  Recently, the Galactic magnetar SGR J1935+2154 has garnered attention due to
its emission of an extremely luminous radio burst, reminiscent of Fast Radio
Bursts (FRBs). SGR J1935+2154 is one of the most active magnetars, displaying
flaring events nearly every year, including outbursts as well as short and
intermediate bursts. Here, we present our results on the properties of the
persistent and bursting X-ray emission from SGR J1935+2154, during the initial
weeks following its outburst on October 10, 2022. The source was observed with
XMM-Newton and NuSTAR (quasi-)simultaneously during two epochs, separated by
$\sim$5 days. The persistent emission spectrum is well described by an absorbed
blackbody plus power-law model up to an energy of $\sim$25 keV. No significant
changes were observed in the blackbody temperature ($kT_{\rm BB}\sim$ 0.4 keV)
and emitting radius ($R_{\rm BB}\sim$ 1.9 km) between the two epochs. However,
we observed a slight variation in the power-law parameters. Moreover, we
detected X-ray pulsations in all the datasets and derived a spin period
derivative of $\dot{P} = 5.52(5) \times 10^{-11}$ ss. This is 3.8 times larger
than the value measured after the first recorded outburst in 2014.
Additionally, we performed quasi-simultaneous radio observations using three
25--32-m class radio telescopes for a total of 92.5 hr to search for FRB-like
radio bursts and pulsed emission. However, our analysis did not reveal any
radio bursts or periodic emission.
