Don’t assume you’re safe after upgrading.
You’re going to want to explicitly destroy your macaroons and macaroons.db and recreate them fresh.This also applies to auth mechanisms for other LN backends.
Also, if you generated a hot on-chain wallet in BTCPay you want to move those funds.
quoting🚨🚨 URGENT: BTCPAYSERVER 🚨🚨
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There is a critical vulnerability that is being actively exploited on BTCPay Server which can lead to loss of funds.
Update your BTCPayServer to to 2.4.2 or turn off your BTCPayServer now.