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Related Issue
BaseHook.sol
will likely be a required import to any hook contracts or protocols that are built on top of v4. In talking to developers who are likely to build these types of contracts and protocols, the Uniswap Foundation has surfaced a common concern around the restrictions enforced byBaseHook.sol
's GPL license.Description of changes
This PR changes the SPDX License Identifier in
BaseHook.sol
to MIT. It also edits the License section of the README to note the new exceptions to the GPL that governs most of the repository.