Long-term temporal evolution of burst properties for J2237+2828. (a) Burst rate (hr⁻¹) derived from seven observing sessions between 2023 and 2025. The error bars represent Poissonian uncertainties. (b) RM for reliable detections, showing long-term stability around −93 rad m⁻². (c) Pulse fluence, highlighting the large dynamic range and the cluster of high-energy events during the active epoch at MJD 60582. (d) Fractional linear polarization (L/I). (e) Pulse width (W₅₀), showing consistent dispersion across all epochs.