Before you think about clicking on any Wordpress upgrade link, please contact us so we may determine if this upgrade is necessary and what the impact may be.
Open source platforms will typically have plugins installed that enable specific functionality and features. Each plugin needs to be reviewed for viability in any upgrade to ward off any potential issues.
We have a process that we follow for all upgrades of platforms, specifically CMS platforms, as they need to done very deliberately and carefully so as not to disrupt marketing activities.