- 4-IP Lattice for new layout PA31-1.0 with 91km circumference. 
- Phase advance of arc cells changed to 90/90. 
- 4 RF sections installed in 2.1km long straight sections.
More information in this presentation https://indico.cern.ch/event/1085318/contributions/4582685/subcontributions/356824/attachments/2354474/4018133/Optics_since_CDR_Oide_211129.pdf

- 2-IP Lattice for layout with 97km circumference. 
- Similar to the CDR lattice, but with small changes in the optics around the IP.
- previously referred to as 217