Connection between S/4HANA releases and HANA DB SPS

Hi All,

Can you please help me understanding maintenance relationship between S/4HANA and HANA 2.0 DB?

Does HANA DB maintenance support end-date differs if it is packaged in S/4HANA?

I think I understand HANA 2.0 DB maintenance cycle:

SPS01-03 ended

SPS04 April 2021

SPS05 June 2025 (long term supported SPS)

While

S/4HANA 1709 End of 2022 (it came with HANA 2.0 SPS01 if I am not mitaken)

S/4HANA 1809 End of 2023

S/4HANA 1909 End of 2024

May I or should I upgrade to HANA 2.0 SPS04 or 05 while still keep using S/4HANA 1709 until it is still supported?

Best regards,

Zoltan