I don't think there's an official EOL for Spark 2.4.x, but would expect another maintenance release in the first half of 2021 at least. I'd also guess it wouldn't be maintained by 2022.

On Wed, Nov 11, 2020 at 12:24 AM Netanel Malka <netanel246@gmail.com> wrote:
Hi folks,
Do you know about how long Spark will continue to maintain version 2.4?


Best regards,
Netanel Malka.