Solana Devnet has started to get many features activated. Make sure you give each feature thorough testing with your application to check for any behavior changes. Changes such as the compute limit cap and rent exempt requirements can cause different behavior.
The Leader QoS proposal outlines how transactions can be prioritized to be forwarded or included in a block. It outlines prioritization as:
This proposal is still being discussion. Join the discussion!.
dataSliceto retrieve part of the account for a single account