X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=README;h=95e7d62b8e73e7bb775bfdb62b2aa7d982f95127;hb=5ec7a37c81d6f64f35b1f35e2f0e3157e83f2718;hp=5063069009e490e245e57e3498f07a61cb3c2cbf;hpb=171d6a4bd5e05b56be83860701d35bfe1373d6a7;p=collectd.git

diff --git a/README b/README
index 50630690..95e7d62b 100644
--- a/README
+++ b/README
@@ -550,8 +550,10 @@ Prerequisites
     <http://tangent.org/552/libmemcached.html>
 
   * libmodbus (optional)
-    Used by the `modbus' plugin to communicate with Modbus/TCP devices.
-    <https://launchpad.net/libmodbus>
+    Used by the “modbus” plugin to communicate with Modbus/TCP devices. The
+    “modbus” plugin works with version 2.0.3 of the library – due to frequent
+    API changes other versions may or may not compile cleanly.
+    <http://www.libmodbus.org/>
 
   * libmysqlclient (optional)
     Unsurprisingly used by the `mysql' plugin.