diff --git a/Changelog b/Changelog
index 0c3c2e179..c23ab86d3 100644
--- a/Changelog
+++ b/Changelog
@@ -1,5 +1,21 @@
-0.26.2          (xxxx-xx-xx):
+0.26.2          (2019-12-17):
 
+* Bugfix: %GITHUB%/issues/453
+      A crash happened when the "inverse" button is used on the TEXT
+      PCell
+* Bugfix: %GITHUB%/issues/449
+      The Qt windows styling plugin is now installed too on Windows.
+* Bugfix: %GITHUB%/issues/448
+      The LVSDB database wasn't written with the proper device 
+      class statements in short form.
+* Bugfix: %GITHUB%/issues/447
+      Net extraction did not work properly on a specific test case 
+      with folded and interleaving array instances.
+* Bugfix: %GITHUB%/issues/445
+      "Selection/Merge shapes" gave cryptic message when instances are selected
+* Enhancement: %GITHUB%/issues/444
+      Support for net joining though labels also for specific 
+      subcells (here: to support double-height standard cells)
 * Enhancement: %GITHUB%/issues/438
       Redefining a circuit in Spice netlists will give an error now
 * Bugfix: %GITHUB%/issues/445
diff --git a/src/edt/edt/edtPCellParametersPage.cc b/src/edt/edt/edtPCellParametersPage.cc
index 2df334ee4..6dd9448c2 100644
--- a/src/edt/edt/edtPCellParametersPage.cc
+++ b/src/edt/edt/edtPCellParametersPage.cc
@@ -48,7 +48,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
       {
         QLineEdit *le = dynamic_cast<QLineEdit *> (widget);
         if (le) {
+          le->blockSignals (true);
           le->setText (value.cast<int> ().to_qstring ());
+          le->blockSignals (false);
         }
       }
       break;
@@ -57,7 +59,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
       {
         QLineEdit *le = dynamic_cast<QLineEdit *> (widget);
         if (le) {
+          le->blockSignals (true);
           le->setText (value.cast<double> ().to_qstring ());
+          le->blockSignals (false);
         }
       }
       break;
@@ -66,7 +70,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
       {
         QLineEdit *le = dynamic_cast<QLineEdit *> (widget);
         if (le) {
+          le->blockSignals (true);
           le->setText (value.to_qstring ());
+          le->blockSignals (false);
         }
       }
       break;
@@ -75,7 +81,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
       {
         QLineEdit *le = dynamic_cast<QLineEdit *> (widget);
         if (le) {
+          le->blockSignals (true);
           le->setText (value.to_qstring ());
+          le->blockSignals (false);
         }
       }
       break;
@@ -94,7 +102,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
             lp.read (ex);
           }
 
+          ly->blockSignals (true);
           ly->set_current_layer (lp);
+          ly->blockSignals (false);
 
         }
       }
@@ -104,7 +114,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
       {
         QCheckBox *cbx = dynamic_cast<QCheckBox *> (widget);
         if (cbx) {
+          cbx->blockSignals (true);
           cbx->setChecked (value.to_bool ());
+          cbx->blockSignals (false);
         }
       }
       break;
@@ -120,7 +132,9 @@ static void set_value (const db::PCellParameterDeclaration &p, const db::Layout
       int i = 0;
       for (std::vector<tl::Variant>::const_iterator c = p.get_choices ().begin (); c != p.get_choices ().end (); ++c, ++i) {
         if (*c == value) {
+          cb->blockSignals (true);
           cb->setCurrentIndex (i);
+          cb->blockSignals (false);
         }
       }
     }