Apple are about to disable SSL3 support in Apple Push Notification Service at Wednesday, October 29.
Developers experiencing issues with Provider Communication interface in the development environment consider immediate updating the code. After this date – Push notification using SSL3 will stop working.
Official apple notification is below
October 22, 2014
The Apple Push Notification service will be updated and changes to your servers may be required to remain compatible.
In order to protect our users against a recently discovered security issue with SSL version 3.0 the Apple Push Notification server will remove support for SSL 3.0 on Wednesday, October 29. Providers using only SSL 3.0 will need to support TLS as soon as possible to ensure the Apple Push Notification service continues to perform as expected. Providers that support both TLS and SSL 3.0 will not be affected and require no changes.
To check for compatibility, we have already disabled SSL 3.0 on the Provider Communication interface in the development environment only. Developers can immediately test in this development environment to make sure push notifications can be sent to applications.