Samsung has started rolling out the April 2024 software update to Galaxy Tab A8. The latest update brings the current security patch and the latest firmware version is DXD5 (ending build numbers).
For your information, this software update for Galaxy Tab A8 is rolling out in Korea and Europe. April 2024 security patch fixes a few dozen security vulnerabilities discovered in the previous software versions.
To update, open the Settings app, navigate to Software update, and tap Download and install.