From 7b7de790debc4bed160ff711d50499be5a302fd9 Mon Sep 17 00:00:00 2001
From: Giacomo Lanza <37865804+Zack-83@users.noreply.github.com>
Date: Mon, 29 Apr 2024 16:50:07 +0200
Subject: [PATCH] Update README.md

---
 README.md | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index f15218d9..5d1392cc 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,11 @@
 
 ![Tests](https://github.com/rdmorganiser/rdmo-catalog/actions/workflows/tests.yaml/badge.svg)
 
-This repository contains all content objects (catalogs, attributes, options, conditions, views, tasks) to be used with the DMP software [RDMO](https://github.com/rdmorganiser/rdmo)
+This repository contains all content objects (catalogs, attributes, options, conditions, views, tasks) to be used with the DMP software [RDMO](https://github.com/rdmorganiser/rdmo).
+
+The main branch [master-rdmo2.x](https://github.com/rdmorganiser/rdmo-catalog/tree/master-rdmo2.x) contains material structured according to the recommended data model 2.0.0+. It is at the latest state and will be updated over time.
+
+The legacy branch [master-rdmo1.x](https://github.com/rdmorganiser/rdmo-catalog/tree/master-rdmo1.x) contains material structured according to the previous data model 1.6.0+. It is frozen at the state of April 2024 und will be not updated any more.
 
 The content officially curated by the [RDMO Consortium](https://rdmorganiser.github.io/Community/) is in the [`rdmorganiser`](./rdmorganiser) folder. We recommend to import these files to be able to make use of the official domain model, options, tasks and conditions. *Note that parts of these data are required to import user content because RDMO user's question catalogs may refer to parts of the official data*.