Auditing of the new version

Answer:

The auditing techniques would be the same, you will still review the documentation, interview employees and observe processes. But, since the new version requires less documentation then the previous one, it is reasonable to assume that documentation review wouldn't provide the same results as with previous version of the standard. This means that most of the evidences will be gathered through interviewing employees and observing processes and activities.

This again depends on how you document your QMS, if it remains heavily documented like in previous version, the job of the auditors will be facilitated because they will have the most of the information on paper.

For more information about internal audit, see: Five Mai n Steps in ISO 9001 Internal Audit https://advisera.com/9001academy/knowledgebase/five-main-steps-in-iso-9001-internal-audit/