diff --git a/0001-Only-resize-plot-texture-if-size-actually-changes.patch b/0001-Only-resize-plot-texture-if-size-actually-changes.patch
new file mode 100644
index 0000000..26c781e
--- /dev/null
+++ b/0001-Only-resize-plot-texture-if-size-actually-changes.patch
@@ -0,0 +1,44 @@
+From f399aa8b48db02f809454be5427c0ca01b809882 Mon Sep 17 00:00:00 2001
+From: David Edmundson <kde@davidedmundson.co.uk>
+Date: Tue, 7 Jul 2015 11:54:11 +0100
+Subject: [PATCH 1/1] Only resize plot texture if size actually changes
+
+Test compared rounded QSize with QSizeF, which will be almost always
+returning true.
+
+CCBUG: 348385
+REVIEW: 124280
+---
+ src/qmlcontrols/kquickcontrolsaddons/plotter.cpp | 13 ++++++-------
+ 1 file changed, 6 insertions(+), 7 deletions(-)
+
+diff --git a/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp b/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp
+index 9a939c3626fc6321a39e898b88e5b69c14b4e1b7..93da3c75e87aa21f6c5356b35764ded03f01d2e7 100644
+--- a/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp
++++ b/src/qmlcontrols/kquickcontrolsaddons/plotter.cpp
+@@ -799,16 +799,15 @@ QSGNode *Plotter::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updateP
+         u_matrix = s_program->uniformLocation("matrix");
+     }
+ 
+-    if (n->texture()->textureSize() != boundingRect().size()) {
+-        //we need a size always equal or smaller, size.toSize() won't do
+-        static_cast<PlotTexture *>(n->texture())->recreate(QSize(qRound(boundingRect().size().width()), qRound(boundingRect().size().height())));
++    //we need a size always equal or smaller, size.toSize() won't do
++    const QSize targetTextureSize(qRound(boundingRect().size().width()), qRound(boundingRect().size().height()));
++    if (n->texture()->textureSize() != targetTextureSize) {
++        static_cast<PlotTexture *>(n->texture())->recreate(targetTextureSize);
+         m_matrix = QMatrix4x4();
+-        m_matrix.ortho(0, qRound(width()), 0, qRound(height()), -1, 1);
++        m_matrix.ortho(0, targetTextureSize.width(), 0, targetTextureSize.height(), -1, 1);
+     }
+ 
+-    n->setRect(QRect(QPoint(0,0),
+-                     QSize(qRound(boundingRect().size().width()),
+-                           qRound(boundingRect().size().height()))));
++    n->setRect(QRect(QPoint(0,0), targetTextureSize));
+     return n;
+ }
+ 
+-- 
+2.4.5
+
diff --git a/kdeclarative-5.11.0.tar.xz b/kdeclarative-5.11.0.tar.xz
deleted file mode 100644
index cf6db14..0000000
--- a/kdeclarative-5.11.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:d93148c3284d85b31cc79378ba52bbc38aad2a7364a93ecaaf2206b2771c40ea
-size 159108
diff --git a/kdeclarative-5.12.0.tar.xz b/kdeclarative-5.12.0.tar.xz
new file mode 100644
index 0000000..2db111b
--- /dev/null
+++ b/kdeclarative-5.12.0.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f521aacf66367c9f76e94c473b158cf78f104f01e006a4c91515c45eb232cc4c
+size 163848
diff --git a/kdeclarative.changes b/kdeclarative.changes
index cd3122b..85515bc 100644
--- a/kdeclarative.changes
+++ b/kdeclarative.changes
@@ -1,3 +1,22 @@
+-------------------------------------------------------------------
+Wed Jul  8 18:58:24 UTC 2015 - hrvoje.senjan@gmail.com
+
+- Added 0001-Only-resize-plot-texture-if-size-actually-changes.patch
+  (kde#346134, kde#348385)
+
+-------------------------------------------------------------------
+Sun Jul  5 18:44:54 UTC 2015 - hrvoje.senjan@gmail.com
+
+- Update to 5.12.0
+  * Add QQC clone of KColorButton
+  * Assign a QmlObject for each kdeclarative instance when possible
+  * Make Qt.quit() from QML code work
+  * Merge branch 'mart/singleQmlEngineExperiment'
+  * Implement sizeHint based on implicitWidth/height
+  * Subclass of QmlObject with static engine
+  * For more details please see:
+    https://www.kde.org/announcements/kde-frameworks-5.12.0.php
+
 -------------------------------------------------------------------
 Sun Jun  7 19:07:17 UTC 2015 - hrvoje.senjan@gmail.com
 
diff --git a/kdeclarative.spec b/kdeclarative.spec
index 515da34..6e4d2d1 100644
--- a/kdeclarative.spec
+++ b/kdeclarative.spec
@@ -18,9 +18,9 @@
 
 %bcond_without lang
 %define lname   libKF5Declarative5
-%define _tar_path 5.11
+%define _tar_path 5.12
 Name:           kdeclarative
-Version:        5.11.0
+Version:        5.12.0
 Release:        0
 %define kf5_version %{version}
 BuildRequires:  cmake >= 2.8.12
@@ -49,6 +49,8 @@ Group:          System/GUI/KDE
 Url:            http://www.kde.org
 Source:         http://download.kde.org/stable/frameworks/%{_tar_path}/%{name}-%{version}.tar.xz
 Source1:        baselibs.conf
+# PATCH-FIX-UPSTREAM 0001-Only-resize-plot-texture-if-size-actually-changes.patch
+Patch0:         0001-Only-resize-plot-texture-if-size-actually-changes.patch
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
@@ -104,6 +106,7 @@ Development files.
 %lang_package -n %lname
 %prep
 %setup -q
+%patch0 -p1
 
 %build
   %cmake_kf5 -d build