Hello! 
This is my first forum post,
I was looking around for a way to check if a game’s server was up to date and was unable to find one. So I made my own and I would like to share it with all of you as I feel that this should not be as hard to find as it was.
https://www.roblox.com/library/9869314549/
The module is parented to a sever script that demonstrates the use of this module
Lastest edit removed the need for http requests
local m = {}
--Made by sakari119 // 91144065
--June 10th 2022
local upDateTime = 0
--returns true / false
function m:CheckIfUpToDate()
local uptodate = nil
local state,err = pcall(function()
local asset = game:GetService("MarketplaceService"):GetProductInfo(game.PlaceId)
local update_stamp = tostring(asset.Updated)
upDateTime = ConvertTimeStampToUnix(update_stamp)
uptodate = os.time() - upDateTime > time()
end)
if not state then
warn("Update checker:",err)
end
return uptodate
end
--returns time in unix seconds
-- use os.time() - m:GetVersionAge() to get time since update
function m:GetVersionAge()
return os.time() - upDateTime
end
--Gets time when update was made
function m:GetVersionTime()
return upDateTime
end
--Powered by lua magic
function ConvertTimeStampToUnix(time_stamp)
local p="(%d+)-(%d+)-(%d+)T(%d+):(%d+):(%d+)"
local year,month,day,hour,min,sec=time_stamp:match(p)
return os.time({day=day,month=month,year=year,hour=hour,min=min,sec=sec})
end
return m