Maintenance Release: 5.8.4

• Fix - Events Calendar Pro promo shouldn't show when it's already installed or when not editing an event. [ET-2018]
• Fix - Addressed a problem preventing the export of event attendees by email. [ETP-904]
• Fix - In the block editor, ticket will no longer be deleted when you open the ticket block settings. [ET-2046]
• Fix - Show post excerpt line breaks within ticket emails. [ET-2006]
• Fix - Front-end tickets block button padding is now consistent on hover and when disabled. [ET-2035]
• Fix - Allow blank sender name and email to be stored within Tickets Emails settings. [ET-2008]
• Fix - Corrected an issue where attendees_table->prepare_items() was being called multiple times. [ET-2005]
• Fix - Tickets block will be properly registered when creating a new post or page. [ET-2045]
• Fix - Corrected an issue where the Post Tickets ORM method filter_by_has_tickets would prepare an empty statement. [ET-2017]
• Tweak - Added additional fields to the Event Tickets Site Health section. [ET-2017]
• Feature - Add the Series Pass email template. [ET-1854]
• Tweak - Adjusted the logic for calculating fees when using Stripe. [ET-2015]
• Tweak - Added filters: tec_tickets_email_class
• Tweak - Changed views: emails/series-pass, emails/template-parts/body/additional-content, emails/template-parts/body/post-description, emails/template-parts/body/series-events-list, emails/template-parts/body/series-pass-dates, emails/template-parts/body/thumbnail, emails/template-parts/header/head/series-pass-styles, emails/template-parts/header/head/styles
• Language - 22 new strings added, 91 updated, 0 fuzzied, and 0 obsoleted