Developers respond to Twitter's plans
'New Twitter' was never hugely popular. Tim Bray complained about the manner in which hashbangs break the web and almost exactly a year ago, Webb himself also stated he was unhappy with hashbang usage.
Hughes explained this isn't what Twitter did: "It made a giant fat client that loaded slowly, loaded your entire home page with a big background image and feed, then replaced it with whatever you had actually requested." But he also said that the updated architecture in itself won't be a magic wand for the service: "Twitter's going back to a server-rendered page, which for a single query like viewing one tweet will be faster for the service's server and the user. But if you then hit a user's page, or your own, or do anything that needs a reload, Twitter either has to send the whole page again like it's still 1995, or go back to the fat client and AJAX. Maybe someday it'll trim that client down…"