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[release] Move CHANGELOG entries to 2.18

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Change-Id: I35d887541c8de985b55daed7c732c0d8302d278a
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/251542
Reviewed-by: Johnni Winther <johnniwinther@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Lasse Nielsen <lrn@google.com>
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Alexander Thomas 2022-07-14 14:13:28 +00:00
parent e473caca03
commit f2bd1e9641
1 changed files with 51 additions and 56 deletions
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107
CHANGELOG.md
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@ -1,71 +1,15 @@
## 2.19.0
#### Dart command line
- **Breaking change** [#46100](https://github.com/dart-lang/sdk/issues/46100):
The standalone `dartanalyzer` tool has been removed as previously
announced. `dartanalyzer` is replaced by the `dart analyze` command.
### Language
- **Breaking Change** [#48167](https://github.com/dart-lang/sdk/issues/48167):
Mixin of classes that don't extend `Object` is no longer supported:
```dart
class Base {}
class Mixin extends Base {}
class C extends Base with Mixin {}
```
This should instead be written using a mixin declaration of `Mixin`:
```dart
class Base {}
mixin Mixin on Base {}
class C extends Base with Mixin {}
```
This feature has not been supported in most compilation targets for some
time but is now completely removed.
### Libraries
#### `dart:async`
- The `Stream.fromIterable` stream can now be listened to more than once.
### `dart:collection`
- Deprecates `BidirectionalIterator`.
### `dart:developer`
- Deprecates `UserTag.MAX_USER_TAGS` in favor of `UserTag.maxUserTags`.
### Dart VM
Implementation of `async`/`async*`/`sync*` is revamped in Dart VM,
both in JIT and AOT modes. This also affects Flutter except Flutter Web.
Besides smaller code size and better performance of async methods,
the new implementation carries a few subtle changes in behavior:
- If `async` method returns before reaching the first `await`, it now returns a completed Future.
Previously `async` methods completed resulting Future in separate microtasks.
- Stack traces no longer have duplicate entries for `async` methods.
- New implementation now correctly throws an error if `null` occurs as
an argument of a logical expression (`&&` and `||`) which also contains
an `await`.
- New implementation avoids unnecessary extending the liveness of local
variables in `async`/`async*`/`sync*` methods, which means that unused
objects stored in local variables in such methods might be garbage
collected earlier than they were before
(see issue [#36983](https://github.com/dart-lang/sdk/issues/36983) for details).
### Tools
#### Dart command line
#### Linter
Updated the Linter to `1.26.0`, which includes changes that
@ -131,8 +75,32 @@ them, you must set the lower bound on the SDK constraint for your package to
}
```
- **Breaking Change** [#48167](https://github.com/dart-lang/sdk/issues/48167):
Mixin of classes that don't extend `Object` is no longer supported:
```dart
class Base {}
class Mixin extends Base {}
class C extends Base with Mixin {}
```
This should instead be written using a mixin declaration of `Mixin`:
```dart
class Base {}
mixin Mixin on Base {}
class C extends Base with Mixin {}
```
This feature has not been supported in most compilation targets for some
time but is now completely removed.
### Core libraries
#### `dart:async`
- The `Stream.fromIterable` stream can now be listened to more than once.
### `dart:collection`
- Deprecates `BidirectionalIterator`.
#### `dart:html`
- Add `connectionState` attribute and `connectionstatechange` listener to
@ -202,6 +170,29 @@ them, you must set the lower bound on the SDK constraint for your package to
- Allow omitting the `unencodedPath` positional argument to `Uri.http` and
`Uri.https` to default to an empty path.
### Dart VM
Implementation of `async`/`async*`/`sync*` is revamped in Dart VM,
both in JIT and AOT modes. This also affects Flutter except Flutter Web.
Besides smaller code size and better performance of async methods,
the new implementation carries a few subtle changes in behavior:
- If `async` method returns before reaching the first `await`, it now returns a completed Future.
Previously `async` methods completed resulting Future in separate microtasks.
- Stack traces no longer have duplicate entries for `async` methods.
- New implementation now correctly throws an error if `null` occurs as
an argument of a logical expression (`&&` and `||`) which also contains
an `await`.
- New implementation avoids unnecessary extending the liveness of local
variables in `async`/`async*`/`sync*` methods, which means that unused
objects stored in local variables in such methods might be garbage
collected earlier than they were before
(see issue [#36983](https://github.com/dart-lang/sdk/issues/36983) for details).
### Tools
#### Dart command line
@ -211,6 +202,10 @@ them, you must set the lower bound on the SDK constraint for your package to
announced. `dart2js` is replaced by the `dart compile js` command, `dartdevc`
is no longer exposed as a command-line tool.
- **Breaking change** [#46100](https://github.com/dart-lang/sdk/issues/46100):
The standalone `dartanalyzer` tool has been removed as previously
announced. `dartanalyzer` is replaced by the `dart analyze` command.
#### Linter
Updated the Linter to `1.25.0`, which includes changes that