diff --git a/build/buildbot/config/include/defs.xml b/build/buildbot/config/include/defs.xml
index 3a3f7bf5d4..c5271866e5 100644
--- a/build/buildbot/config/include/defs.xml
+++ b/build/buildbot/config/include/defs.xml
@@ -19,9 +19,9 @@
     Constants
 -->
 <xsl:template name="SVN_URL">http://svn.wxwidgets.org/svn/wx/wxWidgets/</xsl:template>
-<xsl:template name="STABLE_BRANCH">branches/WX_2_8_BRANCH</xsl:template>
+<xsl:template name="STABLE_BRANCH">branches/WX_3_0_BRANCH</xsl:template>
 <xsl:variable name="STABLE_BRANCH"><STABLE_BRANCH/></xsl:variable>
-<xsl:template name="RELEASE_BRANCH">branches/WX_2_9_0_BRANCH</xsl:template>
+<xsl:template name="RELEASE_BRANCH">branches/WX_3_1_0_BRANCH</xsl:template>
 <xsl:variable name="RELEASE_BRANCH"><RELEASE_BRANCH/></xsl:variable>
 <xsl:template name="SNAPSHOT_URL">http://biolpc22.york.ac.uk/pub</xsl:template>
 
@@ -45,7 +45,7 @@
     Typically just:
         <checkout/>
     for the trunk, or:
-        <checkout branch="branches/WX_2_8_BRANCH"/>
+        <checkout branch="branches/WX_3_0_BRANCH"/>
     to checkout a branch.
 -->
 <xsl:template name="checkout">
diff --git a/build/buildbot/config/include/unix.xml b/build/buildbot/config/include/unix.xml
index 7c82002788..78c9813b43 100644
--- a/build/buildbot/config/include/unix.xml
+++ b/build/buildbot/config/include/unix.xml
@@ -37,7 +37,7 @@
     Usage typically just:
         <checkout/>
     for the trunk, or:
-        <checkout branch="branches/WX_2_8_BRANCH"/>
+        <checkout branch="branches/WX_3_0_BRANCH"/>
     to checkout a branch.
 -->
 <xsl:template name="checkout">
diff --git a/build/buildbot/config/include/xp_vc.xml b/build/buildbot/config/include/xp_vc.xml
index b229526bb3..3612902054 100644
--- a/build/buildbot/config/include/xp_vc.xml
+++ b/build/buildbot/config/include/xp_vc.xml
@@ -41,7 +41,7 @@
     Usage typically just:
         <checkout/>
     for the trunk, or:
-        <checkout branch="branches/WX_2_8_BRANCH"/>
+        <checkout branch="branches/WX_3_0_BRANCH"/>
     to checkout a branch.
 -->
 <xsl:template name="checkout">
diff --git a/docs/tech/tn0022.txt b/docs/tech/tn0022.txt
index 521be74729..7cccd99349 100644
--- a/docs/tech/tn0022.txt
+++ b/docs/tech/tn0022.txt
@@ -175,3 +175,6 @@ milestone (ask Vadim or Robin to do it or to get admin password).
 
 Run misc/scripts/inc_release to increment micro version, i.e. replace x.y.z
 with x.y.z+1 (minor or major versions updates require manual intervention).
+
+Update the definition of the stable and release branches in
+build/buildbot/config/include/defs.xml after a minor version change.