flight) | ||
{ | ||
return $this->deny('Explanation of denial.'); | ||
} | ||
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The authorization policy's response and message may be easily retrieved using | ||
the `Gate::inspect` method: | ||
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$response = Gate::inspect('view', $flight); | ||
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if ($response->allowed()) { | ||
// User is authorized to view the flight... | ||
} | ||
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if ($response->denied()) { | ||
echo $response->message(); | ||
} | ||
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In addition, these custom messages will automatically be returned to your | ||
frontend when using helper methods such as `$this->authorize` | ||
or `Gate::authorize` from your routes or controllers. | ||
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### Job Middleware | ||
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_Job middleware were implemented | ||
by [Taylor Otwell](https://github.com/taylorotwell)_. | ||
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Job middleware allow you to wrap custom logic around the execution of queued | ||
jobs, reducing boilerplate in the jobs themselves. For example, in previous | ||
releases of Laravel, you may have wrapped the logic of a job's `handle` method | ||
within a rate-limited callback: | ||
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/** | ||
* Execute the job. | ||
* | ||
* @return void | ||
*/ | ||
public function handle() | ||
{ | ||
Redis::throttle('key')->block(0)->allow(1)->every(5)->then(function () { | ||
info('Lock obtained...'); | ||
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// Handle job... | ||
}, function () { | ||
// Could not obtain lock... | ||
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return $this->release(5); | ||
}); | ||
} | ||
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In Laravel 6, this logic may be extracted into a job middleware, allowing you to | ||
keep your job's `handle` method free of any rate limiting responsibilities: | ||
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<?php | ||
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namespace App\Jobs\Middleware; | ||
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use Illuminate\Support\Facades\Redis; | ||
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class RateLimited | ||
{ | ||
/** | ||
* Process the queued job. | ||
* | ||
* @param mixed $job | ||
* @param callable $next | ||
* @return mixed | ||
*/ | ||
public function handle($job, $next) | ||
{ | ||
Redis::throttle('key') | ||
->block(0)->allow(1)->every(5) | ||
->then(function () use ($job, $next) { | ||
// Lock obtained... | ||
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$next($job); | ||
}, function () use ($job) { | ||
// Could not obtain lock... | ||
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$job->release(5); | ||
}); | ||
} | ||
} | ||
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After creating middleware, they may be attached to a job by returning them from | ||
the job's `middleware` method: | ||
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use App\Jobs\Middleware\RateLimited; | ||
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/** | ||
* Get the middleware the job should pass through. | ||
* | ||
* @return array | ||
*/ | ||
public function middleware() | ||
{ | ||
return [new RateLimited]; | ||
} | ||
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### Lazy Collections | ||
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_Lazy collections were implemented | ||
by [Joseph Silber](https://github.com/JosephSilber)_. | ||
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Many developers already enjoy Laravel's | ||
powerful [Collection methods](https://laravel.com/docs/collections). To | ||
supplement the already powerful `Collection` class, Laravel 6 introduces | ||
a `LazyCollection`, which leverages | ||
PHP's [generators](https://www.php.net/manual/en/language.generators.overview.php) | ||
to allow you to work with very large datasets while keeping memory usage low. | ||
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For example, imagine your application needs to process a multi-gigabyte log file | ||
while taking advantage of Laravel's collection methods to parse the logs. | ||
Instead of reading the entire file into memory at once, lazy collections may be | ||
used to keep only a small part of the file in memory at a given time: | ||
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use App\LogEntry; | ||
use Illuminate\Support\LazyCollection; | ||
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LazyCollection::make(function () { | ||
$handle = fopen('log.txt', 'r'); | ||
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while (($line = fgets($handle)) !== false) { | ||
yield $line; | ||
} | ||
}) | ||
->chunk(4) | ||
->map(function ($lines) { | ||
return LogEntry::fromLines($lines); | ||
}) | ||
->each(function (LogEntry $logEntry) { | ||
// Process the log entry... | ||
}); | ||
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Or, imagine you need to iterate through 10,000 Eloquent models. When using | ||
traditional Laravel collections, all 10,000 Eloquent models must be loaded into | ||
memory at the same time: | ||
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$users = App\User::all()->filter(function ($user) { | ||
return $user->id > 500; | ||
}); | ||
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However, beginning in Laravel 6, the query builder's `cursor` method has been | ||
updated to return a `LazyCollection` instance. This allows you to still only run | ||
a single query against the database but also only keep one Eloquent model loaded | ||
in memory at a time. In this example, the `filter` callback is not executed | ||
until we actually iterate over each user individually, allowing for a drastic | ||
reduction in memory usage: | ||
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$users = App\User::cursor()->filter(function ($user) { | ||
return $user->id > 500; | ||
}); | ||
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foreach ($users as $user) { | ||
echo $user->id; | ||
} | ||
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### Eloquent Subquery Enhancements | ||
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_Eloquent subquery enhancements were implemented | ||
by [Jonathan Reinink](https://github.com/reinink)_. | ||
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Laravel 6 introduces several new enhancements and improvements to database | ||
subquery support. For example, let's imagine that we have a table of | ||
flight `destinations` and a table of `flights` to destinations. The `flights` | ||
table contains an `arrived_at` column which indicates when the flight arrived at | ||
the destination. | ||
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Using the new subquery select functionality in Laravel 6, we can select all of | ||
the `destinations` and the name of the flight that most recently arrived at that | ||
destination using a single query: | ||
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return Destination::addSelect(['last_flight' => Flight::select('name') | ||
->whereColumn('destination_id', 'destinations.id') | ||
->orderBy('arrived_at', 'desc') | ||
->limit(1) | ||
])->get(); | ||
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In addition, we can use new subquery features added to the query | ||
builder's `orderBy` function to sort all destinations based on when the last | ||
flight arrived at that destination. Again, this may be done while executing a | ||
single query against the database: | ||
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return Destination::orderByDesc( | ||
Flight::select('arrived_at') | ||
->whereColumn('destination_id', 'destinations.id') | ||
->orderBy('arrived_at', 'desc') | ||
->limit(1) | ||
)->get(); | ||
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### Laravel UI | ||
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The frontend scaffolding typically provided with previous releases of Laravel | ||
has been extracted into a `laravel/ui` Composer package. This allows the | ||
first-party UI scaffolding to be developed and versioned separately from the | ||
primary framework. As a result of this change, no Bootstrap or Vue code is | ||
present in default framework scaffolding, and the `make:auth` command has been | ||
extracted from the framework as well. | ||
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In order to restore the traditional Vue / Bootstrap scaffolding present in | ||
previous releases of Laravel, you may install the `laravel/ui` package and use | ||
the `ui` Artisan command to install the frontend scaffolding: | ||
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composer require laravel/ui "^1.0" --dev | ||
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php artisan ui vue --auth |
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