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RELEASE-NOTES.txt
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ScalaSTM - RELEASE NOTES
Changes between 0.1!.0 and 0.10.0:
* add preliminary Scala.js support (largely untested!)
Changes between 0.10.0 and 0.9:
* add Dotty support
* fix potential issue in RetrySet
Changes between 0.8 and 0.9:
* add Scala 2.13 support
(includes using new Collections API,
changing all occurrences of deprecated ClassManifest for ClassTag)
* disable "multi-barrier deadlock cycle" test (uses CommitBarrier)
* fix initialisation bug in RetrySetBuilder (InitialCap was zero)
Changes between 0.7 and 0.8:
* correctness fix for TArray[Long] and AtomicArray.ofLong.
* small improvement to TxnLocal interface.
* add 2.12 build and remove 2.10 build.
* add deprecated message about incomplete deadlock detection for
CommitBarrier.
Snapshot releases deployed to the oss.sonatype.org repository are tested
and functional, but may have changing APIs.
----
Changes between 0.6 and 0.7:
* better support for interactive debuggers, via TxnDebuggable and
atomic.unrecorded. IntelliJ IDEA and Eclipse can now watch Ref
values inside a transaction without affecting the read or write sets.
* ScalaSTM cooperates with 2.10's scala.concurrent.BlockingContext.
* added transformAndExtract, which allows an arbitrary value to be
returned from the transformation function.
* added transformAndGet and getAndTransform to Ref and TxnLocal,
previously these were only defined for Ref.View.
----
Changes between 0.5 and 0.6:
* retry and retryFor added to the Java compatibility interface.
* uses of scala.actor.threadpool.TimeUnit in the interface replaced with
java.util.concurrent.TimeUnit, to avoid making ScalaSTM depend on the
separate scala-actors jar in Scala 2.10.
----
Changes between 0.4 and 0.5:
* Added scala.concurrent.stm.japi.STM, which makes it much cleaner to
access ScalaSTM functionality from Java.
----
Changes between 0.3 and 0.4:
* CommitBarrier added, which allows multiple atomic blocks (each on its
own thread) to commit together.
* Small performance improvements.
* STMBench7 benchmark support added.
* Automatic selection of STMImpl in most cases.
----
Changes between 0.2 and 0.3:
* Support for Scala 2.9.0.RC1.
* Bug fixes (see https://github.com/nbronson/scala-stm/issues/closed ).
* Timeouts for modular blocking. Set timeouts at the atomic block using
atomic.withRetryTimeout, or at the retry site using retryFor.
----
Changes between 0.1 and 0.2:
* Substantial performance improvements, especially for nested atomic
blocks.
* TSet.View and TMap.View are integrated into the Scala collection
class hierarchy, with factory companion objects and Builder and
CanBuildFrom instances.
* A fix for whileCommitting handlers (issue #3).
* TxnLocal can now be read and written from while-preparing and while-
committing handlers. Combining TxnLocal and life-cycle handlers is
now more concise.
* Transaction statistics can be enabled for the default algorithm
with the VM argument -Dccstm.stats=1 (details in the ScalaDoc for
scala.concurrent.stm.ccstm.CCSTM).