diff --git a/CHANGELOG.md b/CHANGELOG.md
index 962d2cd..dd450b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,5 @@
+**unreleased**
+
 **1.2.0**
 - Major rewrite of all demodulation components to make use of the new csdr/pycsdr and digiham/pydigiham demodulator
   modules
diff --git a/debian/changelog b/debian/changelog
index 0425bbe..430bfef 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,7 @@
+openwebrx (1.3.0) UNRELEASED; urgency=low
+
+ -- Jakob Ketterl <jakob.ketterl@gmx.de>  Thu, 16 Jun 2022 21:47:00 +0000
+
 openwebrx (1.2.0) bullseye jammy; urgency=low
 
   * Major rewrite of all demodulation components to make use of the new
diff --git a/htdocs/index.html b/htdocs/index.html
index 6646783..18834b3 100644
--- a/htdocs/index.html
+++ b/htdocs/index.html
@@ -55,6 +55,10 @@
         </div>
         <div id="openwebrx-panels-container">
             <div id="openwebrx-panels-container-left">
+                <div class="openwebrx-panel" data-panel-name="client-under-devel" style="width: 245px; background-color: Red;">
+                    <span style="font-size: 15pt; font-weight: bold;">Under construction</span>
+                    <br />We're working on the code right now, so the application might fail.
+                </div>
                 <div class="openwebrx-panel" id="openwebrx-panel-digimodes" style="display: none; width: 619px;" data-panel-name="digimodes">
                     <div id="openwebrx-digimode-canvas-container">
                         <div id="openwebrx-digimode-select-channel"></div>
diff --git a/owrx/version.py b/owrx/version.py
index a939c77..ace52b4 100644
--- a/owrx/version.py
+++ b/owrx/version.py
@@ -1,5 +1,5 @@
 from distutils.version import LooseVersion
 
-_versionstring = "1.2.0"
+_versionstring = "1.3.0-dev"
 looseversion = LooseVersion(_versionstring)
 openwebrx_version = "v{0}".format(looseversion)