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These are the V1 contracts. They are deprecated and only kept here for reference and to support trading of existing V1 tokens. For new integrations, use the V2 contracts.

TokenFactory (V1)

The original launch contract. Used an exponential bonding curve and finalized to Uniswap V2. Tokens launched on this contract still trade through their original Uniswap V2 pair after they bonded.

Early V4 Hook (transitional)

A short lived Uniswap V4 hook that shipped between V1 and the current V2. A small number of tokens launched here. It is still queryable. For docs purposes this is grouped under V1 since it predates the current V2 hook.

TokenUpdate

Used to update metadata on V1 tokens.

Uniswap V2 Router (used by V1 finalization)

V1 Constants

These are the constants that V1 launches used.

Migration

There is no on chain migration path from V1 to V2. V1 tokens stay on V1. New tokens are V2 by default.