Revision History Date - date of updates or date of release?

[ISO_Man]

Does the date in your revision history correspond to the date the the changes were made in the document or the date that you released it?

 

[blackholequasar]

Typically when it becomes effective - so when it's released! But I'm not sure if that is something defined by any particular standard. Maybe just a rule of thumb in the industry in general? I could be wrong!

 

[yodon]

The important thing to know / convey is when the update is effective. How you indicate / communicate that is up to you (and, of course, should be consistent). As @blackholequasar notes, it's pretty typical to communicate that in the revision history but there's no standards / regulatory defined mechanism. I've seen cases where the last approval date is considered the effective date and the revision history has no dates at all.