I have the version when greed came out saved in my computer and I can still do things like filth clip and stuff like that But I don't know if that's allowed in runs I also have the october 9b patch and the Saw Your Heart before they nerfed the alt nailgun
but is it allowed to downpatch through patches of a single listed version? (i.e, downpatching to prenerf sawgun although both versions are listed as one in the version list)
It is fine to use older versions of the game just keep in mind that archived boards are no longer open because I have them archived on my end, and when the game comes out of EA all runs done on EA and earlier will no longer be valid so it is recommended that you play on the current version of the game for ILs. Also when wrath comes out you will obviously have to update to do runs with that.
The Re-poll has arrived, many pointed out with the last poll we ran that the update would change a lot of the out of bounds clips and those should be re-done. Since then some different clips have been found and others have changed, even a new universal clip was found so we believe it's time to redo