When planning your upgrades, you should review the product versions you currently have installed and check to see if they have reached (or are nearing) their end of support. There are a number of product versions that are scheduled for End of support in 2016.
Refer to the Support Lifecycle page for details about End of support dates for your installed product versions and releases. The End of support (EOS) date listed is the last date on which IBM will deliver standard support services for a given version/release of a product.
Viewing the What are the IBM Product Lifecycle and EOS? video may help you better understand the stages of the IBM Product Lifecycle, including End of Support.