We're delivering small improvements on a daily basis. But for this update, I'll be highlighting our biggest changes within last month.
It's now possible to edit product description and title to avoid duplicated content in your stores. It could help you tailor your store to better match branded store experience and unique content will improve your ranking in google.
We slightly reorganized our database structure to boost performance of stores to make them instantaneous. It means that every page will render within 3 seconds to brings you better conversions and improve google ranking
Store operations will never be interrupted by unresponsive Amazon API's, but product updates could be affected by Inactive API keys (due to low sales activity) or by Amazon API downtimes. It has become less of an issue, since we're introducing different fallback methods.
As always, happy to hear any feedback.