# What’s the new selector of multiHopFill?

**URL:** <https://forum.0xprotocol.org/t/what-s-the-new-selector-of-multihopfill/1091>\
**Category:** Core Protocol\
**Created:** [January 5, 2022, 1:33am UTC](https://forum.0xprotocol.org/t/what-s-the-new-selector-of-multihopfill/1091 "2022-01-05T01:33:43Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![ytrezq](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.0xprotocol.org/ytrezq/32/475_2.png) [@ytrezq](https://forum.0xprotocol.org/u/ytrezq)\
**Post date:** [January 5, 2022, 1:33am UTC](https://forum.0xprotocol.org/t/what-s-the-new-selector-of-multihopfill/1091/1 "2022-01-05T01:33:43Z")

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Hello, with the recent updates, many functions changed the number of arguments and thus selectors so that `0x21c184b6` is no longer recognized.

What’s the new selector for multiHopFill or \_multiHopFill ? as well as possible new implementation’s address ?

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**Author:** ![dayday101](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.0xprotocol.org/dayday101/32/622_2.png) [@dayday101](https://forum.0xprotocol.org/u/dayday101)\
**Post date:** [April 26, 2022, 5:24am UTC](https://forum.0xprotocol.org/t/what-s-the-new-selector-of-multihopfill/1091/2 "2022-04-26T05:24:22Z")

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[Some problems in usage of fillorkill - #2 by JoaoCampos89](https://forum.0xprotocol.org/t/some-problems-in-usage-of-fillorkill/1023/2) really