My jenkins server got upgraded but the earlier credentials are not working ?

[Krishna Kumar Tiwari]

Hi Team,

My jenkins got upgraded somehow from 1.595 to 1.630 and i am not able to login now with my usual credentials ? 

Any idea what might have cause this ?

[Victor Martinez]

You will need to provide further details.

It's worth if you check those logs (if you are based on linux: /var/log/jenkins/jenkins.log but it could be somewhere else)

On the other hand, if you use any ldap authentication within Jenkins you could edit your JENKINS_HOME/config.xml and remove that ldap setup manually (keep a backup file in case you need to rollback). 

Regarding the unknown upgrade, that's really weird....

Cheers