diff --git a/DEFAULT_ZONES.md b/DEFAULT_ZONES.md
index 5559353..62b2b8a 100644
--- a/DEFAULT_ZONES.md
+++ b/DEFAULT_ZONES.md
@@ -13,7 +13,7 @@ compliance with [RFC 1912](https://www.ietf.org/rfc/rfc1912.txt). The content
 of these zones is standardized, and the zone files for them are maintained by
 the package distributor.
 
-## Change Is Coming
+## Version 5.x vs. version 6.x of `puppet-bind`
 
 <a name="warning"></a>
 ### The Warning
@@ -30,10 +30,10 @@ If you are seeing this warning, it is because starting in version 6.0.0 certain
 catalog application failures. There are [steps](#configuration-changes) to take
 prior to version 6.0.0 to prepare for it.
 
-### The Present: Debian and Red Hat Divergence
+### Older versions: Debian and Red Hat Divergence
 
-The treatment of default zones in this module has been different between Debian
-and Red Hat systems until now.
+The treatment of default zones in versions 5.x and earlier of this module has
+differed between Debian and Red Hat systems.
 
 On Debian systems, the `bind9` package installs a separate configuration file
 at `/etc/bind/named.conf.default-zones` which defines these zones and also
@@ -49,7 +49,7 @@ rewrites this file, these definitions are lost.
 
 In both cases, the current behavior is not configurable and always happens.
 
-### The Future: Consistency with Flexibility
+### Version 6.x and later: Consistency with Flexibility
 
 Starting in version 6.0.0 of this module, default zones will be preserved on
 both Debian and Red Hat, with the option of disabling them. This will not
diff --git a/README.md b/README.md
index 82c4fe3..519efc5 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
 
 [![Build Status](https://secure.travis-ci.org/inkblot/puppet-bind.png)](http://travis-ci.org/inkblot/puppet-bind)
 
-**IMPORTANT UPGRADE INFORMATION:** In a future version of this module there
-will be significant changes to the handling of default zones that may require
+**IMPORTANT UPGRADE INFORMATION:** In version 6.0.0 of this module there are
+significant changes to the handling of default zones that may require
 preparations prior to upgrading. See [DEFAULT_ZONES.md](DEFAULT_ZONES.md) for
 details.
 
diff --git a/data/common.yaml b/data/common.yaml
index 0984f00..14f23a3 100644
--- a/data/common.yaml
+++ b/data/common.yaml
@@ -2,7 +2,6 @@
 bind::defaults::supported: false
 bind::defaults::random_device: '/dev/random'
 bind::defaults::rndc: true
-bind::defaults::default_zones_warning: false
 
 bind::forwarders: ''
 bind::dnssec: true
diff --git a/data/osfamily/RedHat.yaml b/data/osfamily/RedHat.yaml
index 50f1697..a7fc8bd 100644
--- a/data/osfamily/RedHat.yaml
+++ b/data/osfamily/RedHat.yaml
@@ -9,7 +9,6 @@ bind::defaults::managed_keys_directory: '/var/named/dynamic'
 bind::defaults::confdir: '/etc/named'
 bind::defaults::namedconf: '/etc/named.conf'
 bind::defaults::cachedir: '/var/named'
-bind::defaults::default_zones_warning: true
 bind::defaults::default_zones_include: '/etc/named.default-zones.conf'
 bind::defaults::default_zones_source: 'puppet:///modules/bind/RedHat/named.default-zones.conf'
 
diff --git a/manifests/defaults.pp b/manifests/defaults.pp
index e8cec51..5b5e06c 100644
--- a/manifests/defaults.pp
+++ b/manifests/defaults.pp
@@ -12,7 +12,6 @@ class bind::defaults (
     $bind_service           = undef,
     $nsupdate_package       = undef,
     $managed_keys_directory = undef,
-    $default_zones_warning  = undef,
     $default_zones_include  = undef,
     $default_zones_source   = undef,
 ) {
diff --git a/manifests/zone.pp b/manifests/zone.pp
index afcab2c..27d68ac 100644
--- a/manifests/zone.pp
+++ b/manifests/zone.pp
@@ -29,7 +29,6 @@ define bind::zone (
     $random_device = $::bind::defaults::random_device
     $bind_user = $::bind::defaults::bind_user
     $bind_group = $::bind::defaults::bind_group
-    $default_zones_warning = $::bind::defaults::default_zones_warning
     $include_default_zones = $::bind::include_default_zones
 
     $_domain = pick($domain, $name)
@@ -38,8 +37,8 @@ define bind::zone (
         default => $_domain
     }
 
-    if $include_default_zones and $default_zones_warning and member(['.', 'localhost', '127.in-addr.arpa', '0.in-addr.arpa', '255.in-addr.arpa'], $_domain) {
-        warning("The bind module will include a default definition for zone \"${_domain}\" starting in version 6.0.0. Please see https://github.com/inkblot/puppet-bind/blob/master/DEFAULT_ZONES.md for more information about how this will affect your configuration.")
+    if $include_default_zones and member(['.', 'localhost', '127.in-addr.arpa', '0.in-addr.arpa', '255.in-addr.arpa'], $_domain) {
+        fail("The bind module includes a default definition for zone \"${_domain}\" starting in version 6.0.0. Please see https://github.com/inkblot/puppet-bind/blob/master/DEFAULT_ZONES.md for more information about how this affects your configuration.")
     }
 
     unless !($masters != '' and ! member(['slave', 'stub'], $zone_type)) {
diff --git a/metadata.json b/metadata.json
index 8a0ff8c..71cd120 100644
--- a/metadata.json
+++ b/metadata.json
@@ -1,6 +1,6 @@
 {
   "name": "inkblot/bind",
-  "version": "5.2.0",
+  "version": "6.0.0",
   "author": "inkblot",
   "license": "Apache-2.0",
   "summary": "ISC BIND name server",