Outflow terminal velocity (Eq. (15), assuming ⟨ϵ_⋆⟩ = 0.015, f_M = 0.18, as appropriate for GN-z11) versus the UV magnitude for different values (colored numbers) of the log of the stellar mass in solar units. We note that v_∞ = 0 denotes the sub-Eddington regime in which no radiation-driven outflows are expected. The circles are the predicted values of v_∞ for the nine spectroscopically confirmed galaxies presently available at z > 10. Four of these galaxies (GN-z11, MACS0647-JD, Maisie, and GN-z10-0) as well as the photometric candidate GHZ2 are predicted to show outflow signatures. The data are taken from Curtis-Lake et al. (2023), Bunker et al. (2023), Arrabal Haro et al. (2023b), Harikane et al. (2023a), Hsiao et al. (2023), Castellano et al. (2022). Also shown is the lensed (μ = 4.7, Tokuoka et al. 2022) galaxy MACS1149-JD1 (Stiavelli et al. 2023, z = 9.11) specifically discussed in Sect. 6.