SPRINGFIELD — A government agency cannot rely on the new version of Illinois’ Freedom of Information Act to deny requests that were eligible when filed, the state’s high court decided Thursday.In a 26-page unanimous opinion authored by Justice Rita B. Garman, the Supreme Court ruled the changes to FOIA effective in 2015 were substantive and, therefore, the added exemptions cannot be retroactively applied to records requests filed under the old version of the act.The court issued its ruling in a …