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| CHANGELOG for 3.x | ||
| ================= | ||
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| * 3.0.0 (xxxx-xx-xx) | ||
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| New major release. | ||
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| * Introduce a global task queue to eliminate recursion and reduce stack size | ||
| when chaining promises (#28). | ||
| * BC break: The progression API has been removed (#32). | ||
| * BC break: The promise-array related functions (`all()`, `race()`, `any()`, | ||
| `some()`, `map()`, `reduce()`) now require an array of promises or values | ||
| as input. Before, arrays and promises which resolve to an array were | ||
| supported, other input types resolved to empty arrays or `null` (#35). | ||
| * BC break: `race()` now returns a forever pending promise when called with | ||
| an empty array (#83). | ||
| The behavior is now also in line with the ES6 specification. | ||
| * BC break: The interfaces `PromiseInterface`, `ExtendedPromiseInterface` | ||
| and `CancellablePromiseInterface` have been merged into a single | ||
| `PromiseInterface` (#75). | ||
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| Please note, that the following code (which has been commonly used to | ||
| conditionally cancel a promise) is not longer possible: | ||
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| ```php | ||
| if ($promise instanceof CancellablePromiseInterface) { | ||
| $promise->cancel(); | ||
| } | ||
| ``` | ||
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| If only supporting react/promise >= 3.0, it can be simply changed to: | ||
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| ```php | ||
| if ($promise instanceof PromiseInterface) { | ||
| $promise->cancel(); | ||
| } | ||
| ``` | ||
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| If also react/promise < 3.0 must be supported, the following code can be | ||
| used: | ||
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| ```php | ||
| if ($promise instanceof PromiseInterface) { | ||
| \React\Promise\resolve($promise)->cancel(); | ||
| } | ||
| ``` | ||
| * BC break: When rejecting a promise, a `\Throwable` or `\Exception` | ||
| instance is enforced as the rejection reason (#93). | ||
| This means, it is not longer possible to reject a promise without a reason | ||
| or with another promise. | ||
| # Changelog | ||
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| ## 3.0.0 (2023-07-11) | ||
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| A major new feature release, see [**release announcement**](https://clue.engineering/2023/announcing-reactphp-promise-v3). | ||
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| * We'd like to emphasize that this component is production ready and battle-tested. | ||
| We plan to support all long-term support (LTS) releases for at least 24 months, | ||
| so you have a rock-solid foundation to build on top of. | ||
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| * The v3 release will be the way forward for this package. However, we will still | ||
| actively support v2 and v1 to provide a smooth upgrade path for those not yet | ||
| on the latest versions. | ||
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| This update involves some major new features and a minor BC break over the | ||
| `v2.0.0` release. We've tried hard to avoid BC breaks where possible and | ||
| minimize impact otherwise. We expect that most consumers of this package will be | ||
| affected by BC breaks, but updating should take no longer than a few minutes. | ||
| See below for more details: | ||
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| * BC break: PHP 8.1+ recommended, PHP 7.1+ required. | ||
| (#138 and #149 by @WyriHaximus) | ||
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| * Feature / BC break: The `PromiseInterface` now includes the functionality of the old ~~`ExtendedPromiseInterface`~~ and ~~`CancellablePromiseInterface`~~. | ||
| Each promise now always includes the `then()`, `catch()`, `finally()` and `cancel()` methods. | ||
| The new `catch()` and `finally()` methods replace the deprecated ~~`otherwise()`~~ and ~~`always()`~~ methods which continue to exist for BC reasons. | ||
| The old ~~`ExtendedPromiseInterface`~~ and ~~`CancellablePromiseInterface`~~ are no longer needed and have been removed as a consequence. | ||
| (#75 by @jsor and #208 by @clue and @WyriHaximus) | ||
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| ```php | ||
| // old (multiple interfaces may or may not be implemented) | ||
| assert($promise instanceof PromiseInterface); | ||
| assert(method_exists($promise, 'then')); | ||
| if ($promise instanceof ExtendedPromiseInterface) { assert(method_exists($promise, 'otherwise')); } | ||
| if ($promise instanceof ExtendedPromiseInterface) { assert(method_exists($promise, 'always')); } | ||
| if ($promise instanceof CancellablePromiseInterface) { assert(method_exists($promise, 'cancel')); } | ||
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| // new (single PromiseInterface with all methods) | ||
| assert($promise instanceof PromiseInterface); | ||
| assert(method_exists($promise, 'then')); | ||
| assert(method_exists($promise, 'catch')); | ||
| assert(method_exists($promise, 'finally')); | ||
| assert(method_exists($promise, 'cancel')); | ||
| ``` | ||
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| * Feature / BC break: Improve type safety of promises. Require `mixed` fulfillment value argument and `Throwable` (or `Exception`) as rejection reason. | ||
| Add PHPStan template types to ensure strict types for `resolve(T $value): PromiseInterface<T>` and `reject(Throwable $reason): PromiseInterface<never>`. | ||
| It is no longer possible to resolve a promise without a value (use `null` instead) or reject a promise without a reason (use `Throwable` instead). | ||
| (#93, #141 and #142 by @jsor, #138, #149 and #247 by @WyriHaximus and #213 and #246 by @clue) | ||
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| ```php | ||
| // old (arguments used to be optional) | ||
| $promise = resolve(); | ||
| $promise = reject(); | ||
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| // new (already supported before) | ||
| $promise = resolve(null); | ||
| $promise = reject(new RuntimeException()); | ||
| ``` | ||
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| * Feature / BC break: Report all unhandled rejections by default and remove ~~`done()`~~ method. | ||
| Add new `set_rejection_handler()` function to set the global rejection handler for unhandled promise rejections. | ||
| (#248, #249 and #224 by @clue) | ||
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| ```php | ||
| // Unhandled promise rejection with RuntimeException: Unhandled in example.php:2 | ||
| reject(new RuntimeException('Unhandled')); | ||
| ``` | ||
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| * BC break: Remove all deprecated APIs and reduce API surface. | ||
| Remove ~~`some()`~~, ~~`map()`~~, ~~`reduce()`~~ functions, use `any()` and `all()` functions instead. | ||
| Remove internal ~~`FulfilledPromise`~~ and ~~`RejectedPromise`~~ classes, use `resolve()` and `reject()` functions instead. | ||
| Remove legacy promise progress API (deprecated third argument to `then()` method) and deprecated ~~`LazyPromise`~~ class. | ||
| (#32 and #98 by @jsor and #164, #219 and #220 by @clue) | ||
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| * BC break: Make all classes final to encourage composition over inheritance. | ||
| (#80 by @jsor) | ||
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| * Feature / BC break: Require `array` (or `iterable`) type for `all()` + `race()` + `any()` functions and bring in line with ES6 specification. | ||
| These functions now require a single argument with a variable number of promises or values as input. | ||
| (#225 by @clue and #35 by @jsor) | ||
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| * Fix / BC break: Fix `race()` to return a forever pending promise when called with an empty `array` (or `iterable`) and bring in line with ES6 specification. | ||
| (#83 by @jsor and #225 by @clue) | ||
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| * Minor performance improvements by initializing `Deferred` in the constructor and avoiding `call_user_func()` calls. | ||
| (#151 by @WyriHaximus and #171 by @Kubo2) | ||
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| * Minor documentation improvements. | ||
| (#110 by @seregazhuk, #132 by @CharlotteDunois, #145 by @danielecr, #178 by @WyriHaximus, #189 by @srdante, #212 by @clue, #214, #239 and #243 by @SimonFrings and #231 by @nhedger) | ||
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| The following changes had to be ported to this release due to our branching | ||
| strategy, but also appeared in the [`2.x` branch](https://github.com/reactphp/promise/tree/2.x): | ||
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| * Feature: Support union types and address deprecation of `ReflectionType::getClass()` (PHP 8+). | ||
| (#197 by @cdosoftei and @SimonFrings) | ||
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| * Feature: Support intersection types (PHP 8.1+). | ||
| (#209 by @bzikarsky) | ||
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| * Feature: Support DNS types (PHP 8.2+). | ||
| (#236 by @nhedger) | ||
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| * Feature: Port all memory improvements from `2.x` to `3.x`. | ||
| (#150 by @clue and @WyriHaximus) | ||
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| * Fix: Fix checking whether cancellable promise is an object and avoid possible warning. | ||
| (#161 by @smscr) | ||
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| * Improve performance by prefixing all global functions calls with \ to skip the look up and resolve process and go straight to the global function. | ||
| (#134 by @WyriHaximus) | ||
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| * Improve test suite, update PHPUnit and PHP versions and add `.gitattributes` to exclude dev files from exports. | ||
| (#107 by @carusogabriel, #148 and #234 by @WyriHaximus, #153 by @reedy, #162, #230 and #240 by @clue, #173, #177, #185 and #199 by @SimonFrings, #193 by @woodongwong and #210 by @bzikarsky) | ||
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| The following changes were originally planned for this release but later reverted | ||
| and are not part of the final release: | ||
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| * Add iterative callback queue handler to avoid recursion (later removed to improve Fiber support). | ||
| (#28, #82 and #86 by @jsor, #158 by @WyriHaximus and #229 and #238 by @clue) | ||
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| * Trigger an `E_USER_ERROR` instead of throwing an exception from `done()` (later removed entire `done()` method to globally report unhandled rejections). | ||
| (#97 by @jsor and #224 and #248 by @clue) | ||
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| * Add type declarations for `some()` (later removed entire `some()` function). | ||
| (#172 by @WyriHaximus and #219 by @clue) | ||
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| ## 2.0.0 (2013-12-10) | ||
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| See [`2.x` CHANGELOG](https://github.com/reactphp/promise/blob/2.x/CHANGELOG.md) for more details. | ||
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| ## 1.0.0 (2012-11-07) | ||
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| See [`1.x` CHANGELOG](https://github.com/reactphp/promise/blob/1.x/CHANGELOG.md) for more details. |
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