• [Hexonet] Added: Support for two-factor authentication

• [Admin] Fixed: Poor SQL performance on "my tickets" listing page
• [API] Fixed: Some Ticket-related API calls may not work with permission error after recent update
• [API] Fixed: Using APIWrapper to open ticket duplicates it
• [Automation] Fixed: Tasks that record metered usage fail if variable allows for price override in account.
• [Billing] Fixed: Upgrades for post-paid qty-enabled services add a charge instead of a discount.
• [Billing] Fixed: Upgrades for post-paid services with extended due date add incorrect discount amount.