The current (June 2021) version of Liferay is 7.4 - Liferay 6.2 was released in 2013, with the last GA update in 2017. Consider upgrading asap. If you're still running Liferay 6.2 CE, at least have this security patch https://liferay.dev/blogs/-/blogs/security-patches-for-liferay-portal-6-2-7-0-and-7-1 installed. A lot more information is available in the main liferay tag.
The current (June 2021) Community Edition version of Liferay is "Liferay Portal 7.4 GA2" - the current enterprise supported version is "Liferay DXP 7.3".
Liferay Portal 6.2 (CE and EE) was released in 2013, with the last CE GA update in 2017. If you're still running this version: Consider upgrading asap. At least you definitely should have this security patch installed.
A lot more information is available in the main liferay tag.