Lichen Exchange Testnet Package v0.5.221

Lichen Exchange Testnet Package v0.5.221

This release publishes the testnet-only exchange integration package for native LICN.

Source commit: c3fd61d
Signed binary rollback anchor: v0.5.221
Package scope: testnet-only until mainnet launch.

Included package asset: lichen-exchange-testnet-v0.5.221.tar.gz
Checksum asset: SHA256SUMS
Final readiness report asset: exchange-public-readiness-exchange-testnet-v0.5.221-final.json

Canonical public page: https://developers.lichen.network/exchange-integration
Status page: https://monitoring.lichen.network

Final readiness gate passed after publication:

python3 scripts/qa/exchange_public_readiness.py --scope testnet --status-approved --release-tag-selected

Mainnet is explicitly excluded until the mainnet launch exchange handoff closes and the public readiness gate passes with --scope full.