In addition to filtering a search, it's now also possible to exclude from search results. Use the minus icon next to the filter icon. This makes it possible to create e.g. improved views of your main feed, such as "Main feed minus Bookmarks", which excludes bookmarked items from the results.

Automatic sources of a feed can now be viewed from the rating popup. This makes it possible to view your main feed sources and their latest items in best-first order.

The contact page now explains how to add friends and what the different symbols mean.

It's no longer possible to manually categorize items into the profile. This was mostly redundant, because owned items and rated items are automatically added to the profile. Manually adding items to feeds still works like before.

The main feed is no longer a special built-in feature. Users are automatically created private "Main Feed" and "Bookmarks" feeds and they're pinned. This simplifies the implementation and makes it more flexible for the users -- now it's possible to search from public main feeds of other users etc.

New accounts were created with the default visibility (private) and were not visible to other users.

Feeds and searches can now be pinned to the top row for ease of access. The controls are in the rating popup.

Feeds can now be automated by the users. The contents of any search or feed can be automatically sent to an owned feed. One feed can have up to 100 automatic sources. Normal following and the main feed will be later integrated into this more general feed system, and UI improved.

You can now pin your own feeds in the rating popup. There are 4 slots for pinned feeds. Each pinned feed will appear as a button besides the rating button. Clicking the button will collect the item in question to the pinned feed.

Feeds of other users can now be collected into own feeds and profile.

User-created feeds are now visible in the related list.

The search index, ratings and reputations are now pinned to memory. This should reduce delays in searches and page loads.

Adding a link now uses the search index to check if the link already exist. This should fix the extension popup loading for a long time.

Per-account reputation count is now capped to 20k. Reputations closest to 0 are discarded first. This should speed up viewing suggestions.

Search now requires an exact match. Wildcards coming later.

Updated guide to explain how to add a friend, how to create posts and feeds.

Exclusive terms now work with a minus sign. Add "-thing" to your search to remove all items with "thing" in the title. This is now also explained in the guide.

Changed the pricing of bronze and gold plans. Added platinum and diamond plans for power users.

Optimized search. Text search no longer finds itself as a search item.

Reputation algorithm recurses now only into searches rated by the user.

Added icons to all account, feed, post and search items.

Optimized text search and suggestion search.

Post and feed creation panels are now in the profile page. Adding links works still through the search.

Many small tweaks and fixes.

Completely changed how collecting works. Topics are now Feeds. Users can collect items only into their own feeds. No longer do blue items (objective feeds) have subjective contents. This change makes the system simpler, better and more scalable.