The "Collection Tag version" property returns information on the version of the library used to collect the data.
In the case of collection via the Piano Analytics JS SDK, the version returned will be from 6.x.x onwards, whereas mobile versions return a value from 3.x.x onwards.
Any lower values, such as 5.x.x or 2.x.x, refer to a deprecated version of the tag (Smarttag and mobile SDK V2).
Please refer to the changelogs for further information on versioning:
- Piano Analytics changelogs are on GitHub under releases for each repository. For example here for JS: PA SDK changelogs
- Smarttag changelogs are available here: Smarttag changelogs.