• Big changes! Task definititions are now primarily annotation based; see the readme for more information and an example
• The GrinderContext arg is no longer expected in task functions. Instead, the context variable (and the log and fail functions) are available as global variables. They're injected into the zone running the current task.
• copyFile and copyDirectory and deprecated in favor of a new copy method
• deleteEntity is deprecated in favor of a new delete method
• Renamed runProcess/runProcessAsync/runDartScript to run/runAsync/Dart.run. Process result info (stdout, stderr, exitCode) is now exposed by these methods and some others which call them.
• Added a wrapper class around pub global activate applications - PubApp
• Grinder can now create a simple starter script for a project - run pub run grinder:init

• added defaultInit() and defaultClean() methods, for common tasks
• added methods for Pub.global.activate and Pub.global.run
• added an optional workingDirectory argument to more methods
• added a --version command line flag
• have the version command check to see if there's a newer version of grinder available
• the dart2js compile tasks now create the output directory if it doesn't exist

• clarify that users should put their build scripts in tools/grind.dart
• add a getSdkDir method

• widen the version constraint on quiver

• widen the version constraint on args

The convenience API is now more terse:

• the defineTask() method has been renamed to task()
• instead of named parameters, the task() function now uses optional positional parameters

Added two new entrypoint files in bin/: grind.dart and grinder.dart. These let you run grinder via:

pub run grinder test

They look for a corresponding grinder script in the tool directory (bin/grind.dart looks for tool/grind.dart and bin/grinder.dart looks for tool/grinder.dart). If they find a corresponding script they run it in a new Dart VM process. This means that projects will no longer have to have a grind.sh script in the root of each project.

PubTool's build methods now take an optional workingDirectory argument.

Removed runSdkBinary and runSdkBinaryAsync, and they are no longer needed. Use runProcess and runProcessAsync instead.

The methods on PubTools and Dart2jsTools are now static - you no longer need to create an instance to use them. Also, PubTools was renamed to Pub and Dart2jsTools was renamed to Dart2js. And a new utility class for dartanalyzer - Analyzer - was created.

• added runProcessAsync() and related async methods (such as PubTools.buildAsync(...))
• removed duplicated stack traces when the build fails with exceptions
• throw an exception when running SDK binaries, and we are not able to locate the Dart SDK