- Don't need type in username & password in case of error 429 triggered sign-in

- Support offline browsing

- Support 2018 released iPhones & Apple Watch series;
- Load up to 40 posts on Apple Watch

- Intelligently avoid exceeding tumblr api rate limit

- Promote "signin on iPhone" reminder on Apple Watch when necessary

- Bug fix: cells overlapping in some rare cases

- Cache images on Apple Watch

- On Apple Watch, set minimal fetch interval to 30 seconds

- Support Apple Watch with Watch OS 4.0 and later

- Also cache for animated gifs

- Handle text post with images;
- Handle video post only with webpage

- Specific reminder for error code 429 (exceed tumblr api rate limit)

- Cell minimal size adjustment

- search by tag;
- lock the app only when faceID or touchID is available for unlocking (which is not equal to have a faceID or touchID hardware)

- save video to local album

- Save image to local album

- blur screen in switch mode

- bug fix by updating Tumblr's sdk to 5.0.6
- optimization for iPhone X screen

- bug fix: not completely sign out