We’d like to share with you how Search works and why the limitation is set on 30 days.
Basically the reason why we have to limit to 30 days for categories is because searching across a large number of feeds takes a long time to return results right now. This also explains why we can remove this limit when you search directly in a feed rather than a category, as that will return search results a lot faster.
You can still see all the older articles as unread in all your Collections/Categories. If you’ll click on the Gear icon on the top right and uncheck “Unread only” you’ll see all the articles, just marked as read.
Improving our search feature is one of our top priorities for feedly Pro, so we’re trying to up this limit soon. Unfortunately we don’t have an ETA to give you on that.David Phillips commented
I just renewed Feedly Pro a few minutes ago...my biggest issue with Feedly is still the 30 day limit. I want my feeds and posts to stay around - and MARKED UNREAD - until I get a chance to view them. For my purposes, 95+% of Feedly Pro is worthless but I would pay the annual fee for losing the 30 Day limit ALONE. I'm a software engineer, I understand the tradeoffs. There has to be a creative solution that allows me to not miss items until I get a chance to read them. Hybrid (offline/online) processing? I don't know, but this is probably my last Feedly renewal unless this is fixed. I'll go back to a desktop manager.
The current feedly apps (iOS and Android) do not offer offline article caching.
This is a feature we are looking into.
If you’re looking for offline support, some feedly partner apps support it (eg.Reeder and Newsify on iOS, or Press on Android).
Those apps are powered by the feedly Cloud API and will seamlessly recreate your reading environment (all your feeds are sync’ed from feedly when you login).
To explore the feedly partner apps and their features, visit http://www.feedly.com/apps.html