In my farm I installed the SharePoint 2013 directly, and I didn't had any older SP system in the farm. I am not sure why i get the following error message :
The following databases have versions that are older than the current SharePoint software, but are within the backwards compatible range: User Profile Service Application_SocialDB_20d62230387b4b18991716b7896792f4, Search_Service_Application_1_AnalyticsReportingStoreDB_db835a5a161e495590d0e283430221d9, Bdc_Service_DB_9d59366e2e4940119caa56c8792f028a, SP13, SettingsServiceSPDB, Search_Service_Application_1_CrawlStoreDB_38f3c806e741422b9d270a5611b43d3c, App_Management_18842f54-177d-410d-96d0-481d776ef9e3, AppMng_Service_DB_5cc2693c68d142c395ad51c187e1e0a8, CapricornSPAppService, SharePoint_AdminContent_292ef3b7-a8a4-4790-94f4-3e9d54a01376, WSS_Content, Search_Service_Application_1_DB_596d3871154a4f48811ecbd2db37119a, User Profile Service Application_ProfileDB_0cc698283c514281abe9d15559839b76, WSS_Logging, Search_Service_Application_1_LinksStoreDB_b1b76508974c4aa2a0f189773c0cffd2.
Every topic online that I was able to find talks about some step of migrating from 2010 to 2013 which isn't my case.
Why does this happen and how can I get rid of it? Remember that I did not upgrade from SP2010.