Just last week oxwall introduced a new platform update (oxwall 1.5.2) but this platform did not go down well with oxwall users as too many complains regarding the cron job forced oxwall to release another platform update.
Oxwall 1.5.3?
You are right, this update will be called oxwall 1.5.3 and is really less than a regular platform update, infact it’s main reason is to correct issue with cron job encountered by some of the users.

From Oxwall Blog:

Following the last week’s release of Oxwall 1.5.2 we were alerted to an issue with cron job encountered by some of the users. Without postponing the resolution until a future major release, we have eliminated the problem with the unplanned minor Oxwall 1.5.3 update.

• Fix for cron job notification in Admin Area (even if a cron command is setup right).

Note that the fix does not affect any of the third-party projects, thus the developers in the community are not required to make any changes in their plugins due to this update.
Don’t forget to check out the full list of goodies (new theme, plugins and platform improvements) released with Oxwall 1.5.2. As always, bу sure to backup your sites before attempting this latest update.