  We present an enhanced version of the publicly-available Stripe 82X catalog
(S82-XL), featuring a comprehensive set of 22,737 unique X-ray point sources
identified with a significance $\gtrsim 4\sigma$. This catalog is four times
larger than the original Stripe 82X catalog, by including additional archival
data from the Chandra and XMM-Newton telescopes. Now covering $\sim54.8$
deg$^2$ of non-overlapping sky area, the S82-XL catalog roughly doubles the
area and depth of the original catalog, with limiting fluxes (half-area fluxes)
of 3.4$\times 10^{-16}$ (2.4$\times 10^{-15}$), 2.9$\times 10^{-15}$
(1.5$\times 10^{-14}$), and 1.4$\times 10^{-15}$ (9.5$\times 10^{-15}$) erg
s$^{-1}$ cm$^{-2}$ across the soft (0.5-2 keV), hard (2-10 keV), and full
(0.5-10 keV) bands, respectively. S82-XL occupies a unique region of flux-area
parameter space compared to other X-ray surveys, identifying sources with
rest-frame luminosities from $1.2\times 10^{38}$ to $1.6\times 10^{47}$ erg
s$^{-1}$ in the 2-10 keV band (median X-ray luminosity, $7.2\times 10^{43}$ erg
s$^{-1}$), and spectroscopic redshifts up to $z\sim6$. By using hardness
ratios, we derived Active Galactic Nuclei (AGNs) obscuration obtaining a median
value of $N_H=21.6_{-1.6}^{+1.0}$, and an overall, obscured fraction ($\log
N_H/\mathrm{cm^{-2}}>22$) of $\sim 36.9\%$. S82-XL serves as a benchmark in
X-ray surveys and, with its extensive multiwavelength data, is especially
valuable for comprehensive studies of luminous AGNs.
