Update: The monthly security release window for Drupal 8 and 7 core will take place on Monday, July 18, slightly in advance of the normal window that was previously scheduled for Wednesday. For more details, see the PSA for this release window.
There will be no bug fix or feature release on this date. The next window for a Drupal core patch (bug fix) release for all branches is Wednesday, August 03. The next scheduled minor (feature) release for Drupal 8 will be on Wednesday, October 5.
Drupal 6 is end-of-life and will not receive further security releases.
For more information on Drupal core release windows, see the documentation on release timing and security releases, and the discussion that led to this policy being implemented