Management Reporter CU15 (Release 2.12.15000.56) was released on April 22, 2016 and is available from Customer Source. This Cumulative Update contains important updates for performance and stability, but also has some important prerequisite changes. You can review information about this update on Microsoft's Blog.
As of 11/1/2016, Microsoft has released four hot fixes for Management Reporter CU15. These hot fixes relate to reports yielding incorrect balances when using wildcards or ranges of dimensions and when using multiple dimensions - all three very common practices when building reports in Management Reporter. The fourth hot fix - released on 9/30/2016 - is a cumulative hot fix containing fixes 1, 2, 3 and 4.
Here are details from Microsoft's PartnerSource and CustomerSource sites:
Hotfix 3749486-3751976 Released 5/12/2016
This hotfix addresses an issue where you can receive incorrect numbers when using a wildcard or ranges in your report. It also addresses an issue where change tracking only gets enabled on the first Microsoft Dynamics GP company database.
Hotfix 378213 Released 5/31/2016
This hotfix adds support for the V2 of SPED ECF for Brazil customers using Microsoft Dynamics AX 2012 R3. A new report template will be available for download via LCS.
Hotfix 3757498 Released 7/8/2016
This hotfix addresses issues related to incorrect numbers when using multiple dimension values. It also addresses a number of issues for Microsoft Dynamics GP customers.
Hotfix 3780433 Released 9/30/16
This is a cumulative hotfix containing hotfixes 1-3. It also contains two integration fixes for Dynamics AX, a fix for using MainAccount with a dimension value set in the reporting tree, and fixes showing the customized autotext date header without day of week in the web viewer.