From b8a7bf3104dc648c371a885bd067e10a05c754b7 Mon Sep 17 00:00:00 2001
From: Automatic Release Builder <build@flightgear.org>
Date: Sun, 25 Oct 2020 18:08:44 +0000
Subject: [PATCH] Catalogs: add 2018 -> 2020 migration information

---
 catalog/stable-2018-catalog/template.xml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/catalog/stable-2018-catalog/template.xml b/catalog/stable-2018-catalog/template.xml
index c5d6bc5..b2d42e0 100644
--- a/catalog/stable-2018-catalog/template.xml
+++ b/catalog/stable-2018-catalog/template.xml
@@ -10,5 +10,12 @@
     by the FlightGear project, under a free-software license. These aircraft
     are compatible with FlightGear versions from 2018.</description>
     
+    <!-- migration to new stable catalog for 2020.3 release -->
+    <alternate-version>
+      <version>2020.3.*</version>
+       <id>org.flightgear.fgaddon.stable_2020</id>
+      <url>http://mirrors.ibiblio.org/flightgear/ftp/Aircraft-2020/catalog.xml</url>
+    </alternate-version>
+    
    </template>
 </PropertyList>