Change record status: 
Project: 
Introduced in branch: 
8.5.x
Introduced in version: 
8.5.0
Description: 

The services user.private_tempstore and user.shared_tempstore are deprecated in favour of tempstore.private and tempstore.shared. Code that uses the User module services should be updated to use the new services from core.

Any typehints or documentation pointing to the following classes should be updated accordingly:
Drupal\user\PrivateTempStore -> Drupal\Core\TempStore\PrivateTempStore
Drupal\user\PrivateTempStoreFactory -> Drupal\Core\TempStore\PrivateTempStoreFactory
Drupal\user\SharedTempStore -> Drupal\Core\TempStore\SharedTempStore
Drupal\user\SharedTempStoreFactory -> Drupal\Core\TempStore\SharedTempStoreFactory
Drupal\user\TempStoreException -> Drupal\Core\TempStore\TempStoreException

In order to minimise disruption and preserve BC Drupal\user\TempStoreException is aliased to Drupal\Core\TempStore\TempStoreException if you use the deprecated services no code change is required.

If your site has customised the user.tempstore.expire container parameter this should be changed to tempstore.expire.

Impacts: 
Site builders, administrators, editors
Module developers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done