Prepare to publish (#1633)

diff --git a/pkgs/test/CHANGELOG.md b/pkgs/test/CHANGELOG.md
index dfb58db..cc7d36f 100644
--- a/pkgs/test/CHANGELOG.md
+++ b/pkgs/test/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 1.19.4-dev
+## 1.19.4
 
 * Wait for paused VM platform isolates before shutdown.
 * `TestFailure` implements `Exception` for compatibility with
diff --git a/pkgs/test/pubspec.yaml b/pkgs/test/pubspec.yaml
index 3d4de89..281af65 100644
--- a/pkgs/test/pubspec.yaml
+++ b/pkgs/test/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test
-version: 1.19.4-dev
+version: 1.19.4
 description: >-
   A full featured library for writing and running Dart tests across platforms.
 repository: https://github.com/dart-lang/test/blob/master/pkgs/test
diff --git a/pkgs/test_api/CHANGELOG.md b/pkgs/test_api/CHANGELOG.md
index 9d8abd8..5cef5ce 100644
--- a/pkgs/test_api/CHANGELOG.md
+++ b/pkgs/test_api/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.4.8-dev
+## 0.4.8
 
 * `TestFailure` implements `Exception` for compatibility with
   `only_throw_exceptions`.
diff --git a/pkgs/test_api/pubspec.yaml b/pkgs/test_api/pubspec.yaml
index 356b7e8..07e9206 100644
--- a/pkgs/test_api/pubspec.yaml
+++ b/pkgs/test_api/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test_api
-version: 0.4.8-dev
+version: 0.4.8
 description: A library for writing Dart tests.
 homepage: https://github.com/dart-lang/test/blob/master/pkgs/test_api
 
diff --git a/pkgs/test_core/CHANGELOG.md b/pkgs/test_core/CHANGELOG.md
index af020dd..da0065c 100644
--- a/pkgs/test_core/CHANGELOG.md
+++ b/pkgs/test_core/CHANGELOG.md
@@ -1,4 +1,4 @@
-## 0.4.9-dev
+## 0.4.9
 
 * Wait for paused VM platform isolates before shutdown.
 
diff --git a/pkgs/test_core/pubspec.yaml b/pkgs/test_core/pubspec.yaml
index 3297b8a..68a6442 100644
--- a/pkgs/test_core/pubspec.yaml
+++ b/pkgs/test_core/pubspec.yaml
@@ -1,5 +1,5 @@
 name: test_core
-version: 0.4.9-dev
+version: 0.4.9
 description: A basic library for writing tests and running them on the VM.
 homepage: https://github.com/dart-lang/test/blob/master/pkgs/test_core