Updating README to highlight need to update warewulf-httpd.conf if upgrading.
@@ -24,6 +24,15 @@ the "Package Manifest" appendix located in each of the companion install
guide documents, and a list of updated packages can be found in the
[release notes](https://github.com/openhpc/ohpc/releases/tag/v1.3.GA).
+#### \*\* Important note for those upgrading from versions prior to 1.3
+
+There are significant changes included in the `warewulf-httpd.conf file` that ships with the warewulf-provision-server-ohpc package. If upgrading from a previously installed version, the updated config file will be saved as `/etc/httpd/conf.d/warewulf-httpd.conf.rpmnew` locally. You will need to copy this new version to the production file and restart the web server to ensure correct provisioning behavior. As an example for CentOS:
+
+```
+[sms]# cp /etc/httpd/conf.d/warewulf-httpd.conf.rpmnew /etc/httpd/conf.d/warewulf-httpd.conf
+[sms]# systemctl restart httpd
+```
+
#### Getting started
OpenHPC provides pre-built binaries via repositories for use with standard
