As far as I know I am not using development version of word press and I am getting emails regularly similar to the following:
WordPress site: http://bodysoulfitness.com.au/
The following themes failed to update:
* FAILED: Builder
BETA TESTING?
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This debugging email is sent when you are using a development version of WordPress.
If you think these failures might be due to a bug in WordPress, could you report it?
* Open a thread in the support forums: http://wordpress.org/support/forum/alphabeta
* Or, if you're comfortable writing a bug report: http://core.trac.wordpress.org/
Thanks! -- The WordPress Team
UPDATE LOG
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Builder
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Updating theme: Builder
Downloading update from https://s3.amazonaws.com/downloads.ithemes.com/products/themes/builder/Builder-5.0.16.zip?AWSAccessKeyId=AKIAI5UDI5LNTO2U5YBQ&Expires=1386166716&Signature=sLCpmXOw0gTtYArkgVTWL...
Download failed. Forbidden
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Does anyone know what the problem is?