diff --git a/source/deployment/opennebula_installation/frontend_installation.rst b/source/deployment/opennebula_installation/frontend_installation.rst
index 3e26a4fc7..1827f18f9 100644
--- a/source/deployment/opennebula_installation/frontend_installation.rst
+++ b/source/deployment/opennebula_installation/frontend_installation.rst
@@ -94,17 +94,6 @@ Install OpenNebula
 
 Install the CentOS/RHEL OpenNebula Front-end with packages from **our repository** by executing the following as root:
 
-.. note::
-
-   On CentOS/RHEL 8, the essential packages ``openpgm`` and ``openpgm-devel``
-   are still part of the EPEL testing repository, which is not enabled
-   by default. Before installing OpenNebula, you have to first install
-   these packages by running;
-
-   .. prompt:: bash # auto
-
-       # yum install --enablerepo=epel-testing openpgm openpgm-devel
-
 .. prompt:: bash # auto
 
     # yum install opennebula-server opennebula-sunstone opennebula-ruby opennebula-gate opennebula-flow
diff --git a/source/intro_release_notes/release_notes/resolved_issues_5101.rst b/source/intro_release_notes/release_notes/resolved_issues_5101.rst
index 836cfbee5..6bc80be6e 100644
--- a/source/intro_release_notes/release_notes/resolved_issues_5101.rst
+++ b/source/intro_release_notes/release_notes/resolved_issues_5101.rst
@@ -13,3 +13,4 @@ The following issues has been solved in 5.10.1:
 
 - `Fix Hook messages to not nest CDATA tags <https://github.com/OpenNebula/one/issues/3996>`__.
 - `Fix a quoting error with LXD marketplace apps URL <https://github.com/OpenNebula/one/issues/4005>`__.
+- `Install Ruby gem Dalli <https://github.com/OpenNebula/one/issues/4003>`__.