Left X Dead Original is what it is, the original.
The only difference is that I added translation support and other fixes.

Left X Dead EDSHOT Edition removes all of the rp, menu, and convar code to make it shorter.
Despite having less features it fully supports L4D2.

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LXD Version "1.8.7-rev2" = Original Edition (L4D1)
LXD Version "1.8.7-rev5" = EDSHOT Edition (L4D1 & L4D2)