diff --git a/docs/changelog/7.x.x.txt b/docs/changelog/7.x.x.txt
index 89099c5c0..1aa2417e6 100644
--- a/docs/changelog/7.x.x.txt
+++ b/docs/changelog/7.x.x.txt
@@ -5,6 +5,7 @@
  - fixed #11150: matrix - search boxes all ticked
  - fixed #11063: template_attachments
  - fixed #11002: Matrix shows backend stuff on load
+ - added #10082: Unarchive all collaboration posts
 
 7.8.2
  - Added scheduled vendor payout workflow activity. (Special thanks to Martin @ Oqapi)
diff --git a/lib/WebGUI/Asset/Wobject/Collaboration.pm b/lib/WebGUI/Asset/Wobject/Collaboration.pm
index 8d13c67a4..795307fb3 100644
--- a/lib/WebGUI/Asset/Wobject/Collaboration.pm
+++ b/lib/WebGUI/Asset/Wobject/Collaboration.pm
@@ -1572,6 +1572,23 @@ sub view {
 
 #-------------------------------------------------------------------
 
+=head2 www_edit 
+
+Override the master class to add an "Unarchive All" link.
+
+=cut
+
+sub www_edit {
+    my $self = shift;
+    return $self->session->privilege->insufficient() unless $self->canEdit;
+    return $self->session->privilege->locked() unless $self->canEditIfLocked;
+    my $i18n = WebGUI::International->new($self->session, 'Asset_Collaboration');
+    $self->getAdminConsole->addConfirmedSubmenuItem($self->getUrl('func=unarchiveAll'),$i18n->get("unarchive all"),$i18n->get("unarchive confirm"));
+    return $self->getAdminConsole->render($self->getEditForm->print,$i18n->get("assetName"));
+}
+
+#-------------------------------------------------------------------
+
 =head2 www_search ( )
 
 The web method to display and use the forum search interface.
@@ -1627,6 +1644,35 @@ sub www_subscribe {
         return $self->www_view;
 }
 
+#----------------------------------------------------------------------------
+
+=head2 www_unarchiveAll ( )
+
+Unarchive all the threads in this collaboration system
+
+=cut
+
+sub www_unarchiveAll {
+    my ( $self ) = @_;
+    my $session     = $self->session;
+    return $session->privilege->insufficient() unless $self->canEdit;
+    my $pb      = WebGUI::ProgressBar->new($session);
+    my $i18n     = WebGUI::International->new($session, 'Asset_Collaboration');
+    $pb->start($i18n->get('unarchive all'), $self->getUrl('func=edit'));
+    my $threadIds = $self->getLineage(['children'],{
+        includeOnlyClasses      => [ 'WebGUI::Asset::Post::Thread' ],
+        statusToInclude         => [ 'archived' ],
+    } );
+    ASSET: foreach my $threadId (@$threadIds) {
+        my $thread = WebGUI::Asset->newPending($session, $threadId);
+        if (!$thread || !$thread->canEdit) {
+            next ASSET;
+        }
+        $thread->unarchive;
+    }
+    return $pb->finish( $self->getUrl('func=edit') );
+}
+
 #-------------------------------------------------------------------
 
 =head2 www_unsubscribe (  )
diff --git a/lib/WebGUI/i18n/English/Asset_Collaboration.pm b/lib/WebGUI/i18n/English/Asset_Collaboration.pm
index ad2d4d40c..ed6b1559a 100644
--- a/lib/WebGUI/i18n/English/Asset_Collaboration.pm
+++ b/lib/WebGUI/i18n/English/Asset_Collaboration.pm
@@ -1736,6 +1736,18 @@ the Collaboration Asset, the user will be notified.|,
         lastUpdated => 1229910435,
     },
 
+    'unarchive all' => {
+        message     => q{Unarchive All Threads},
+        context     => q{Label for link to unarchive all threads},
+        lastUpdated => 0,
+    },
+
+    'unarchive confirm' => {
+        message     => q{Are you sure? Any threads past the 'Archive After' interval will be re-archived.},
+        context     => q{Text for pop-up dialog to confirm unarchive all threads},
+        lastUpdated => 0,
+    },
+
 };
 
 1;
diff --git a/t/Asset/Wobject/Collaboration/unarchiveAll.t b/t/Asset/Wobject/Collaboration/unarchiveAll.t
new file mode 100644
index 000000000..cb3866b07
--- /dev/null
+++ b/t/Asset/Wobject/Collaboration/unarchiveAll.t
@@ -0,0 +1,56 @@
+# vim:syntax=perl
+#-------------------------------------------------------------------
+# WebGUI is Copyright 2001-2009 Plain Black Corporation.
+#-------------------------------------------------------------------
+# Please read the legal notices (docs/legal.txt) and the license
+# (docs/license.txt) that came with this distribution before using
+# this software.
+#------------------------------------------------------------------
+# http://www.plainblack.com                     info@plainblack.com
+#------------------------------------------------------------------
+
+# Test the unarchiveAll function of the collaboration system
+# 
+#
+
+use FindBin;
+use strict;
+use lib "$FindBin::Bin/../../../lib";
+use Test::More;
+use WebGUI::Test; # Must use this before any other WebGUI modules
+use WebGUI::Session;
+
+#----------------------------------------------------------------------------
+# Init
+my $session         = WebGUI::Test->session;
+
+my $collab          = WebGUI::Asset->getImportNode( $session )->addChild({
+    className       => 'WebGUI::Asset::Wobject::Collaboration',
+    archiveAfter    => 60*60*365.25,
+});
+
+# Add a thread
+my @threads = (
+    $collab->addChild({
+        className       => 'WebGUI::Asset::Post::Thread',
+        status          => 'archived',
+        title           => 'Archived',
+    }, undef, undef, { skipAutoCommitWorkflows => 1 }),
+);
+
+my $tag = WebGUI::VersionTag->getWorking( $session );
+$tag->commit;
+WebGUI::Test->tagsToRollback($tag);
+
+#----------------------------------------------------------------------------
+# Tests
+
+plan tests => 1;        # Increment this number for each test you create
+
+#----------------------------------------------------------------------------
+# www_unarchiveAll sets all threads to approved
+$collab->www_unarchiveAll;
+$threads[0] = WebGUI::Asset->newByDynamicClass( $session, $threads[0]->getId );
+is( $threads[0]->get('status'), 'approved', "unarchiveAll sets thread to approved" );
+
+#vim:ft=perl