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On Wednesday, December 24, 2015, we released a new version of Apigee Edge for Private
Cloud.

> [!NOTE]
> **Note:** **Questions or issues?** Contact [Apigee Edge Support](https://docs.apigee.com/api-platform/troubleshoot/support).
>
> **Release notifications** : See [Get Apigee Edge release notifications](https://docs.apigee.com/release/get-release-notifications).
>
> See a list of all [Apigee Release
> Notes](https://docs.apigee.com/release/notes/apigee-release-notes).

## Installing this release

Previously, the install process for a .X release of Edge required you to do a "patch
install". For example, to install the 4.15.04.04 release, you had to install 4.15.04.00, and then
install every intermediate release up to 4.15.04.04. That meant you had to install:

- 4.15.04.00
- 4.15.04.01
- 4.15.04.02
- 4.15.04.03
- 4.15.04.04

As of this release, 4.15.07.03, you no longer have to install every intermediate release of
Edge. Instead, you only have to install 4.15.07.03. For example:

- **If you are a new Edge customer** : Install Edge 4.15.07.03 as described in the *Edge Install and Configuration Guide*.
- **If you are upgrading from Edge version 4.14.04.x or later** : Directly upgrade to version 4.15.07.03 as described in the upgrade procedure in the *Edge Install and
  Configuration Guide*.
- **If you are upgrading from Edge version 4.14.01.x**: You must first upgrade your installation to version 4.14.04.x, and then upgrade to version 4.15.07.03:

1. Download Edge 4.14.04.x, meaning the latest version of 4.14.04.x, and upgrade to 4.14.04.x.
2. Download Edge 4.15.07.03 and upgrade from version 4.14.04.x to 4.15.07.03.

- **If you are upgrading from Edge version 4.22.6.x or earlier** : Contact [Apigee Edge Support](https://docs.apigee.com/api-platform/troubleshoot/support).

## Support added for RedHat, CentOS, and Oracle
6.7

This release adds support for RedHat Enterprise Linux version 6.7, CentOS version 6.7, and
Oracle Linux version 6.7.

For a complete list of system requirements, see [Supported software and supported versions](https://docs.apigee.com/release/supported-software).

## Bugs fixed

The following bugs are fixed in this release.

| Issue ID | Description |
|---|---|
| APIRT-1600 | **ConcurrentModificationException in Router logs** |
| APIRT-1734 | **Zero downtime resource file updates at org/env level** |
| APIRT-1820 | **Intermittent latency (\> 1%) in 4.15.04 Private Cloud environment** |
| APIRT-2159 | **Add message_id to the logging prefix** |
| APIRT-2160 | **Exclude the SSL handshake from request_processing_latency in analytics data** |
| AXAPP-1882 | **Consumer watcher thread connects to wrong queue in active/active deployment** |
| AXAPP-1946 | **Data moves to parent fact table instead of child fact table when in timezone other than UTC** |
| MGMT-1590 | **Fixed a security vulnerability** |
| MGMT-1662 | **Deployment fails during release** |
| MGMT-2361 | **Deployment of proxies fails with RPCException: Call timed out** |
| MGMT-2397 | **Code view is not parsing end of line characters correctly** |
| MGMT-2466 | **Cluster check against Message Processor shows non-reachable Router as CONNECTED member** |
| OPDK-1981 | **backup-cassandra.sh does not backup the system keyspace** |
| OPDK-1982 | **apigee-upgrade.sh needs to check Cassandra SSTable version before upgrade** |

## Deprecations

| API | Description |
|---|---|
| QPID queue check | **You can no longer use an API to check QPID queues** You can no longer check for queues that are created on the QPID Server by issuing the following CURL commands: ``` curl http:// <qpid_IP>:8083/v1/servers/self/queues ``` That API has been deprecated. |

## Open Issues

This release contains the following open issues:

| Issue ID | Description |
|---|---|
| OPDK-2343 | **Properties files modified during upgrade** Several properties files can be overridden during upgrade. The list of files includes: - Management Server: /\<install-dir\>/apigee4/conf/apigee/management-server/security.properies - ?Edge UI: /\<install-dir\>/apigee4/conf/ui/apigee-base.conf - ?Message Processor: /\<install-dir\>/apigee4/conf/apigee/message-processor/http.properties - ?Router: /\<install-dir\>/apigee4/conf/apigee/router/system.properties Ensure that you back up any properties files that you have modified before performing an upgrade. |