Layers Updater doesn’t show up
Possible Answers to Your Question:
If you are using WordPress Multi-Site, you will only see update notifications in the Network Admin (My Sites > Themes)
If you have a child theme active, the updater will not alert you in the dashboard, however if you check the dash: Dashboard > Updates, you should see Layers listed under the Themes area if an update is available.
The latest version of Layers is listed at the top of the main site here, or in the sidebar of this forum.
Note that Child Themes do not use the Layers Updater, Themes purchased from Themeforest email you when an update is released there, so ensure you have notifications enabled.