Deprecated asset fields are now optional in responses

Broker API

The deprecated easy_to_borrow and maintenance_margin_requirement fields on the Asset schema are no longer marked required, so they may be omitted from responses. Both are scheduled for removal on 2026-09-22.

• Use borrow_status instead of easy_to_borrow.
• Use margin_requirement_long and margin_requirement_short instead of maintenance_margin_requirement.

Affected Endpoints

• GET /v1/assets
• GET /v1/assets/{symbol_or_asset_id}
• POST /v1/trading/accounts/{account_id}/watchlists
• GET /v1/trading/accounts/{account_id}/watchlists/{watchlist_id}
• POST /v1/trading/accounts/{account_id}/watchlists/{watchlist_id}
• PUT /v1/trading/accounts/{account_id}/watchlists/{watchlist_id}