Summary
The Performer Suite supports all SAP BW releases that SAP itself currently supports with its Mainstream Maintenance.
You can find an overview of their Key Dates here:
https://www.sap.com/documents/2019/02/1ca4c940-3a7d-0010-87a3-c30de2ffd8ff.html
Which SAP BW-Versions are supported?
Netweaver 7.5
SAP BW/4HANA 2.0 (v19.3+)
SAP BW/4HANA 2021 (v22.1+)
Which SAP BW-Versions are no longer supported?
NetWeaver 7.0x, 7.3, 7.31 and 7.40
SAP BPC 11.0
SAP BW/4HANA 1.0