This release will show a notification for end of life support as MAL Library will only receive bug fixes. This is because MAL Library will not be transitioning to the new Official MAL API, which will happen later this year, only Shukofukurou. MAL Library will be usable until the end of the year, which is subject to change when the legacy Official MAL API is shut down.
Note that we cannot provide upgrades via the Mac App Store nor we can reference the free upgrade through the non-app store version, only the full Mac App Store version. If you purchased MAL Library recently (after March 1, 2018), you can request a free promo code by sending proof of purchase (iTunes receipt) to email@example.com.