J. Wenninger presents updates on solenoid compensation. Spin solenoid compensation bumps in LEP introduced strong coupling. Work has started by Y. Wu, agreeing with results from A. Blondel. 

J. Wenninger presents on FCC-ee solenoids. G. Oide comments that the non-local compensation is only used in LCC. Using a solenoid with fringe fields the spin rotation is 6 murad after one IP. One reason for no depolarization is possibly from dn/dgamma.

J. Wenninger on injecting polarized beams from the linac to the HEB via the transfer line. By slightly reducing the beam energy to 19.875 GeV about 90% polarization transport could be achieved. 

Z. Duan adds that the energy ramp through the HEB seem also promising.

Following a question by G. Wilkinson, J. Wenninger explains that C. Carli will start working on a dedicated polarization ring. 

R. Kieffer suggests to investigate in the operation scheme with polarized bunches. Furthermore, he adds that polarization moniting must be investigated. 

K. Oide suggests to include the earth curvature.

Z. Duan explains that for CEPC an electron source is foreseen, together with a damping ring, requiring 2T dipoles, for the positrons. 

J. Tamazirt presents updates on simulation studies on the impact of vertical polarization on fit parameters extraction and on monolithic sensors. SR is not included. 

G. Wilkinson points out that also a bias is found without deadzones. The bias is currenlty 1 MeV on the energy measurement of 45.6 GeV. Performing more complex simulations are planned in the future. R. Kieffer points out that significant computing power is required to perform these simulations. No crossing angle between the beam and the laser is included. While the current results would be already fine for RDP scans, G. Wilkinson warns that measuring polarization of colliding beams would require higher precision. 

A. Korsun introduces herself. During her PhD she will work on monochromatization optics with A. Faus-Golfe.

G. Wilkinson presents the status of the EPOL note and the final report.  The EPOL note will be uploaded to CDS and is currently not foreseen to be submitted to a Journal.