EnTagRec++: Software engineers share experiences with modern technologies using software information sites, such as Stack Overflow. These sites allow developers to label posted content, referred to as software objects, with short descriptions, known as tags. Tags help to improve the organization of questions and simplify the browsing of questions for users. However, tags assigned to objects tend to be noisy and some objects are not well tagged. 18% of the questions that were posted in 2015 on Stack Overflow needed tag re-editing after the initial assignment. Users still need to make lots of effort to improve the tags on such software information sites. To improve the quality of tags in software information sites, we propose EnTagRec++, which is an advanced version of our prior work EnTagRec. Different from EnTagRec, EnTagRec++not only integrate the historical tag assignments to software objects, but also leverage the information of users, and an initial set of tags that a user provides for tag recommendation.