The latest version 4.9.2.1 for both the apps comes without a changelog and we think these may be minor fixes or compatibility update, before Lumia Camera 5 arrives with Lumia Denim firmware.
1Shot Camera app has again seen an update and has a changlog to show off too.
* Added explicit settings for locking Focus / Exposure / White Balance
* Added Location Services capability for auto geo tagging
* Added location tab with privacy policy for location capability