Release tracker: v2.3.4

[joelabreo227]

README

This issue is designated purely for internal tracking of issues triaged and scheduled for resolution in the upcoming release. The list of tasks within this issue is dynamic and may be modified as we progress through the associated sprints. Also note that resolution for these tasks may take various forms:

• Pull requests (PRs)
• Closing comments with explanations
• Documentation updates
• Other relevant actions

• Cannot uncheck Purge Homephae options
• fastcgi cache purge fails if not using trailing slashes in URI structure
• What's _purge_personal_urls() for?