diff --git a/lib/jasmine-core/jasmine.js b/lib/jasmine-core/jasmine.js
index 703194d5..4846279a 100644
--- a/lib/jasmine-core/jasmine.js
+++ b/lib/jasmine-core/jasmine.js
@@ -10749,5 +10749,5 @@ getJasmineRequireObj().UserContext = function(j$) {
 };
 
 getJasmineRequireObj().version = function() {
-  return '3.99.0-dev';
+  return '3.99.0';
 };
diff --git a/lib/jasmine-core/version.rb b/lib/jasmine-core/version.rb
index 001d4b5e..5209521b 100644
--- a/lib/jasmine-core/version.rb
+++ b/lib/jasmine-core/version.rb
@@ -4,6 +4,6 @@
 #
 module Jasmine
   module Core
-    VERSION = "3.99.0.dev"
+    VERSION = "3.99.0"
   end
 end
diff --git a/package.json b/package.json
index 18ca31ea..377cf6ba 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "jasmine-core",
   "license": "MIT",
-  "version": "3.99.0-dev",
+  "version": "3.99.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/jasmine/jasmine.git"
diff --git a/release_notes/3.99.0.md b/release_notes/3.99.0.md
new file mode 100644
index 00000000..af5c43b8
--- /dev/null
+++ b/release_notes/3.99.0.md
@@ -0,0 +1,15 @@
+# Jasmine Core 3.99.0 Release Notes
+
+## Summary
+
+This release adds deprecation warnings for breaking changes that will be
+introduced in Jasmine 4.0. Please see the
+[migration guide](https://jasmine.github.io/tutorials/upgrading_to_Jasmine_4.0)
+for more information. 
+
+This is the last planned release of jasmine-core for Ruby or Python. Versions
+4.0 and later will be offered only via NPM and the standalone distribution.
+
+------
+
+_Release Notes generated with _[Anchorman](http://github.com/infews/anchorman)_