Samsung Galaxy A71 is now receiving April 2021 security patch update. As per the latest information, the update is currently rolling out in Hong Kong with firmware version A715FZHU4BUC1.
This time, the LTE variant of Galaxy A71 got the update ahead of its 5G variant. This is a minor security patch update and does not bring new features or UI changes apart from boosting the device security.
As already mentioned, the latest update for Galaxy A71 is currently rollout in Hong Kong but is expected to reach other regions by mid-April. You can manually check for the latest software updates on your Samsung smartphone by heading to Settings >> Software update.