Source References: Use Doppler deployments as the contract source of truth for deployed addresses and revisions.

Liquidity Migration

When to use

• You are deciding where launch liquidity should migrate after price discovery
• You need protocol-consistent guidance across V2, V3, and V4 destinations
• You need a strict decision rule for when V3 migration is acceptable
• You are verifying Airlock.migrate(asset) behavior and migrator selection

Prerequisites

• Confirm launch posture (non-migrating vs migrable)
• Confirm asset/numeraire orientation and target pool assumptions
• Identify active liquidityMigrator in deployment configuration before execution

Core workflow

1. Choose migration target class:
   • Uniswap V2 (supported)
   • Uniswap V3 (only if Uni v4 is unavailable and custom fees are required)
   • Uniswap V4 (preferred)
2. Validate deployed migrator contract and permissions from Airlock wiring.
3. Simulate migration balances and fee handling (Airlock -> initializer exit -> migrator).
4. Execute migration and verify destination pool/locker state.

Option guidance

Target	Recommendation	Verification anchor
Uniswap V2	Supported compatibility path	migrator-uniswap-v2
Uniswap V3	Use only when Uni v4 is unavailable and custom fees are required	migrator-uniswap-v3
Uniswap V4	Preferred default	migrator-uniswap-v4

Quick facts

Item	Detail
Migration entrypoint	Airlock.migrate(asset)
Migration handoff	liquidityMigrator.migrate(...)
V4 split module	UniswapV4MigratorSplit + TopUpDistributor
V4 standard module	UniswapV4MulticurveMigrator

Failure modes

• Selecting V3 when Uni v4 is available
• Selecting V3 without an explicit custom-fee requirement
• Misconfigured liquidityMigrator address in deployment wiring
• Wrong token orientation leading to incorrect destination position state
• Assuming split-distribution behavior without split migrator configuration

References

• airlock
• migrator-uniswap-v2
• migrator-uniswap-v3
• migrator-uniswap-v4
• proceeds-split-migration
• pda-multicurve
• verification
• Source: doppler/src/Airlock.sol, doppler/src/migrators/UniswapV4MulticurveMigrator.sol, doppler/src/migrators/UniswapV4MigratorSplit.sol