This appears to have been a problem during the beta, but I can't find a mention of it yet for the official iOS 9 release today so I thought I'd start us off… After the update, launching the Podcast app gets an "Updating Library" screen and then dies after about 10 seconds of the spinning gear. Note that I did have a HUGE library and there's probably an issue with memory. I had 30 gigs of podcast episodes comprising over 150 podcasts to which I'd subscribed. As a first attempt to fix I deleted every single podcast on the phone to try and clear out the library, but the badge still indicated that I had 9 unplayed podcasts and it still crashed again on launch while attempting to update the library. Resetting the iPhone did not fix. No clue where to go next for a fix and I will be calling Apple. I'll report back here if I find anything useful.