The free version of Todoist has been updated with several new features, including file uploads, task sorting using filters, and the ability to add more tasks per project. However, users are now limited to five active projects at a time, which can be worked around by upgrading to Todoist Pro or using strategies such as splitting projects into sections or recycling existing projects. The update also brings new limitations, including a reduced file upload size limit, but the free version still offers a generous set of features, including integrations with thousands of other apps, and users who don't use projects as their main organizational tool may find it more powerful than ever. For those considering switching to an alternative app, options like TickTick or Microsoft To Do offer similar features without limitations.