Next long term support release following #saphana SPS5 will be SPS7. Planned release date is April 2023.
https://blogs.sap.com/2022/07/21/announcing-the-planned-release-of-sap-hana-2.0-sps-07/

Some “best practice” recommendations (you may check twitter entries from Jens Gleichmann) here:
– stay on SPS5 – current Rev. 59-04 if you want to have stable environment
– use SPS6 – current Rev. 63-00 only if you need to use SPS6 new functions – DON’t use at all Rev 60,61,62 !!! see corresponding SAP Notes!!!
– switch from SPS5 to SPS7 when SPS7 “golden revision” will be available in mid/H2 2023….