diff --git a/constants.py b/constants.py
index c5c7b9c2..bedc923a 100644
--- a/constants.py
+++ b/constants.py
@@ -1,6 +1,6 @@
 import yaml
 
-DEVELOPMENT_BRANCH = "11.2"
+DEVELOPMENT_BRANCH = "11.3"
 
 # Used to trigger the appropriate main branch
 branches_main = [
@@ -13,6 +13,7 @@
         '11.0',
         '11.1',
         '11.2',
+        '11.3',
         ]
 
 # Defines what builders report status to GitHub
@@ -151,6 +152,7 @@
 supportedPlatforms["11.0"] = supportedPlatforms["10.11"].copy()
 supportedPlatforms["11.1"] = supportedPlatforms["11.0"].copy()
 supportedPlatforms["11.2"] = supportedPlatforms["11.1"].copy()
+supportedPlatforms["11.3"] = supportedPlatforms["11.2"].copy()
 
 # Define environment variables for MTR step
 MTR_ENV = {
diff --git a/master-web/templates/grid_view/grid.jade b/master-web/templates/grid_view/grid.jade
index 2b51ef25..16c365f9 100644
--- a/master-web/templates/grid_view/grid.jade
+++ b/master-web/templates/grid_view/grid.jade
@@ -34,6 +34,8 @@
                 a(href="#grid?branch=11.1") 11.1
                 | ,
                 a(href="#grid?branch=11.2") 11.2
+                | ,
+                a(href="#grid?branch=11.3") 11.3
             label Results
             select.form-control(ng-model="C.result", ng-change="C.changeResult(C.result)", ng-options="r.code as r.text for r in C.results")
                 option(value="") (all)
diff --git a/master-web/templates/home.jade b/master-web/templates/home.jade
index 90351b99..aa0e3b10 100644
--- a/master-web/templates/home.jade
+++ b/master-web/templates/home.jade
@@ -34,6 +34,8 @@
             a(href="#grid?branch=11.1") 11.1
             | ,
             a(href="#grid?branch=11.2") 11.2
+            | ,
+            a(href="#grid?branch=11.3") 11.3
             | ) will give you a developer-oriented summary of recent buildbot activity.
           li
             | The