OpenLDAP Upgrade

HI,

We have OpenLDAP 2.4.xx running in RHEL6.4. We are planning to upgrade the RHEL version to 7.9 and then upgrade the OpenLDAP to 2.6.

The OpenLDAP installed are all RPMs

#rpm -qa | grep -i openldap openldap-2.4.23-31.el6.x86_64 compat-openldap-2.3.43-2.el6.x86_64 openldap-devel-2.4.23-31.el6.x86_64 openldap-servers-2.4.23-31.el6.x86_64 openldap-clients-2.4.23-31.el6.x86_64

But the package for OpenLDAP available is binary packages. I need help how to upgrade considering the existing LDAP database, schema and configuration are required to be there after the upgrade.

We have 2 Master server, 2 Consumer server and 2 loadbalancer running keepalived.

Appreciate if anyone can help to upgrade the OS as well as the OpenLDAP package.

Thanks Santosh