diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a24fce3..db4d8b3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,11 @@
 For TODO between alpha and release, see https://github.com/knockout/tko/issues/1
 
+## 🐋   Alpha-2  ( Work in progress on the `master` branch )
 
-##  🏹  Alpha-1  ( Work in progress on the `master` branch )
 
-* Fix negation operator (-) application - integers `-1` work, as well as variables `-x` and expressions `-(x + y)`
+##  🏹  Alpha-1  (20 Dec 2016)
+
+* Fix negation operator (-) application - integers/floats e.g. `-1` work, as well as variables `-x` and expressions `-(x + y)`
 * Use tko.binding.foreach for the `foreach` binding (based on brianmhunt/knockout-fast-foreach)
 * Add `each` as an alias of `foreach`
 
diff --git a/dist/ko.js b/dist/ko.js
index 611d07fd..628dc717 100644
--- a/dist/ko.js
+++ b/dist/ko.js
@@ -8514,7 +8514,7 @@ extend(options.filters, filters);
 // Expose the API.
 var index = {
     // --- Top-level ---
-    version: '4.0.0-alpha0',
+    version: '4.0.0-alpha1',
     options: options,
 
     extenders: extenders,
diff --git a/dist/tko.js b/dist/tko.js
index a1c3db23..4c7f1f47 100644
--- a/dist/tko.js
+++ b/dist/tko.js
@@ -8514,7 +8514,7 @@ extend(options.filters, filters);
 // Expose the API.
 var index = {
     // --- Top-level ---
-    version: '4.0.0-alpha0',
+    version: '4.0.0-alpha1',
     options: options,
 
     extenders: extenders,
diff --git a/index.js b/index.js
index 8c6d961a..95770f1a 100644
--- a/index.js
+++ b/index.js
@@ -150,7 +150,7 @@ utils.extend(options.filters, punchesFilters);
 // Expose the API.
 export default {
     // --- Top-level ---
-    version: '4.0.0-alpha0',
+    version: '4.0.0-alpha1',
     options: options,
 
     extenders: extenders,
diff --git a/package.json b/package.json
index 82534960..92f96f29 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "tko",
   "description": "TKO is an experimental fork of Knockout",
   "homepage": "http://knockoutjs.com/",
-  "version": "4.0.0-alpha0",
+  "version": "4.0.0-alpha1",
   "license": "MIT",
   "author": "The Knockout.js Team",
   "main": "dist/knockout-latest.debug.js",