• Fixed a NewsBlur syncing bug that had the app re-sending previously-sent sync statuses to the server, which was wildly inefficent
• Added Cache-Control feature: the app is now looking at the max-age and not downloading the feed again before it’s time — but with an important caveat: any max-age beyond five hours is set to five hours. (Our testing shows that lots of sites that use Cache-Control have it misconfigured for their feeds. The largest max-age we’ve seen is one year, and months are not uncommon.)
• Added a 29-minute minimum on refresh for any given feed
• Moved saving feed settings/metadata to a background thread (super-small performance optimization)