Modify the contract storage pricing model
Now the price of the contract storage is fixed. We plan to modify it to refer to a number of incremental charging patterns as the storage capacity expands, encouraging the deletion of old data.

Significantly reduce the cost of smart contracts
Gas prices have been rising 100 times-fold since the old charges were made at a very low price. The gas will be difficult to apply if the fee standard is not modified.

Cancel the free smart contract execution
Now every time a smart contract is executed, the first 10 gas of the costs are waived. This can result in limited use of gas. Since Neo's holders can get free gas, they should be allowed to spend gas to use smart contracts.
Oppose: Adjusting the system pricing model #286 (comment)

A limited number/size of free transactions
Each block allows only a limited number of free transactions to be confirmed, and if this amount is exceeded, the excess transactions are queued to the next block confirmation process. If a free transaction is not confirmed in a certain number of blocks, it will be discarded.