If you not able update, it's not possible impact for your system.
If update successful, need running 'sh /script/cleanup' as usual.
I ran 'yum update --enablerepo=mratwork-testing*' as well, new version downloaded and update, after this, ran 'sh /script/cleanup' but all pages got 403 error
none of the sh scripts work now and "qmail splogger" send me 1000000~ error again and again
reboot server but after restart again error, can not run any command
I don't know happened here
[root@ZTZN001 ~]# yum update
Loaded plugins: fastestmirror, priorities, protectbase, replace, security
Loading mirror speeds from cached hostfile
* base: centos.mirror.transip.nl
* epel: mirror.nl.leaseweb.net
* extras: mirror.widexs.nl
* mratwork-epel: mirror.nl.leaseweb.net
* mratwork-ius: ius.cu.be
* updates: mirrors.supportex.net
0 packages excluded due to repository protections
Setting up Update Process
No Packages marked for Update