grfTill
en
EN
pl
PL

Template indicating the supported GRF version.

Version ≤ 6 {{pl/Development/NewGRF/grfTill|6}} GRFv≤6
Version 7 only {{pl/Development/NewGRF/grfTill|7}} GRFv≤7
Version ≥ 8 {{pl/Development/NewGRF/grfTill|8}} GRFv≤8

Things valid in all GRF versions don't need any special indication.