Skip to content
Switch branches/tags

Name already in use

A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
Go to file
Cannot retrieve contributors at this time
yip: <to be assigned>
title: <YIP title>
status: WIP
author: <a list of the author's or authors' name(s) and/or username(s), or name(s) and email(s), e.g. (use with the parentheses or triangular brackets): FirstName LastName (@GitHubUsername), FirstName LastName <>, FirstName (@GitHubUsername) and GitHubUsername (@GitHubUsername)>
discussions-to: <Create a new thread on and drop the link here>

created: <date created on, in ISO 8601 (yyyy-mm-dd) format>
requires (*optional): <YIP number(s)>
implementation (*optional): <Added if YIP passes>

This is the suggested template for new YIPs. Note that an YIP number will be assigned by an editor. When opening a pull request to submit your YIP, please use an abbreviated title in the filename, The title should be 44 characters or less.

Simple Summary

"If you can't explain it simply, you don't understand it well enough." Simply describe the outcome the proposed change intends to achieve. This should be non-technical and accessible to a casual community member.


A short (~200 word) description of the proposed change, the abstract should clearly describe the proposed change. This is what will be done if the YIP is implemented, not why it should be done or how it will be done. If the YIP proposes deploying a new contract, write, "we propose to deploy a new contract that will do x".


This is the problem statement. This is the why of the YIP. It should clearly explain why the current state of the protocol is inadequate. It is critical that you explain why the change is needed, if the YIP proposes changing how something is calculated, you must address why the current calculation is innaccurate or wrong. This is not the place to describe how the YIP will address the issue!



This is a high level overview of how the YIP will solve the problem. The overview should clearly describe how the new feature will be implemented.


This is where you explain the reasoning behind how you propose to solve the problem. Why did you propose to implement the change in this way, what were the considerations and trade-offs. The rationale fleshes out what motivated the design and why particular design decisions were made. It should describe alternate designs that were considered and related work. The rationale may also provide evidence of consensus within the community, and should discuss important objections or concerns raised during discussion.

Technical Specification

The technical specification should outline the public API of the changes proposed. That is, changes to any of the interfaces Yearn Finance currently exposes or the creations of new ones.

Test Cases

Test cases for an implementation are mandatory for YIPs but can be included with the implementation.


Copyright and related rights waived via CC0.