diff --git a/CHANGES.md b/CHANGES.md
index 817a11b2..512a7c99 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,6 +1,5 @@
 ## 3.0: 2016-08-26
 
-
 * Refactored 'old' logging into it's own external plugin; seneca-legacy-logger.
 * Added new adaptor based JSON logging. External loggers can now be used with Seneca.
 * Created new 'built-in' logger which is used as the default logger if none are provided.
@@ -10,6 +9,7 @@
 * Exposed parsepattern function via seneca.util.parsepattern as required by seneca-chain to function.
 * Removed all 'dead' code marked legacy. Updated other parts of codebase with legacy comments for v.next.
 * Removed default settings for seneca-admin as it is not a default loaded plugin.
+* Set `options.actcache.active` to be false by default. Disables actcache feature by default.
 * Moved `close_signals` from `options.internal` to `options.system`.
 * Moved `catchall` from `options.internal` to `options.system`.
 * Removed `options.schema` as it was only partially checking and needs a rethink.
diff --git a/seneca.js b/seneca.js
index 2406ad2a..d5d210c8 100644
--- a/seneca.js
+++ b/seneca.js
@@ -102,7 +102,7 @@ var internals = {
 
     // Action cache. Makes inbound messages idempotent.
     actcache: {
-      active: true,
+      active: false,
       size: 11111
     },
 
diff --git a/test/seneca.test.js b/test/seneca.test.js
index b44eacc2..50551cd8 100644
--- a/test/seneca.test.js
+++ b/test/seneca.test.js
@@ -882,7 +882,7 @@ describe('seneca', function () {
   })
 
   it('act-cache', function (done) {
-    var si = Seneca(testopts)
+    var si = Seneca(testopts, {actcache: {active: true}})
     si.options({errhandler: done})
 
     si.use('entity')