diff --git a/buildSrc/src/main/kotlin/androidx/build/LibraryVersions.kt b/buildSrc/src/main/kotlin/androidx/build/LibraryVersions.kt
index 98a0f10..047cb33 100644
--- a/buildSrc/src/main/kotlin/androidx/build/LibraryVersions.kt
+++ b/buildSrc/src/main/kotlin/androidx/build/LibraryVersions.kt
@@ -109,5 +109,5 @@
     val VIEWPAGER2 = Version("1.0.0-beta01")
     val WEAR = Version("1.1.0-alpha01")
     val WEBKIT = Version("1.1.0-alpha02")
-    val WORK = Version("2.2.0-beta01")
+    val WORK = Version("2.3.0-alpha01")
 }
diff --git a/work/workmanager-gcm/api/2.3.0-alpha01.txt b/work/workmanager-gcm/api/2.3.0-alpha01.txt
new file mode 100644
index 0000000..da4f6cc
--- /dev/null
+++ b/work/workmanager-gcm/api/2.3.0-alpha01.txt
@@ -0,0 +1 @@
+// Signature format: 3.0
diff --git a/work/workmanager-gcm/api/res-2.3.0-alpha01.txt b/work/workmanager-gcm/api/res-2.3.0-alpha01.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/work/workmanager-gcm/api/res-2.3.0-alpha01.txt
diff --git a/work/workmanager-gcm/api/restricted_2.3.0-alpha01.txt b/work/workmanager-gcm/api/restricted_2.3.0-alpha01.txt
new file mode 100644
index 0000000..da4f6cc
--- /dev/null
+++ b/work/workmanager-gcm/api/restricted_2.3.0-alpha01.txt
@@ -0,0 +1 @@
+// Signature format: 3.0
diff --git a/work/workmanager-ktx/api/2.3.0-alpha01.txt b/work/workmanager-ktx/api/2.3.0-alpha01.txt
new file mode 100644
index 0000000..4ed72f8
--- /dev/null
+++ b/work/workmanager-ktx/api/2.3.0-alpha01.txt
@@ -0,0 +1,42 @@
+// Signature format: 3.0
+package androidx.work {
+
+  public abstract class CoroutineWorker extends androidx.work.ListenableWorker {
+    ctor public CoroutineWorker(android.content.Context appContext, androidx.work.WorkerParameters params);
+    method public abstract suspend Object doWork(kotlin.coroutines.Continuation<? super androidx.work.ListenableWorker.Result> p);
+    method @Deprecated public kotlinx.coroutines.CoroutineDispatcher getCoroutineContext();
+    method public final void onStopped();
+    method public final com.google.common.util.concurrent.ListenableFuture<androidx.work.ListenableWorker.Result> startWork();
+    property @Deprecated public kotlinx.coroutines.CoroutineDispatcher coroutineContext;
+  }
+
+  public final class DataKt {
+    ctor public DataKt();
+    method public static inline androidx.work.Data workDataOf(kotlin.Pair<java.lang.String,?>... pairs);
+  }
+
+  public final class ListenableFutureKt {
+    ctor public ListenableFutureKt();
+  }
+
+  public final class OneTimeWorkRequestKt {
+    ctor public OneTimeWorkRequestKt();
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.OneTimeWorkRequest.Builder OneTimeWorkRequestBuilder();
+    method public static inline androidx.work.OneTimeWorkRequest.Builder setInputMerger(androidx.work.OneTimeWorkRequest.Builder, kotlin.reflect.KClass<? extends androidx.work.InputMerger> inputMerger);
+  }
+
+  public final class OperationKt {
+    ctor public OperationKt();
+    method public static suspend inline Object! await(androidx.work.Operation, kotlin.coroutines.Continuation<? super androidx.work.Operation.State.SUCCESS> p);
+  }
+
+  public final class PeriodicWorkRequestKt {
+    ctor public PeriodicWorkRequestKt();
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(long repeatInterval, java.util.concurrent.TimeUnit repeatIntervalTimeUnit);
+    method @RequiresApi(26) public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(java.time.Duration repeatInterval);
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(long repeatInterval, java.util.concurrent.TimeUnit repeatIntervalTimeUnit, long flexTimeInterval, java.util.concurrent.TimeUnit flexTimeIntervalUnit);
+    method @RequiresApi(26) public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(java.time.Duration repeatInterval, java.time.Duration flexTimeInterval);
+  }
+
+}
+
diff --git a/work/workmanager-ktx/api/res-2.3.0-alpha01.txt b/work/workmanager-ktx/api/res-2.3.0-alpha01.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/work/workmanager-ktx/api/res-2.3.0-alpha01.txt
diff --git a/work/workmanager-ktx/api/restricted_2.3.0-alpha01.txt b/work/workmanager-ktx/api/restricted_2.3.0-alpha01.txt
new file mode 100644
index 0000000..2a2fd52
--- /dev/null
+++ b/work/workmanager-ktx/api/restricted_2.3.0-alpha01.txt
@@ -0,0 +1,48 @@
+// Signature format: 3.0
+package androidx.work {
+
+  public abstract class CoroutineWorker extends androidx.work.ListenableWorker {
+    ctor public CoroutineWorker(android.content.Context appContext, androidx.work.WorkerParameters params);
+    method public abstract suspend Object doWork(kotlin.coroutines.Continuation<? super androidx.work.ListenableWorker.Result> p);
+    method @Deprecated public kotlinx.coroutines.CoroutineDispatcher getCoroutineContext();
+    method public final void onStopped();
+    method public final com.google.common.util.concurrent.ListenableFuture<androidx.work.ListenableWorker.Result> startWork();
+    property @Deprecated public kotlinx.coroutines.CoroutineDispatcher coroutineContext;
+  }
+
+  public final class DataKt {
+    ctor public DataKt();
+    method public static inline androidx.work.Data workDataOf(kotlin.Pair<java.lang.String,?>... pairs);
+  }
+
+  @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP) public enum DirectExecutor implements java.util.concurrent.Executor {
+    method public void execute(Runnable command);
+    enum_constant public static final androidx.work.DirectExecutor INSTANCE;
+  }
+
+  public final class ListenableFutureKt {
+    ctor public ListenableFutureKt();
+    method @RestrictTo(androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP) public static suspend inline <R> Object! await(com.google.common.util.concurrent.ListenableFuture<R>, kotlin.coroutines.Continuation<? super R> p);
+  }
+
+  public final class OneTimeWorkRequestKt {
+    ctor public OneTimeWorkRequestKt();
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.OneTimeWorkRequest.Builder OneTimeWorkRequestBuilder();
+    method public static inline androidx.work.OneTimeWorkRequest.Builder setInputMerger(androidx.work.OneTimeWorkRequest.Builder, kotlin.reflect.KClass<? extends androidx.work.InputMerger> inputMerger);
+  }
+
+  public final class OperationKt {
+    ctor public OperationKt();
+    method public static suspend inline Object! await(androidx.work.Operation, kotlin.coroutines.Continuation<? super androidx.work.Operation.State.SUCCESS> p);
+  }
+
+  public final class PeriodicWorkRequestKt {
+    ctor public PeriodicWorkRequestKt();
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(long repeatInterval, java.util.concurrent.TimeUnit repeatIntervalTimeUnit);
+    method @RequiresApi(26) public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(java.time.Duration repeatInterval);
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(long repeatInterval, java.util.concurrent.TimeUnit repeatIntervalTimeUnit, long flexTimeInterval, java.util.concurrent.TimeUnit flexTimeIntervalUnit);
+    method @RequiresApi(26) public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.PeriodicWorkRequest.Builder PeriodicWorkRequestBuilder(java.time.Duration repeatInterval, java.time.Duration flexTimeInterval);
+  }
+
+}
+
diff --git a/work/workmanager-rxjava2/api/2.3.0-alpha01.txt b/work/workmanager-rxjava2/api/2.3.0-alpha01.txt
new file mode 100644
index 0000000..e43f0e5
--- /dev/null
+++ b/work/workmanager-rxjava2/api/2.3.0-alpha01.txt
@@ -0,0 +1,12 @@
+// Signature format: 3.0
+package androidx.work {
+
+  public abstract class RxWorker extends androidx.work.ListenableWorker {
+    ctor public RxWorker(android.content.Context, androidx.work.WorkerParameters);
+    method @MainThread public abstract io.reactivex.Single<androidx.work.ListenableWorker.Result!> createWork();
+    method protected io.reactivex.Scheduler getBackgroundScheduler();
+    method public com.google.common.util.concurrent.ListenableFuture<androidx.work.ListenableWorker.Result!> startWork();
+  }
+
+}
+
diff --git a/work/workmanager-rxjava2/api/res-2.3.0-alpha01.txt b/work/workmanager-rxjava2/api/res-2.3.0-alpha01.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/work/workmanager-rxjava2/api/res-2.3.0-alpha01.txt
diff --git a/work/workmanager-rxjava2/api/restricted_2.3.0-alpha01.txt b/work/workmanager-rxjava2/api/restricted_2.3.0-alpha01.txt
new file mode 100644
index 0000000..e43f0e5
--- /dev/null
+++ b/work/workmanager-rxjava2/api/restricted_2.3.0-alpha01.txt
@@ -0,0 +1,12 @@
+// Signature format: 3.0
+package androidx.work {
+
+  public abstract class RxWorker extends androidx.work.ListenableWorker {
+    ctor public RxWorker(android.content.Context, androidx.work.WorkerParameters);
+    method @MainThread public abstract io.reactivex.Single<androidx.work.ListenableWorker.Result!> createWork();
+    method protected io.reactivex.Scheduler getBackgroundScheduler();
+    method public com.google.common.util.concurrent.ListenableFuture<androidx.work.ListenableWorker.Result!> startWork();
+  }
+
+}
+
diff --git a/work/workmanager-testing/api/2.3.0-alpha01.txt b/work/workmanager-testing/api/2.3.0-alpha01.txt
new file mode 100644
index 0000000..8827453
--- /dev/null
+++ b/work/workmanager-testing/api/2.3.0-alpha01.txt
@@ -0,0 +1,52 @@
+// Signature format: 3.0
+package androidx.work.testing {
+
+  public class SynchronousExecutor implements java.util.concurrent.Executor {
+    ctor public SynchronousExecutor();
+    method public void execute(Runnable);
+  }
+
+  public interface TestDriver {
+    method public void setAllConstraintsMet(java.util.UUID);
+    method public void setInitialDelayMet(java.util.UUID);
+    method public void setPeriodDelayMet(java.util.UUID);
+  }
+
+  public class TestListenableWorkerBuilder<W extends androidx.work.ListenableWorker> {
+    method public W build();
+    method public static androidx.work.testing.TestListenableWorkerBuilder from(android.content.Context, androidx.work.WorkRequest);
+    method public static <W extends androidx.work.ListenableWorker> androidx.work.testing.TestListenableWorkerBuilder<W!> from(android.content.Context, Class<W!>);
+    method public androidx.work.testing.TestListenableWorkerBuilder setId(java.util.UUID);
+    method public androidx.work.testing.TestListenableWorkerBuilder setInputData(androidx.work.Data);
+    method @RequiresApi(28) public androidx.work.testing.TestListenableWorkerBuilder setNetwork(android.net.Network);
+    method public androidx.work.testing.TestListenableWorkerBuilder setRunAttemptCount(int);
+    method public androidx.work.testing.TestListenableWorkerBuilder setTags(java.util.List<java.lang.String!>);
+    method @RequiresApi(24) public androidx.work.testing.TestListenableWorkerBuilder setTriggeredContentAuthorities(java.util.List<java.lang.String!>);
+    method @RequiresApi(24) public androidx.work.testing.TestListenableWorkerBuilder setTriggeredContentUris(java.util.List<android.net.Uri!>);
+    method public androidx.work.testing.TestListenableWorkerBuilder setWorkerFactory(androidx.work.WorkerFactory);
+  }
+
+  public final class TestListenableWorkerBuilderKt {
+    ctor public TestListenableWorkerBuilderKt();
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.testing.TestListenableWorkerBuilder<W> TestListenableWorkerBuilder(android.content.Context context, androidx.work.Data inputData = androidx.work.Data.EMPTY, java.util.List<java.lang.String> tags = emptyList(), int runAttemptCount = 1, java.util.List<? extends android.net.Uri> triggeredContentUris = emptyList(), java.util.List<java.lang.String> triggeredContentAuthorities = emptyList());
+  }
+
+  public class TestWorkerBuilder<W extends androidx.work.Worker> extends androidx.work.testing.TestListenableWorkerBuilder<W> {
+    method public static androidx.work.testing.TestWorkerBuilder<? extends androidx.work.Worker> from(android.content.Context, androidx.work.WorkRequest, java.util.concurrent.Executor);
+    method public static <W extends androidx.work.Worker> androidx.work.testing.TestWorkerBuilder<W!> from(android.content.Context, Class<W!>, java.util.concurrent.Executor);
+  }
+
+  public final class TestWorkerBuilderKt {
+    ctor public TestWorkerBuilderKt();
+    method public static inline <reified W extends androidx.work.Worker> androidx.work.testing.TestWorkerBuilder<W> TestWorkerBuilder(android.content.Context context, java.util.concurrent.Executor executor, androidx.work.Data inputData = androidx.work.Data.EMPTY, java.util.List<java.lang.String> tags = emptyList(), int runAttemptCount = 1, java.util.List<? extends android.net.Uri> triggeredContentUris = emptyList(), java.util.List<java.lang.String> triggeredContentAuthorities = emptyList());
+  }
+
+  public final class WorkManagerTestInitHelper {
+    method @Deprecated public static androidx.work.testing.TestDriver? getTestDriver();
+    method public static androidx.work.testing.TestDriver? getTestDriver(android.content.Context);
+    method public static void initializeTestWorkManager(android.content.Context);
+    method public static void initializeTestWorkManager(android.content.Context, androidx.work.Configuration);
+  }
+
+}
+
diff --git a/work/workmanager-testing/api/res-2.3.0-alpha01.txt b/work/workmanager-testing/api/res-2.3.0-alpha01.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/work/workmanager-testing/api/res-2.3.0-alpha01.txt
diff --git a/work/workmanager-testing/api/restricted_2.3.0-alpha01.txt b/work/workmanager-testing/api/restricted_2.3.0-alpha01.txt
new file mode 100644
index 0000000..8827453
--- /dev/null
+++ b/work/workmanager-testing/api/restricted_2.3.0-alpha01.txt
@@ -0,0 +1,52 @@
+// Signature format: 3.0
+package androidx.work.testing {
+
+  public class SynchronousExecutor implements java.util.concurrent.Executor {
+    ctor public SynchronousExecutor();
+    method public void execute(Runnable);
+  }
+
+  public interface TestDriver {
+    method public void setAllConstraintsMet(java.util.UUID);
+    method public void setInitialDelayMet(java.util.UUID);
+    method public void setPeriodDelayMet(java.util.UUID);
+  }
+
+  public class TestListenableWorkerBuilder<W extends androidx.work.ListenableWorker> {
+    method public W build();
+    method public static androidx.work.testing.TestListenableWorkerBuilder from(android.content.Context, androidx.work.WorkRequest);
+    method public static <W extends androidx.work.ListenableWorker> androidx.work.testing.TestListenableWorkerBuilder<W!> from(android.content.Context, Class<W!>);
+    method public androidx.work.testing.TestListenableWorkerBuilder setId(java.util.UUID);
+    method public androidx.work.testing.TestListenableWorkerBuilder setInputData(androidx.work.Data);
+    method @RequiresApi(28) public androidx.work.testing.TestListenableWorkerBuilder setNetwork(android.net.Network);
+    method public androidx.work.testing.TestListenableWorkerBuilder setRunAttemptCount(int);
+    method public androidx.work.testing.TestListenableWorkerBuilder setTags(java.util.List<java.lang.String!>);
+    method @RequiresApi(24) public androidx.work.testing.TestListenableWorkerBuilder setTriggeredContentAuthorities(java.util.List<java.lang.String!>);
+    method @RequiresApi(24) public androidx.work.testing.TestListenableWorkerBuilder setTriggeredContentUris(java.util.List<android.net.Uri!>);
+    method public androidx.work.testing.TestListenableWorkerBuilder setWorkerFactory(androidx.work.WorkerFactory);
+  }
+
+  public final class TestListenableWorkerBuilderKt {
+    ctor public TestListenableWorkerBuilderKt();
+    method public static inline <reified W extends androidx.work.ListenableWorker> androidx.work.testing.TestListenableWorkerBuilder<W> TestListenableWorkerBuilder(android.content.Context context, androidx.work.Data inputData = androidx.work.Data.EMPTY, java.util.List<java.lang.String> tags = emptyList(), int runAttemptCount = 1, java.util.List<? extends android.net.Uri> triggeredContentUris = emptyList(), java.util.List<java.lang.String> triggeredContentAuthorities = emptyList());
+  }
+
+  public class TestWorkerBuilder<W extends androidx.work.Worker> extends androidx.work.testing.TestListenableWorkerBuilder<W> {
+    method public static androidx.work.testing.TestWorkerBuilder<? extends androidx.work.Worker> from(android.content.Context, androidx.work.WorkRequest, java.util.concurrent.Executor);
+    method public static <W extends androidx.work.Worker> androidx.work.testing.TestWorkerBuilder<W!> from(android.content.Context, Class<W!>, java.util.concurrent.Executor);
+  }
+
+  public final class TestWorkerBuilderKt {
+    ctor public TestWorkerBuilderKt();
+    method public static inline <reified W extends androidx.work.Worker> androidx.work.testing.TestWorkerBuilder<W> TestWorkerBuilder(android.content.Context context, java.util.concurrent.Executor executor, androidx.work.Data inputData = androidx.work.Data.EMPTY, java.util.List<java.lang.String> tags = emptyList(), int runAttemptCount = 1, java.util.List<? extends android.net.Uri> triggeredContentUris = emptyList(), java.util.List<java.lang.String> triggeredContentAuthorities = emptyList());
+  }
+
+  public final class WorkManagerTestInitHelper {
+    method @Deprecated public static androidx.work.testing.TestDriver? getTestDriver();
+    method public static androidx.work.testing.TestDriver? getTestDriver(android.content.Context);
+    method public static void initializeTestWorkManager(android.content.Context);
+    method public static void initializeTestWorkManager(android.content.Context, androidx.work.Configuration);
+  }
+
+}
+
diff --git a/work/workmanager/api/2.3.0-alpha01.txt b/work/workmanager/api/2.3.0-alpha01.txt
new file mode 100644
index 0000000..f0bff1a
--- /dev/null
+++ b/work/workmanager/api/2.3.0-alpha01.txt
@@ -0,0 +1,302 @@
+// Signature format: 3.0
+package androidx.work {
+
+  public final class ArrayCreatingInputMerger extends androidx.work.InputMerger {
+    ctor public ArrayCreatingInputMerger();
+    method public androidx.work.Data merge(java.util.List<androidx.work.Data!>);
+  }
+
+  public enum BackoffPolicy {
+    enum_constant public static final androidx.work.BackoffPolicy EXPONENTIAL;
+    enum_constant public static final androidx.work.BackoffPolicy LINEAR;
+  }
+
+  public final class Configuration {
+    method public java.util.concurrent.Executor getExecutor();
+    method public int getMaxJobSchedulerId();
+    method public int getMinJobSchedulerId();
+    method public java.util.concurrent.Executor getTaskExecutor();
+    method public androidx.work.WorkerFactory getWorkerFactory();
+    field public static final int MIN_SCHEDULER_LIMIT = 20; // 0x14
+  }
+
+  public static final class Configuration.Builder {
+    ctor public Configuration.Builder();
+    method public androidx.work.Configuration build();
+    method public androidx.work.Configuration.Builder setExecutor(java.util.concurrent.Executor);
+    method public androidx.work.Configuration.Builder setJobSchedulerJobIdRange(int, int);
+    method public androidx.work.Configuration.Builder setMaxSchedulerLimit(int);
+    method public androidx.work.Configuration.Builder setMinimumLoggingLevel(int);
+    method public androidx.work.Configuration.Builder setTaskExecutor(java.util.concurrent.Executor);
+    method public androidx.work.Configuration.Builder setWorkerFactory(androidx.work.WorkerFactory);
+  }
+
+  public static interface Configuration.Provider {
+    method public androidx.work.Configuration getWorkManagerConfiguration();
+  }
+
+  public final class Constraints {
+    ctor public Constraints(androidx.work.Constraints);
+    method public androidx.work.NetworkType getRequiredNetworkType();
+    method public boolean requiresBatteryNotLow();
+    method public boolean requiresCharging();
+    method @RequiresApi(23) public boolean requiresDeviceIdle();
+    method public boolean requiresStorageNotLow();
+    field public static final androidx.work.Constraints! NONE;
+  }
+
+  public static final class Constraints.Builder {
+    ctor public Constraints.Builder();
+    method @RequiresApi(24) public androidx.work.Constraints.Builder addContentUriTrigger(android.net.Uri, boolean);
+    method public androidx.work.Constraints build();
+    method public androidx.work.Constraints.Builder setRequiredNetworkType(androidx.work.NetworkType);
+    method public androidx.work.Constraints.Builder setRequiresBatteryNotLow(boolean);
+    method public androidx.work.Constraints.Builder setRequiresCharging(boolean);
+    method @RequiresApi(23) public androidx.work.Constraints.Builder setRequiresDeviceIdle(boolean);
+    method public androidx.work.Constraints.Builder setRequiresStorageNotLow(boolean);
+    method @RequiresApi(24) public androidx.work.Constraints.Builder setTriggerContentMaxDelay(long, java.util.concurrent.TimeUnit);
+    method @RequiresApi(26) public androidx.work.Constraints.Builder setTriggerContentMaxDelay(java.time.Duration!);
+    method @RequiresApi(24) public androidx.work.Constraints.Builder setTriggerContentUpdateDelay(long, java.util.concurrent.TimeUnit);
+    method @RequiresApi(26) public androidx.work.Constraints.Builder setTriggerContentUpdateDelay(java.time.Duration!);
+  }
+
+  public final class Data {
+    ctor public Data(androidx.work.Data);
+    method public boolean getBoolean(String, boolean);
+    method public boolean[]? getBooleanArray(String);
+    method public byte getByte(String, byte);
+    method public byte[]? getByteArray(String);
+    method public double getDouble(String, double);
+    method public double[]? getDoubleArray(String);
+    method public float getFloat(String, float);
+    method public float[]? getFloatArray(String);
+    method public int getInt(String, int);
+    method public int[]? getIntArray(String);
+    method public java.util.Map<java.lang.String!,java.lang.Object!> getKeyValueMap();
+    method public long getLong(String, long);
+    method public long[]? getLongArray(String);
+    method public String? getString(String);
+    method public String![]? getStringArray(String);
+    field public static final androidx.work.Data! EMPTY;
+    field public static final int MAX_DATA_BYTES = 10240; // 0x2800
+  }
+
+  public static final class Data.Builder {
+    ctor public Data.Builder();
+    method public androidx.work.Data build();
+    method public androidx.work.Data.Builder putAll(androidx.work.Data);
+    method public androidx.work.Data.Builder putAll(java.util.Map<java.lang.String!,java.lang.Object!>);
+    method public androidx.work.Data.Builder putBoolean(String, boolean);
+    method public androidx.work.Data.Builder putBooleanArray(String, boolean[]);
+    method public androidx.work.Data.Builder putByte(String, byte);
+    method public androidx.work.Data.Builder putByteArray(String, byte[]);
+    method public androidx.work.Data.Builder putDouble(String, double);
+    method public androidx.work.Data.Builder putDoubleArray(String, double[]);
+    method public androidx.work.Data.Builder putFloat(String, float);
+    method public androidx.work.Data.Builder putFloatArray(String, float[]);
+    method public androidx.work.Data.Builder putInt(String, int);
+    method public androidx.work.Data.Builder putIntArray(String, int[]);
+    method public androidx.work.Data.Builder putLong(String, long);
+    method public androidx.work.Data.Builder putLongArray(String, long[]);
+    method public androidx.work.Data.Builder putString(String, String?);
+    method public androidx.work.Data.Builder putStringArray(String, String![]);
+  }
+
+  public class DelegatingWorkerFactory extends androidx.work.WorkerFactory {
+    ctor public DelegatingWorkerFactory();
+    method public final void addFactory(androidx.work.WorkerFactory);
+    method public final androidx.work.ListenableWorker? createWorker(android.content.Context, String, androidx.work.WorkerParameters);
+  }
+
+  public enum ExistingPeriodicWorkPolicy {
+    enum_constant public static final androidx.work.ExistingPeriodicWorkPolicy KEEP;
+    enum_constant public static final androidx.work.ExistingPeriodicWorkPolicy REPLACE;
+  }
+
+  public enum ExistingWorkPolicy {
+    enum_constant public static final androidx.work.ExistingWorkPolicy APPEND;
+    enum_constant public static final androidx.work.ExistingWorkPolicy KEEP;
+    enum_constant public static final androidx.work.ExistingWorkPolicy REPLACE;
+  }
+
+  public abstract class InputMerger {
+    ctor public InputMerger();
+    method public abstract androidx.work.Data merge(java.util.List<androidx.work.Data!>);
+  }
+
+  public abstract class ListenableWorker {
+    ctor @Keep public ListenableWorker(android.content.Context, androidx.work.WorkerParameters);
+    method public final android.content.Context getApplicationContext();
+    method public final java.util.UUID getId();
+    method public final androidx.work.Data getInputData();
+    method @RequiresApi(28) public final android.net.Network? getNetwork();
+    method @IntRange(from=0) public final int getRunAttemptCount();
+    method public final java.util.Set<java.lang.String!> getTags();
+    method @RequiresApi(24) public final java.util.List<java.lang.String!> getTriggeredContentAuthorities();
+    method @RequiresApi(24) public final java.util.List<android.net.Uri!> getTriggeredContentUris();
+    method public final boolean isStopped();
+    method public void onStopped();
+    method @MainThread public abstract com.google.common.util.concurrent.ListenableFuture<androidx.work.ListenableWorker.Result!> startWork();
+  }
+
+  public abstract static class ListenableWorker.Result {
+    method public static androidx.work.ListenableWorker.Result failure();
+    method public static androidx.work.ListenableWorker.Result failure(androidx.work.Data);
+    method public static androidx.work.ListenableWorker.Result retry();
+    method public static androidx.work.ListenableWorker.Result success();
+    method public static androidx.work.ListenableWorker.Result success(androidx.work.Data);
+  }
+
+  public enum NetworkType {
+    enum_constant public static final androidx.work.NetworkType CONNECTED;
+    enum_constant public static final androidx.work.NetworkType METERED;
+    enum_constant public static final androidx.work.NetworkType NOT_REQUIRED;
+    enum_constant public static final androidx.work.NetworkType NOT_ROAMING;
+    enum_constant public static final androidx.work.NetworkType UNMETERED;
+  }
+
+  public final class OneTimeWorkRequest extends androidx.work.WorkRequest {
+    method public static androidx.work.OneTimeWorkRequest from(Class<? extends androidx.work.ListenableWorker>);
+    method public static java.util.List<androidx.work.OneTimeWorkRequest!> from(java.util.List<java.lang.Class<? extends androidx.work.ListenableWorker>!>);
+  }
+
+  public static final class OneTimeWorkRequest.Builder extends androidx.work.WorkRequest.Builder<androidx.work.OneTimeWorkRequest.Builder,androidx.work.OneTimeWorkRequest> {
+    ctor public OneTimeWorkRequest.Builder(Class<? extends androidx.work.ListenableWorker>);
+    method public androidx.work.OneTimeWorkRequest.Builder setInputMerger(Class<? extends androidx.work.InputMerger>);
+  }
+
+  public interface Operation {
+    method public com.google.common.util.concurrent.ListenableFuture<androidx.work.Operation.State.SUCCESS!> getResult();
+    method public androidx.lifecycle.LiveData<androidx.work.Operation.State!> getState();
+  }
+
+  public abstract static class Operation.State {
+  }
+
+  public static final class Operation.State.FAILURE extends androidx.work.Operation.State {
+    ctor public Operation.State.FAILURE(Throwable);
+    method public Throwable getThrowable();
+  }
+
+  public static final class Operation.State.IN_PROGRESS extends androidx.work.Operation.State {
+  }
+
+  public static final class Operation.State.SUCCESS extends androidx.work.Operation.State {
+  }
+
+  public final class OverwritingInputMerger extends androidx.work.InputMerger {
+    ctor public OverwritingInputMerger();
+    method public androidx.work.Data merge(java.util.List<androidx.work.Data!>);
+  }
+
+  public final class PeriodicWorkRequest extends androidx.work.WorkRequest {
+    field public static final long MIN_PERIODIC_FLEX_MILLIS = 300000L; // 0x493e0L
+    field public static final long MIN_PERIODIC_INTERVAL_MILLIS = 900000L; // 0xdbba0L
+  }
+
+  public static final class PeriodicWorkRequest.Builder extends androidx.work.WorkRequest.Builder<androidx.work.PeriodicWorkRequest.Builder,androidx.work.PeriodicWorkRequest> {
+    ctor public PeriodicWorkRequest.Builder(Class<? extends androidx.work.ListenableWorker>, long, java.util.concurrent.TimeUnit);
+    ctor @RequiresApi(26) public PeriodicWorkRequest.Builder(Class<? extends androidx.work.ListenableWorker>, java.time.Duration);
+    ctor public PeriodicWorkRequest.Builder(Class<? extends androidx.work.ListenableWorker>, long, java.util.concurrent.TimeUnit, long, java.util.concurrent.TimeUnit);
+    ctor @RequiresApi(26) public PeriodicWorkRequest.Builder(Class<? extends androidx.work.ListenableWorker>, java.time.Duration, java.time.Duration);
+  }
+
+  public abstract class WorkContinuation {
+    ctor public WorkContinuation();
+    method public static androidx.work.WorkContinuation combine(java.util.List<androidx.work.WorkContinuation!>);
+    method public abstract androidx.work.Operation enqueue();
+    method public abstract com.google.common.util.concurrent.ListenableFuture<java.util.List<androidx.work.WorkInfo!>!> getWorkInfos();
+    method public abstract androidx.lifecycle.LiveData<java.util.List<androidx.work.WorkInfo!>!> getWorkInfosLiveData();
+    method public final androidx.work.WorkContinuation then(androidx.work.OneTimeWorkRequest);
+    method public abstract androidx.work.WorkContinuation then(java.util.List<androidx.work.OneTimeWorkRequest!>);
+  }
+
+  public final class WorkInfo {
+    method public java.util.UUID getId();
+    method public androidx.work.Data getOutputData();
+    method @IntRange(from=0) public int getRunAttemptCount();
+    method public androidx.work.WorkInfo.State getState();
+    method public java.util.Set<java.lang.String!> getTags();
+  }
+
+  public enum WorkInfo.State {
+    method public boolean isFinished();
+    enum_constant public static final androidx.work.WorkInfo.State BLOCKED;
+    enum_constant public static final androidx.work.WorkInfo.State CANCELLED;
+    enum_constant public static final androidx.work.WorkInfo.State ENQUEUED;
+    enum_constant public static final androidx.work.WorkInfo.State FAILED;
+    enum_constant public static final androidx.work.WorkInfo.State RUNNING;
+    enum_constant public static final androidx.work.WorkInfo.State SUCCEEDED;
+  }
+
+  public abstract class WorkManager {
+    method public final androidx.work.WorkContinuation beginUniqueWork(String, androidx.work.ExistingWorkPolicy, androidx.work.OneTimeWorkRequest);
+    method public abstract androidx.work.WorkContinuation beginUniqueWork(String, androidx.work.ExistingWorkPolicy, java.util.List<androidx.work.OneTimeWorkRequest!>);
+    method public final androidx.work.WorkContinuation beginWith(androidx.work.OneTimeWorkRequest);
+    method public abstract androidx.work.WorkContinuation beginWith(java.util.List<androidx.work.OneTimeWorkRequest!>);
+    method public abstract androidx.work.Operation cancelAllWork();
+    method public abstract androidx.work.Operation cancelAllWorkByTag(String);
+    method public abstract androidx.work.Operation cancelUniqueWork(String);
+    method public abstract androidx.work.Operation cancelWorkById(java.util.UUID);
+    method public final androidx.work.Operation enqueue(androidx.work.WorkRequest);
+    method public abstract androidx.work.Operation enqueue(java.util.List<? extends androidx.work.WorkRequest>);
+    method public abstract androidx.work.Operation enqueueUniquePeriodicWork(String, androidx.work.ExistingPeriodicWorkPolicy, androidx.work.PeriodicWorkRequest);
+    method public androidx.work.Operation enqueueUniqueWork(String, androidx.work.ExistingWorkPolicy, androidx.work.OneTimeWorkRequest);
+    method public abstract androidx.work.Operation enqueueUniqueWork(String, androidx.work.ExistingWorkPolicy, java.util.List<androidx.work.OneTimeWorkRequest!>);
+    method @Deprecated public static androidx.work.WorkManager getInstance();
+    method public static androidx.work.WorkManager getInstance(android.content.Context);
+    method public abstract com.google.common.util.concurrent.ListenableFuture<java.lang.Long!> getLastCancelAllTimeMillis();
+    method public abstract androidx.lifecycle.LiveData<java.lang.Long!> getLastCancelAllTimeMillisLiveData();
+    method public abstract com.google.common.util.concurrent.ListenableFuture<androidx.work.WorkInfo!> getWorkInfoById(java.util.UUID);
+    method public abstract androidx.lifecycle.LiveData<androidx.work.WorkInfo!> getWorkInfoByIdLiveData(java.util.UUID);
+    method public abstract com.google.common.util.concurrent.ListenableFuture<java.util.List<androidx.work.WorkInfo!>!> getWorkInfosByTag(String);
+    method public abstract androidx.lifecycle.LiveData<java.util.List<androidx.work.WorkInfo!>!> getWorkInfosByTagLiveData(String);
+    method public abstract com.google.common.util.concurrent.ListenableFuture<java.util.List<androidx.work.WorkInfo!>!> getWorkInfosForUniqueWork(String);
+    method public abstract androidx.lifecycle.LiveData<java.util.List<androidx.work.WorkInfo!>!> getWorkInfosForUniqueWorkLiveData(String);
+    method public static void initialize(android.content.Context, androidx.work.Configuration);
+    method public abstract androidx.work.Operation pruneWork();
+  }
+
+  public abstract class WorkRequest {
+    method public java.util.UUID getId();
+    field public static final long DEFAULT_BACKOFF_DELAY_MILLIS = 30000L; // 0x7530L
+    field public static final long MAX_BACKOFF_MILLIS = 18000000L; // 0x112a880L
+    field public static final long MIN_BACKOFF_MILLIS = 10000L; // 0x2710L
+  }
+
+  public abstract static class WorkRequest.Builder<B extends androidx.work.WorkRequest.Builder, W extends androidx.work.WorkRequest> {
+    method public final B addTag(String);
+    method public final W build();
+    method public final B keepResultsForAtLeast(long, java.util.concurrent.TimeUnit);
+    method @RequiresApi(26) public final B keepResultsForAtLeast(java.time.Duration);
+    method public final B setBackoffCriteria(androidx.work.BackoffPolicy, long, java.util.concurrent.TimeUnit);
+    method @RequiresApi(26) public final B setBackoffCriteria(androidx.work.BackoffPolicy, java.time.Duration);
+    method public final B setConstraints(androidx.work.Constraints);
+    method public B setInitialDelay(long, java.util.concurrent.TimeUnit);
+    method @RequiresApi(26) public B setInitialDelay(java.time.Duration);
+    method public final B setInputData(androidx.work.Data);
+  }
+
+  public abstract class Worker extends androidx.work.ListenableWorker {
+    ctor @Keep public Worker(android.content.Context, androidx.work.WorkerParameters);
+    method @WorkerThread public abstract androidx.work.ListenableWorker.Result doWork();
+    method public final com.google.common.util.concurrent.ListenableFuture<androidx.work.ListenableWorker.Result!> startWork();
+  }
+
+  public abstract class WorkerFactory {
+    ctor public WorkerFactory();
+    method public abstract androidx.work.ListenableWorker? createWorker(android.content.Context, String, androidx.work.WorkerParameters);
+  }
+
+  public final class WorkerParameters {
+    method public java.util.UUID getId();
+    method public androidx.work.Data getInputData();
+    method @RequiresApi(28) public android.net.Network? getNetwork();
+    method @IntRange(from=0) public int getRunAttemptCount();
+    method public java.util.Set<java.lang.String!> getTags();
+    method @RequiresApi(24) public java.util.List<java.lang.String!> getTriggeredContentAuthorities();
+    method @RequiresApi(24) public java.util.List<android.net.Uri!> getTriggeredContentUris();
+  }
+
+}
+
diff --git a/work/workmanager/api/res-2.3.0-alpha01.txt b/work/workmanager/api/res-2.3.0-alpha01.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/work/workmanager/api/res-2.3.0-alpha01.txt