Guideline on migrating AEM 6.4 to AEM 6.5

[#1]

We are planning to migrate from AEM 6.4 to AEM 6.5 with in-place upgrade. what are the key areas that we would need to give a focus during migration. Is there any guidance from adobe ?

[#2]

The official documentation for it is quite good [1].

[1] https://experienceleague.adobe.com/docs/experience-manager-65/deploying/upgrading/upgrade.html#upgra...