From fe5c1b755270b63c462f8d15eb44dbc2e532c5ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Franz=20P=C3=B6schel?= <franz.poeschel@gmail.com>
Date: Fri, 24 May 2024 16:49:31 +0200
Subject: [PATCH] Add warning: openPMD 2.0 still under development

---
 src/Series.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Series.cpp b/src/Series.cpp
index fbbb8bf1bf..a3749c5e73 100644
--- a/src/Series.cpp
+++ b/src/Series.cpp
@@ -139,6 +139,11 @@ std::string Series::openPMD() const
 
 Series &Series::setOpenPMD(std::string const &o)
 {
+    if (o >= "2.0")
+    {
+        std::cerr << "[Warning] openPMD 2.0 is still under development."
+                  << std::endl;
+    }
     setAttribute("openPMD", o);
     return *this;
 }