Proposals: 1) Delete `ABI version` field from `*.abi.json` files, because we already have `version` field. [For example](https://github.com/broxus/tip3jetton/blob/3e08a4ec338ba9aed3bcaa49864acf802d8340af/build/TokenFactory.abi.json#L2-L3) 2) For external messages we reserve 591 bits for `address(this)`. [See doc here](https://github.com/everx-labs/ever-abi/blob/master/docs/ABI.md#signing-algorithm). But 267 (2+1+8+256) bits are enough for [address_std](https://github.com/ton-blockchain/ton/blob/master/crypto/block/block.tlb#L105-L106).
Proposals:
ABI versionfield from*.abi.jsonfiles, because we already haveversionfield. For exampleaddress(this). See doc here. But 267 (2+1+8+256) bits are enough for address_std.