Based on https://github.com/zendframework/zend-servicemanager/releases/tag/release-2.3.3 (commit 12c9a433b57ac32ba229109d90c44ce85e9bf10b in this repo)

- [6576: Custom barcode adapter wasn't being set in options](https://github.com/zendframework/zf2/pull/6576)
- [6664: Use is_file to check for an uploaded file](https://github.com/zendframework/zf2/pull/6664)

SECURITY UPDATES
^^^^^^^^^^^^^^^^

- **ZF2014-05:** Due to an issue that existed in PHP's LDAP extension, it is
  possible to perform an unauthenticated simple bind against a LDAP server by
  using a null byte for the password, regardless of whether or not the user
  normally requires a password. We have provided a patch in order to protect
  users of unpatched PHP versions (PHP 5.5 <= 5.5.11, PHP 5.4 <= 5.4.27, all
  versions of PHP 5.3 and below). If you use `Laminas\Ldap` and are on an affected
  version of PHP, we recommend upgrading immediately.
- **ZF2014-06:** A potential SQL injection vector existed when using a SQL
  Server adapter to manually quote values due to the fact that it was not
  escaping null bytes. Code was added to ensure null bytes are escaped, and
  thus mitigate the SQLi vector. We do not recommend manually quoting values,
  but if you do, and use the SQL Server adapter without PDO, we recommend
  upgrading immediately.