## Answer Unfortunately, you cannot downgrade the version of Pleasanter. --- ## Summary Unfortunately, you cannot downgrade the version of Pleasanter. It is possible to downgrade the environment by re-setting up using the assets of the old version, but the data structure migrated by the "[Version Upgrade](/en/manual/release-notes-core)" cannot be restored. Therefore, please do not downgrade. ## Related Information <div id="ManualList"><ul><li><a href="/en/manual/release-notes-core">Pleasanter Latest Update Information </a><span>10.01.2024 up</span></li></ul></article></div><input id="SearchTextHidden" type="hidden" value="" />