Recruiting and hiring practices for HR teams tend to change and evolve largely due to technology advances and changes in culture. In addition, there are generational differences that must be considered over time.
Each year, industry experts and others attempt to predict upcoming trends in various fields. This is no less true for HR. Many organizations have done studies and conducted surveys to elicit the collective insights of industry professionals - CHMOs, HR managers, recruiters, trainers, etc. - to determine what is actually or quite likely to be the next big changes.
In larger companies, HR staff are often responsible for a number of functions including the recruiting and hiring of new employees. While there are many aspects of these functions that are well established and never really change, there are other dynamics that do change or didn't exist previously.