Why does my portlet not have a version number after it is deployed?

Issue

• Deploying a .war portlet through the /liferay_home/deploy folder leads to the deployed portlet not having a version number in its file name.

Environment

• Liferay DXP 7.0 de-33+
• Liferay DXP 7.1

Resolution

• A fix implemented in de-33 addressed a potential issue were multiple copies of the same portlet could end up deployed at the same time. Part of this fix was to remove extensions to portlet file names, ensuring that only one copy of a portlet will be deployed.

Additional Information

• A workaround was found that results in a deployed .war portlet retaining a version number. The workaround is to add a copy of the version/snapshot file name extension to the file's name. An important note, as this workaround effectively bypasses the fix that was implemented, there is the potential for multiple copies of the same portlet, though of different versions, to be deployed on the same server. Please use this workaround at your discretion.
  
  Example:
  When de-33+ is installed and portlet-1.0.war is deployed it is renamed as portlet.war. Using the workaround the file can be renamed to portlet-1.0-1.0.war which when deployed is renamed to portlet-1.0.war.