Developers can now appeal when Apple determines that their apps violate App Store rules. The novelty was announced this spring during the WWDC: this means that the apps will be able to continue receiving updates as bug fixes pending the resolution of the dispute. There is an exception to this rule if the violation is related to legal matters; of course, important new functions cannot be released until a solution is found.
The other big news is that developers will be encouraged to suggest changes to the App Store guidelines. More generally, suggestions are welcome in relation to everything related to the App Store and Apple's development platform, with the aim of improving the experience for everyone.
In the last period, the number of developers complaining about some App Store policies – in particular that relating to the "tax" of 30% of all purchases has been steadily growing of app or in app. Apple is also very strict about preventing developers from promoting alternative payment systems that circumvent this rule. The last prominent case is that of Epic Games, the software house that develops, among others, the F2P Fortnite and the Unreal Engine.