dart:core
:Set.difference
now takes aSet<Object>
as argument.
- Allow
=
as well as:
as separator for named parameter default values.
Patch release, resolves one issue:
- Dartium: Fixes a bug that caused crashes. No issue filed
-
We have improved the way that the VM locates the native code library for a native extension (e.g.
dart-ext:
import). We have updated this article on native extensions to reflect the VM's improved behavior. -
Linux builds of the VM will now use the
tcmalloc
library for memory allocation. This has the advantages of better debugging and profiling support and faster small allocations, with the cost of slightly larger initial memory footprint, and slightly slower large allocations. -
We have improved the way the VM searches for trusted root certificates for secure socket connections on Linux. First, the VM will look for trusted root certificates in standard locations on the file system (
/etc/pki/tls/certs/ca-bundle.crt
followed by/etc/ssl/certs
), and only if these do not exist will it fall back on the builtin trusted root certificates. This behavior can be overridden on Linux with the new flags--root-certs-file
and--root-certs-cache
. The former is the path to a file containing the trusted root certificates, and the latter is the path to a directory containing root certificate files hashed usingc_rehash
. -
The VM now throws a catchable
Error
when method compilation fails. This allows easier debugging of syntax errors, especially when testing.
dart:core
: Remove deprecatedResource
class. Use the class inpackage:resource
instead.dart:async
Future.wait
now catches synchronous errors and returns them in the returned Future.- More aggressively returns a
Future
onStream.cancel
operations. Discourages to returnnull
fromcancel
. - Fixes a few bugs where the cancel future wasn't passed through transformations.
dart:io
- Added
WebSocket.addUtf8Text
to allow sending a pre-encoded text message without a round-trip UTF-8 conversion.
- Added
-
Breaking change - it is an error if a generic type parameter cannot be inferred (SDK issue 26992).
class Cup<T> { Cup(T t); } main() { // Error because: // - if we choose Cup<num> it is not assignable to `cOfInt`, // - if we choose Cup<int> then `n` is not assignable to int. num n; C<int> cOfInt = new C(n); }
-
New feature - use
@checked
to override a method and tighten a parameter type (SDK issue 25578).import 'package:meta/meta.dart' show checked; class View { addChild(View v) {} } class MyView extends View { // this override is legal, it will check at runtime if we actually // got a MyView. addChild(@checked MyView v) {} } main() { dynamic mv = new MyView(); mv.addChild(new View()); // runtime error }
-
New feature - use
@virtual
to allow field overrides in strong mode (SDK issue 27384).import 'package:meta/meta.dart' show virtual; class Base { @virtual int x; } class Derived extends Base { int x; // Expose the hidden storage slot: int get superX => super.x; set superX(int v) { super.x = v; } }
-
Breaking change - infer list and map literals from the context type as well as their values, consistent with generic methods and instance creation (SDK issue 27151).
import 'dart:async'; main() async { var b = new Future<B>.value(new B()); var c = new Future<C>.value(new C()); var/*infer List<Future<A>>*/ list = [b, c]; var/*infer List<A>*/ result = await Future.wait(list); } class A {} class B extends A {} class C extends A {}
-
dartfmt
- upgraded to v0.2.10- Don't crash on annotations before parameters with trailing commas.
- Always split enum declarations if they end in a trailing comma.
- Add
--set-exit-if-changed
to set the exit code on a change.
-
Pub
- Pub no longer generates a
packages/
directory by default. Instead, it generates a.packages
file, called a package spec. To generate apackages/
directory in addition to the package spec, use the--packages-dir
flag withpub get
,pub upgrade
, andpub downgrade
.
- Pub no longer generates a
Patch release, resolves one issue:
- Dartdoc: Fixes a bug that prevented generation of docs (Dartdoc issue 1233)
- The language now allows a trailing comma after the last argument of a call and the last parameter of a function declaration. This can make long argument or parameter lists easier to maintain, as commas can be left as-is when reordering lines. For details, see SDK issue 26644.
-
dartfmt
- upgraded to v0.2.9+1- Support trailing commas in argument and parameter lists.
- Gracefully handle read-only files.
- About a dozen other bug fixes.
-
Pub
-
Added a
--no-packages-dir
flag topub get
,pub upgrade
, andpub downgrade
. When this flag is passed, pub will not generate apackages/
directory, and will remove that directory and any symlinks to it if they exist. Note that this replaces the unsupported--no-package-symlinks
flag. -
Added the ability for packages to declare a constraint on the Flutter SDK:
environment: flutter: ^0.1.2 sdk: >=1.19.0 <2.0.0
A Flutter constraint will only be satisfiable when pub is running in the context of the
flutter
executable, and when the Flutter SDK version matches the constraint. -
Added
sdk
as a new package source that fetches packages from a hard-coded SDK. Currently only theflutter
SDK is supported:dependencies: flutter_driver: sdk: flutter version: ^0.0.1
A Flutter
sdk
dependency will only be satisfiable when pub is running in the context of theflutter
executable, and when the Flutter SDK contains a package with the given name whose version matches the constraint. -
tar
files on Linux are now created with0
as the user and group IDs. This fixes a crash when publishing packages while using Active Directory. -
Fixed a bug where packages from a hosted HTTP URL were considered the same as packages from an otherwise-identical HTTPS URL.
-
Fixed timer formatting for timers that lasted longer than a minute.
-
Eliminate some false negatives when determining whether global executables are on the user's executable path.
-
-
dart2js
dart2dart
(akadart2js --output-type=dart
) has been removed (this was deprecated in Dart 1.11).
- The dependency on BoringSSL has been rolled forward. Going forward, builds of the Dart VM including secure sockets will require a compiler with C++11 support. For details, see the Building wiki page.
-
New feature - an option to disable implicit casts (SDK issue 26583), see the documentation for usage instructions and examples.
-
New feature - an option to disable implicit dynamic (SDK issue 25573), see the documentation for usage instructions and examples.
-
Breaking change - infer generic type arguments from the constructor invocation arguments (SDK issue 25220).
var map = new Map<String, String>(); // infer: Map<String, String> var otherMap = new Map.from(map);
-
Breaking change - infer local function return type (SDK issue 26414).
void main() { // infer: return type is int f() { return 40; } int y = f() + 2; // type checks print(y); }
-
Breaking change - allow type promotion from a generic type parameter (SDK issue 26414).
void fn/*<T>*/(/*=T*/ object) { if (object is String) { // Treat `object` as `String` inside this block. // But it will require a cast to pass it to something that expects `T`. print(object.substring(1)); } }
-
Breaking change - smarter inference for Future.then (SDK issue 25944). Previous workarounds that use async/await or
.then/*<Future<SomeType>>*/
should no longer be necessary.// This will now infer correctly. Future<List<int>> t2 = f.then((_) => [3]); // This infers too. Future<int> t2 = f.then((_) => new Future.value(42));
-
Breaking change - smarter inference for async functions (SDK issue 25322).
void test() async { List<int> x = await [4]; // was previously inferred List<int> y = await new Future.value([4]); // now inferred too }
-
Breaking change - sideways casts are no longer allowed (SDK issue 26120).
Patch release, resolves two issues and improves performance:
-
Debugger: Fixes a bug that crashes the VM (SDK issue 26941)
-
VM: Fixes an optimizer bug involving closures, try, and await (SDK issue 26948)
-
Dart2js: Speeds up generated code on Firefox (https://codereview.chromium.org/2180533002)
dart:core
- Improved performance when parsing some common URIs.
- Fixed bug in
Uri.resolve
(SDK issue 26804).
dart:io
- Adds file locking modes
FileLock.BLOCKING_SHARED
andFileLock.BLOCKING_EXCLUSIVE
.
- Adds file locking modes
Patch release, resolves two issues:
-
VM: Fixes a bug that caused crashes in async functions. (SDK issue 26668)
-
VM: Fixes a bug that caused garbage collection of reachable weak properties. (https://codereview.chromium.org/2041413005)
-
dart:convert
- Deprecate
ChunkedConverter
which was erroneously added in 1.16.
- Deprecate
-
dart:core
Uri.replace
supports iterables as values for the query parameters.Uri.parseIPv6Address
returns aUint8List
.
-
dart:io
- Added
NetworkInterface.listSupported
, which istrue
whenNetworkInterface.list
is supported, andfalse
otherwise. Currently,NetworkInterface.list
is not supported on Android.
- Added
-
Pub
-
TAR files created while publishing a package on Mac OS and Linux now use a more portable format.
-
Errors caused by invalid arguments now print the full usage information for the command.
-
SDK constraints for dependency overrides are no longer considered when determining the total SDK constraint for a lockfile.
-
A bug has been fixed in which a lockfile was considered up-to-date when it actually wasn't.
-
A bug has been fixed in which
pub get --offline
would crash when a prerelease version was selected.
-
-
Dartium and content shell
- Debugging Dart code inside iframes improved, was broken.
Patch release, resolves one issue:
- VM: Fixes a bug that caused intermittent hangs on Windows. (SDK issue 26400)
-
dart:convert
-
Added
BASE64URL
codec and correspondingBase64Codec.urlSafe
constructor. -
Introduce
ChunkedConverter
and deprecate chunked methods onConverter
.
-
-
dart:html
There have been a number of BREAKING changes to align APIs with recent changes in Chrome. These include:
-
Chrome's
ShadowRoot
interface no longer has the methodsgetElementById
,getElementsByClassName
, andgetElementsByTagName
, e.g.,elem.shadowRoot.getElementsByClassName('clazz')
should become:
elem.shadowRoot.querySelectorAll('.clazz')
-
The
clipboardData
property has been removed fromKeyEvent
andEvent
. It has been moved to the newClipboardEvent
class, which is now used bycopy
,cut
, andpaste
events. -
The
layer
property has been removed fromKeyEvent
andUIEvent
. It has been moved toMouseEvent
. -
The
Point get page
property has been removed fromUIEvent
. It still exists onMouseEvent
andTouch
.
There have also been a number of other additions and removals to
dart:html
,dart:indexed_db
,dart:svg
,dart:web_audio
, anddart:web_gl
that correspond to changes to Chrome APIs between v39 and v45. Many of the breaking changes represent APIs that would have caused runtime exceptions when compiled to Javascript and run on recent Chrome releases. -
-
dart:io
- Added
SecurityContext.alpnSupported
, which is true if a platform supports ALPN, and false otherwise.
- Added
For performance reasons, a potentially BREAKING change was added for
libraries that use JS interop.
Any Dart file that uses @JS
annotations on declarations (top-level functions,
classes or class members) to interop with JavaScript code will require that the
file have the annotation @JS()
on a library directive.
@JS()
library my_library;
The analyzer will enforce this by generating the error:
The @JS()
annotation can only be used if it is also declared on the library
directive.
If part file uses the @JS()
annotation, the library that uses the part should
have the @JS()
annotation e.g.,
// library_1.dart
@JS()
library library_1;
import 'package:js/js.dart';
part 'part_1.dart';
// part_1.dart
part of library_1;
@JS("frameworkStabilizers")
external List<FrameworkStabilizer> get frameworkStabilizers;
If your library already has a JS module e.g.,
@JS('array.utils')
library my_library;
Then your library will work without any additional changes.
-
Static checking of
for in
statements. These will now produce static warnings:// Not Iterable. for (var i in 1234) { ... } // String cannot be assigned to int. for (int n in <String>["a", "b"]) { ... }
-
Pub
-
pub serve
now provides caching headers that should improve the performance of requesting large files multiple times. -
Both
pub get
andpub upgrade
now have a--no-precompile
flag that disables precompilation of executables and transformed dependencies. -
pub publish
now resolves symlinks when publishing from a Git repository. This matches the behavior it always had when publishing a package that wasn't in a Git repository.
-
-
Dart Dev Compiler
-
The experimental
dartdevc
executable has been added to the SDK. -
It will help early adopters validate the implementation and provide feedback.
dartdevc
is not yet ready for production usage. -
Read more about the Dart Dev Compiler here.
-
-
dart:async
- Made
StreamView
class aconst
class.
- Made
-
dart:core
- Added
Uri.queryParametersAll
to handle multiple query parameters with the same name.
- Added
-
dart:io
- Added
SecurityContext.usePrivateKeyBytes
,SecurityContext.useCertificateChainBytes
,SecurityContext.setTrustedCertificatesBytes
, andSecurityContext.setClientAuthoritiesBytes
. - Breaking The named
directory
argument ofSecurityContext.setTrustedCertificates
has been removed. - Added support to
SecurityContext
for PKCS12 certificate and key containers. - All calls in
SecurityContext
that accept certificate data now accept an optional named parameterpassword
, similar toSecurityContext.usePrivateKeyBytes
, for use as the password for PKCS12 data.
- Added
-
Dartium and content shell
- The Chrome-based tools that ship as part of the Dart SDK – Dartium and content shell – are now based on Chrome version 45 (instead of Chrome 39).
- Dart browser libraries (
dart:html
,dart:svg
, etc) have not been updated.- These are still based on Chrome 39.
- These APIs will be updated in a future release.
- Note that there are experimental APIs which have changed in the underlying
browser, and will not work with the older libraries.
For example,
Element.animate
.
-
dartfmt
- upgraded to v0.2.4- Better handling for long collections with comments.
- Always put member metadata annotations on their own line.
- Indent functions in named argument lists with non-functions.
- Force the parameter list to split if a split occurs inside a function-typed parameter.
- Don't force a split for before a single named argument if the argument itself splits.
- Fixed a documentation bug where the field
extensionRPCs
inIsolate
was not marked optional.
-
Added support for configuration-specific imports. On the VM and
dart2js
, they can be enabled with--conditional-directives
.The analyzer requires additional configuration:
analyzer: language: enableConditionalDirectives: true
Read about configuring the analyzer for more details.
Patch release, resolves three issues:
-
VM: Fixed a code generation bug on x64. (SDK commit 834b3f02)
-
dart:io
: Fixed EOF detection when reading some special device files. (SDK issue 25596) -
Pub: Fixed an error using hosted dependencies in SDK version 1.14. (Pub issue 1386)
Patch release, resolves one issue:
- Debugger: Fixes a VM crash when a debugger attempts to set a break point during isolate initialization. (SDK issue 25618)
-
dart:async
- Added
Future.any
static method. - Added
Stream.fromFutures
constructor.
- Added
-
dart:convert
Base64Decoder.convert
now takes optionalstart
andend
parameters.
-
dart:core
- Added
current
getter toStackTrace
class. Uri
class added support for data URIs- Added two new constructors:
dataFromBytes
anddataFromString
. - Added a
data
getter fordata:
URIs with a newUriData
class for the return type.
- Added two new constructors:
- Added
growable
parameter toList.filled
constructor. - Added microsecond support to
DateTime
:DateTime.microsecond
,DateTime.microsecondsSinceEpoch
, andnew DateTime.fromMicrosecondsSinceEpoch
.
- Added
-
dart:math
Random
added asecure
constructor returning a cryptographically secure random generator which reads from the entropy source provided by the embedder for every generated random value.
-
dart:io
Platform
added a staticisIOS
getter andPlatform.operatingSystem
may now returnios
.Platform
added a staticpackageConfig
getter.- Added support for WebSocket compression as standardized in RFC 7692.
- Compression is enabled by default for all WebSocket connections.
- The optionally named parameter
compression
on the methodsWebSocket.connect
,WebSocket.fromUpgradedSocket
, andWebSocketTransformer.upgrade
and theWebSocketTransformer
constructor can be used to modify or disable compression using the newCompressionOptions
class.
- The optionally named parameter
-
dart:isolate
- Added experimental support for Package Resolution Configuration.
- Added
packageConfig
andpackageRoot
instance getters toIsolate
. - Added a
resolvePackageUri
method toIsolate
. - Added named arguments
packageConfig
andautomaticPackageResolution
to theIsolate.spawnUri
constructor.
- Added
- Added experimental support for Package Resolution Configuration.
-
dartfmt
-
Better line splitting in a variety of cases.
-
Other optimizations and bug fixes.
-
-
Pub
-
Breaking: Pub now eagerly emits an error when a pubspec's "name" field is not a valid Dart identifier. Since packages with non-identifier names were never allowed to be published, and some of them already caused crashes when being written to a
.packages
file, this is unlikely to break many people in practice. -
Breaking: Support for
barback
versions prior to 0.15.0 (released July 2014) has been dropped. Pub will no longer install these older barback versions. -
pub serve
now GZIPs the assets it serves to make load times more similar to real-world use-cases. -
pub deps
now supports a--no-dev
flag, which causes it to emit the dependency tree as it would be if nodev_dependencies
were in use. This makes it easier to see your package's dependency footprint as your users will experience it. -
pub global run
now detects when a global executable's SDK constraint is no longer met and errors out, rather than trying to run the executable anyway. -
Pub commands that check whether the lockfile is up-to-date (
pub run
,pub deps
,pub serve
, andpub build
) now do additional verification. They ensure that any path dependencies' pubspecs haven't been changed, and they ensure that the current SDK version is compatible with all dependencies. -
Fixed a crashing bug when using
pub global run
on a global script that didn't exist. -
Fixed a crashing bug when a pubspec contains a dependency without a source declared.
-
Patch release, resolves one issue:
- dart2js: Stack traces are not captured correctly (SDK issue [25235] (dart-lang#25235))
Patch release, resolves three issues:
-
VM type propagation fix: Resolves a potential crash in the Dart VM (SDK commit [dff13be] (https://github.com/dart-lang/sdk/commit/dff13bef8de104d33b04820136da2d80f3c835d7))
-
dart2js crash fix: Resolves a crash in pkg/js and dart2js (SDK issue [24974] (dart-lang#24974))
-
Pub get crash on ARM: Fixes a crash triggered when running 'pub get' on ARM processors such as those on a Raspberry Pi (SDK issue [24855] (dart-lang#24855))
-
dart:async
StreamController
added getters foronListen
,onPause
, andonResume
with the corresponding newtypedef void ControllerCallback()
.StreamController
added a getter foronCancel
with the corresponding newtypedef ControllerCancelCallback()
;StreamTransformer
instances created withfromHandlers
with nohandleError
callback now forward stack traces along with errors to the resulting streams.
-
dart:convert
- Added support for Base-64 encoding and decoding.
- Added new classes
Base64Codec
,Base64Encoder
, andBase64Decoder
. - Added new top-level
const Base64Codec BASE64
.
- Added new classes
- Added support for Base-64 encoding and decoding.
-
dart:core
Uri
addedremoveFragment
method.String.allMatches
(implementingPattern.allMatches
) is now lazy, as allallMatches
implementations are intended to be.Resource
is deprecated, and will be removed in a future release.
-
dart:developer
- Added
Timeline
class for interacting with Observatory's timeline feature. - Added
ServiceExtensionHandler
,ServiceExtensionResponse
, andregisterExtension
which enable developers to provide their own VM service protocol extensions.
- Added
-
dart:html
,dart:indexed_db
,dart:svg
,dart:web_audio
,dart:web_gl
,dart:web_sql
- The return type of some APIs changed from
double
tonum
. Dartium is now using JS interop for most operations. JS does not distinguish between numeric types, and will return a number as an int if it fits in an int. This will mostly cause an error if you assign to something typeddouble
in checked mode. You may need to insert atoDouble()
call or acceptnum
. Examples of APIs that are affected includeElement.getBoundingClientRect
andTextMetrics.width
.
- The return type of some APIs changed from
-
dart:io
-
Breaking: Secure networking has changed, replacing the NSS library with the BoringSSL library.
SecureSocket
,SecureServerSocket
,RawSecureSocket
,RawSecureServerSocket
,HttpClient
, andHttpServer
now all use aSecurityContext
object which contains the certificates and keys used for secure TLS (SSL) networking.This is a breaking change for server applications and for some client applications. Certificates and keys are loaded into the
SecurityContext
from PEM files, instead of from an NSS certificate database. Information about how to change applications that use secure networking is at https://www.dartlang.org/server/tls-ssl.html -
HttpClient
no longer sends URI fragments in the request. This is not allowed by the HTTP protocol. TheHttpServer
still gracefully receives fragments, but discards them before delivering the request. -
To allow connections to be accepted on the same port across different isolates, set the
shared
argument totrue
when creating server socket andHttpServer
instances.- The deprecated
ServerSocketReference
andRawServerSocketReference
classes have been removed. - The corresponding
reference
properties onServerSocket
andRawServerSocket
have been removed.
- The deprecated
-
-
dart:isolate
spawnUri
added anenvironment
named argument.
-
dart2js
and Dartium now support improved Javascript Interoperability via the js package. -
docgen
anddartdocgen
no longer ship in the SDK. Thedocgen
sources have been removed from the repository. -
This is the last release to ship the VM's "legacy debug protocol". We intend to remove the legacy debug protocol in Dart VM 1.14.
-
The VM's Service Protocol has been updated to version 3.0 to take care of a number of issues uncovered by the first few non-observatory clients. This is a potentially breaking change for clients.
-
Dartium has been substantially changed. Rather than using C++ calls into Chromium internals for DOM operations it now uses JS interop. The DOM objects in
dart:html
and related libraries now wrap a JavaScript object and delegate operations to it. This should be mostly transparent to users. However, performance and memory characteristics may be different from previous versions. There may be some changes in which DOM objects are wrapped as Dart objects. For example, if you get a reference to a Window object, even through JS interop, you will always see it as a Dart Window, even when used cross-frame. We expect the change to using JS interop will make it much simpler to update to new Chrome versions.
-
dart:io
- A memory leak in creation of Process objects is fixed.
-
Pub
-
Pub will now respect
.gitignore
when validating a package before it's published. For example, if aLICENSE
file exists but is ignored, that is now an error. -
If the package is in a subdirectory of a Git repository and the entire subdirectory is ignored with
.gitignore
, pub will act as though nothing was ignored instead of uploading an empty package. -
The heuristics for determining when
pub get
needs to be run before various commands have been improved. There should no longer be false positives when non-dependency sections of the pubspec have been modified.
-
- Null-aware operators
??
: if null operator.expr1 ?? expr2
evaluates toexpr1
if notnull
, otherwiseexpr2
.??=
: null-aware assignment.v ??= expr
causesv
to be assignedexpr
only ifv
isnull
.x?.p
: null-aware access.x?.p
evaluates tox.p
ifx
is notnull
, otherwise evaluates tonull
.x?.m()
: null-aware method invocation.x?.m()
invokesm
only ifx
is notnull
.
-
dart:async
StreamController
added setters for theonListen
,onPause
,onResume
andonCancel
callbacks.
-
dart:convert
LineSplitter
added asplit
static method returning anIterable
.
-
dart:core
Uri
class now perform path normalization when a URI is created. This removes most..
and.
sequences from the URI path. Purely relative paths (no scheme or authority) are allowed to retain some leading "dot" segments. Also addedhasAbsolutePath
,hasEmptyPath
, andhasScheme
properties.
-
dart:developer
- New
log
function to transmit logging events to Observatory.
- New
-
dart:html
NodeTreeSanitizer
added theconst trusted
field. It can be used instead of defining aNullTreeSanitizer
class when callingsetInnerHtml
or other methods that create DOM from text. It is also more efficient, skipping the creation of aDocumentFragment
.
-
dart:io
-
dart:isolate
- Added
onError
,onExit
anderrorsAreFatal
parameters toIsolate.spawnUri
.
- Added
-
dart:mirrors
InstanceMirror.delegate
moved up toObjectMirror
.- Fix InstanceMirror.getField optimization when the selector is an operator.
- Fix reflective NoSuchMethodErrors to match their non-reflective counterparts when due to argument mismatches. (VM only)
-
Documentation tools
-
dartdoc
is now the default tool to generate static HTML for API docs. Learn more. -
docgen
anddartdocgen
have been deprecated. Currently plan is to remove them in 1.13.
-
-
Formatter (
dartfmt
)-
Over 50 bugs fixed.
-
Optimized line splitter is much faster and produces better output on complex code.
-
-
Observatory
-
Allocation profiling.
-
New feature to display output from logging.
-
Heap snapshot analysis works for 64-bit VMs.
-
Improved ability to inspect typed data, regex and compiled code.
-
Ability to break on all or uncaught exceptions from Observatory's debugger.
-
Ability to set closure-specific breakpoints.
-
'anext' - step past await/yield.
-
Preserve when a variable has been expanded/unexpanded in the debugger.
-
Keep focus on debugger input box whenever possible.
-
Echo stdout/stderr in the Observatory debugger. Standalone-only so far.
-
Minor fixes to service protocol documentation.
-
-
Pub
-
Breaking: various commands that previously ran
pub get
implicitly no longer do so. Instead, they merely check to make sure the ".packages" file is newer than the pubspec and the lock file, and fail if it's not. -
Added support for
--verbosity=error
and--verbosity=warning
. -
pub serve
now collapses multiple GET requests into a single line of output. For full output, use--verbose
. -
pub deps
has improved formatting for circular dependencies on the entrypoint package. -
pub run
andpub global run
-
Breaking: to match the behavior of the Dart VM, executables no longer run in checked mode by default. A
--checked
flag has been added to run them in checked mode manually. -
Faster start time for executables that don't import transformed code.
-
Binstubs for globally-activated executables are now written in the system encoding, rather than always in
UTF-8
. To update existing executables, runpub cache repair
.
-
-
pub get
andpub upgrade
-
Pub will now generate a ".packages" file in addition to the "packages" directory when running
pub get
or similar operations, per the package spec proposal. Pub now has a--no-package-symlinks
flag that will stop "packages" directories from being generated at all. -
An issue where HTTP requests were sometimes made even though
--offline
was passed has been fixed. -
A bug with
--offline
that caused an unhelpful error message has been fixed. -
Pub will no longer time out when a package takes a long time to download.
-
-
pub publish
-
Pub will emit a non-zero exit code when it finds a violation while publishing.
-
.gitignore
files will be respected even if the package isn't at the top level of the Git repository.
-
-
Barback integration
-
A crashing bug involving transformers that only apply to non-public code has been fixed.
-
A deadlock caused by declaring transformer followed by a lazy transformer (such as the built-in
$dart2js
transformer) has been fixed. -
A stack overflow caused by a transformer being run multiple times on the package that defines it has been fixed.
-
A transformer that tries to read a non-existent asset in another package will now be re-run if that asset is later created.
-
-
-
BREAKING The service protocol now sends JSON-RPC 2.0-compatible server-to-client events. To reflect this, the service protocol version is now 2.0.
-
The service protocol now includes a
"jsonrpc"
property in its responses, as opposed to"json-rpc"
. -
The service protocol now properly handles requests with non-string ids. Numeric ids are no longer converted to strings, and null ids now don't produce a response.
-
Some RPCs that didn't include a
"jsonrpc"
property in their responses now include one.
- Fix a bug where
WebSocket.close()
would crash if called afterWebSocket.cancel()
.
- Pub will always load Dart SDK assets from the SDK whose
pub
executable was run, even if aDART_SDK
environment variable is set.
-
dart:core
Iterable
added anempty
constructor. dcf0286Iterable
can now be extended directly. An alternative to extendingIterableBase
fromdart:collection
.List
added anunmodifiable
constructor. r45334Map
added anunmodifiable
constructor. r45733int
added agcd
method. a192ef4int
added amodInverse
method. f6f338cStackTrace
added afromString
constructor. 68dd6f6Uri
added adirectory
constructor. d8dbb4a- List iterators may not throw
ConcurrentModificationError
as eagerly in release mode. In checked mode, the modification check is still as eager as possible. r45198
-
dart:developer
- NEW- Replaces the deprecated
dart:profiler
library. - Adds new functions
debugger
andinspect
. 6e42aec
- Replaces the deprecated
-
dart:io
-
dart:html
Element
methods,appendHtml
andinsertAdjacentHtml
now takenodeValidator
andtreeSanitizer
parameters, and the inputs are consistently sanitized. r45818 announcement
-
dart:isolate
- BREAKING The positional
priority
parameter ofIsolate.ping
andIsolate.kill
is now a named parameter namedpriority
. - BREAKING Removed the
Isolate.AS_EVENT
priority. Isolate
methodsping
andaddOnExitListener
now have a named parameterresponse
. r45092Isolate.spawnUri
added a named argumentchecked
.- Remove the experimental state of the API.
- BREAKING The positional
-
dart:profiler
- DEPRECATED- This library will be removed in 1.12. Use
dart:developer
instead.
- This library will be removed in 1.12. Use
- This is the first release that does not include the Eclipse-based Dart Editor. See dartlang.org/tools for alternatives.
- This is the last release that ships the (unsupported)
dart2dart (aka
dart2js --output-type=dart
) utility as part of dart2js
-
dart:convert
-
dart:core
Uri.parse
addedstart
andend
positional arguments.
-
dart:html
- POTENTIALLY BREAKING
CssClassSet
method arguments must now be 'tokens', i.e. non-empty strings with no white-space characters. The implementation was incorrect for class names containing spaces. The fix is to forbid spaces and provide a faster implementation. Announcement
- POTENTIALLY BREAKING
-
dart:io
ProcessResult
now exposes a constructor.import
andIsolate.spawnUri
now supports the Data URI scheme on the VM.
-
Running
pub run foo
within a package now runs thefoo
executable defined by thefoo
package. The previous behavior ranbin/foo
. This makes it easy to run binaries in dependencies, for instancepub run test
. -
On Mac and Linux, signals sent to
pub run
and forwarded to the child command.
This is a bug fix release which merges a number of commits from bleeding_edge
.
-
dart2js: Addresses as issue with minified Javascript output with CSP enabled - r44453
-
Editor: Fixes accidental updating of files in the pub cache during rename refactoring - r44677
-
Editor: Fix for issue 23032 regarding skipped breakpoints on Windows - r44824
-
dart:mirrors: Fix
MethodMirror.source
when the method is on the first line in a script - r44957, r44976 -
pub: Fix for issue 23084: Pub can fail to load transformers necessary for local development - r44876
-
Support for
async
,await
,sync*
,async*
,yield
,yield*
, andawait for
. See the the language tour for more details. -
Enum support is fully enabled. See the language tour for more details.
-
The formatter is much more comprehensive and generates much more readable code. See its tool page for more details.
-
The analysis server is integrated into the IntelliJ plugin and the Dart editor. This allows analysis to run out-of-process, so that interaction remains smooth even for large projects.
-
Analysis supports more and better hints, including unused variables and unused private members.
-
There's a new model for shared server sockets with no need for a
Socket
reference. -
A new, much faster regular expression engine.
-
The Isolate API now works across the VM and
dart2js
.
For more information on any of these changes, see the corresponding documentation on the Dart API site.
-
dart:async
:-
Future.wait
added a new named argument,cleanUp
, which is a callback that releases resources allocated by a successfulFuture
. -
The
SynchronousStreamController
class was added as an explicit name for the type returned when thesync
argument is passed tonew StreamController
.
-
-
dart:collection
: Thenew SplayTreeSet.from(Iterable)
constructor was added. -
dart:convert
:Utf8Encoder.convert
andUtf8Decoder.convert
added optionalstart
andend
arguments. -
dart:core
:-
RangeError
added new static helper functions:checkNotNegative
,checkValidIndex
,checkValidRange
, andcheckValueInInterval
. -
int
added themodPow
function. -
String
added thereplaceFirstMapped
andreplaceRange
functions.
-
-
dart:io
:-
Support for locking files to prevent concurrent modification was added. This includes the
File.lock
,File.lockSync
,File.unlock
, andFile.unlockSync
functions as well as theFileLock
class. -
Support for starting detached processes by passing the named
mode
argument (aProcessStartMode
) toProcess.start
. A process can be fully attached, fully detached, or detached except for its standard IO streams. -
HttpServer.bind
andHttpServer.bindSecure
added thev6Only
named argument. If this is true, only IPv6 connections will be accepted. -
HttpServer.bind
,HttpServer.bindSecure
,ServerSocket.bind
,RawServerSocket.bind
,SecureServerSocket.bind
andRawSecureServerSocket.bind
added theshared
named argument. If this is true, multiple servers or sockets in the same Dart process may bind to the same address, and incoming requests will automatically be distributed between them. -
Deprecation: the experimental
ServerSocketReference
andRawServerSocketReference
classes, as well as getters that returned them, are marked as deprecated. Theshared
named argument should be used instead. These will be removed in Dart 1.10. -
Socket.connect
andRawSocket.connect
added thesourceAddress
named argument, which specifies the local address to bind when making a connection. -
The static
Process.killPid
method was added to kill a process with a given PID. -
Stdout
added thenonBlocking
instance property, which returns a non-blockingIOSink
that writes to standard output.
-
-
dart:isolate
:-
The static getter
Isolate.current
was added. -
The
Isolate
methodsaddOnExitListener
,removeOnExitListener
,setErrorsFatal
,addOnErrorListener
, andremoveOnErrorListener
now work on the VM. -
Isolates spawned via
Isolate.spawn
now allow most objects, including top-level and static functions, to be sent between them.
-
-
Code generation for SIMD on ARM and ARM64 is fixed.
-
A possible crash on MIPS with newer GCC toolchains has been prevented.
-
A segfault when using
rethrow
was fixed (issue 21795).
-
Breakpoints can be set in the Editor using file suffixes (issue 21280).
-
IPv6 addresses are properly handled by
HttpClient
indart:io
, fixing a crash in pub (issue 21698). -
Issues with the experimental
async
/await
syntax have been fixed. -
Issues with a set of number operations in the VM have been fixed.
-
ListBase
indart:collection
always returns anIterable
with the correct type argument.
-
dart:collection
:SplayTree
added thetoSet
function. -
dart:convert
: TheJsonUtf8Encoder
class was added. -
dart:core
:-
The
IndexError
class was added for errors caused by an index being outside its expected range. -
The
new RangeError.index
constructor was added. It forwards tonew IndexError
. -
RangeError
added three new properties.invalidProperty
is the value that caused the error, andstart
andend
are the minimum and maximum values that the value is allowed to assume. -
new RangeError.value
andnew RangeError.range
added an optionalmessage
argument. -
The
new String.fromCharCodes
constructor added optionalstart
andend
arguments.
-
-
dart:io
:-
Support was added for the Application-Layer Protocol Negotiation extension to the TLS protocol for both the client and server.
-
SecureSocket.connect
,SecureServerSocket.bind
,RawSecureSocket.connect
,RawSecureSocket.secure
,RawSecureSocket.secureServer
, andRawSecureServerSocket.bind
added asupportedProtocols
named argument for protocol negotiation. -
RawSecureServerSocket
added asupportedProtocols
field. -
RawSecureSocket
andSecureSocket
added aselectedProtocol
field which contains the protocol selected during protocol negotiation.
-
-
pub
now generates binstubs for packages that are globally activated so that they can be put on the user'sPATH
and used as normal executables. See thepub global activate
documentation. -
When using
dart2js
, deferred loading now works with multiple Dart apps on the same page.
-
dart:async
:Zone
,ZoneDelegate
, andZoneSpecification
added theerrorCallback
function, which allows errors that have been programmatically added to aFuture
orStream
to be intercepted. -
dart:io
:-
Breaking change:
HttpClient.close
must be called for all clients or they will keep the Dart process alive until they time out. This fixes the handling of persistent connections. Previously, the client would shut down immediately after a request. -
Breaking change:
HttpServer
no longer compresses all traffic by default. The newautoCompress
property can be set totrue
to re-enable compression.
-
-
dart:isolate
:Isolate.spawnUri
added the optionalpackageRoot
argument, which controls how it resolvespackage:
URIs.