We are trying to upgrade from AEM 6.2 to AEM 6.5 for our platform, does anyone have API comparison list between 6.2 to 6.5.
You can refer to  to see the list of deprecated APIs in 6.5. Feel free to change the version number in the URL to see deprecated APIs in each version.
 Deprecated List (The Adobe AEM Quickstart and Web Application.)
Just go to the nexus repo and look at the JAR build with the JavaDocs and you can compare the API differences
Index of /groups/public/com/adobe/aem/uber-jar/6.2.0
Index of /groups/public/com/adobe/aem/uber-jar/18.104.22.168
It does not exist