# FA2.1 / FA3 - It's time

**URL:** https://forum.tezosagora.org/t/fa2-1-fa3-its-time/3704
**Category:** TZIP
**Created:** [September 25, 2021, 3:15pm UTC](https://forum.tezosagora.org/t/fa2-1-fa3-its-time/3704 "2021-09-25T15:15:07Z")
**Posts on this page:** 1
**Showing post:** 38

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### Author: ![LucasF](https://forum.tezosagora.org/letter_avatar_proxy/v4/letter/l/3e96dc/32.png) [@LucasF](https://forum.tezosagora.org/u/LucasF)
#### Post date: [October 3, 2022, 2:44pm UTC](https://forum.tezosagora.org/t/fa2-1-fa3-its-time/3704/38 "2022-10-03T14:44:19Z")

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We have worked on a first draft for the specification of the FA2 update: [FA2.1 - HackMD](https://hackmd.io/eOQdbL1MRlW62M6l6Tjp1Q)

The goal of the FA2.1 extension is to include new protocol features while remaining fully compatible with current applications that rely on the FA2 standard.

Events are a means to solve discoverability problems encountered by indexers, i.e. to know when a token is transferred especially outside the specified transfer entrypoint (mint, burn, etc…).

On-chain views are a means for smart contracts to share information easily. Callback views are kept for compatibility with already deployed contracts.

Tickets are a way to materialize tokens outside of smart contracts. They can be transferred without calling the creator contract and affecting its status. Tezos rollups rely on tickets for representing Layer 1 assets on Layer 2.

Additionally, finite allowance, enabling a user to grant permission to spend a fixed amount of tokens, is introduced (based on the FA1.2 scheme).

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