Its been awfully quiet since the last CU but the August 2014 updates (KB 2809243) are finally here.
Here is the official release note..

• Update for Standard or Enterprise Edition server (Front End Servers and Edge Servers)
  2937310 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013 (Front End Server and Edge Server)
• Update for Unified Communications Managed API 4.0, Core Runtime 64-bit
  2937311 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013, Unified Communications Managed API 4.0 Runtime
• Update for Web Components server
  2937297 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013, web components server
• Update for Core Components
  2937305 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013, core components
• Update for Administrative Tools
  2967486 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013, Administrative Tools
• Update for Web Conferencing server
  2937314 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013, Web Conferencing Server
• Update for Windows Fabric
  2967486 – August 2014 Cumulative Update 5.0.8308.733 for Lync Server 2013

The cumulative update resolves the following issues:

• 2976568 – Address book delta files are not generated in a Lync Server 2013 Enterprise Edition environment
• 2967626 – Error “creating procedure RtcResetAbAttributes” when you run “Install-CsDatabase” for rtcab database in Lync Server 2013
• 2967629 – Significant bandwidth usage increase by SIP traffic in a Lync Server 2013 environment
• 2967630 – Callee receives a missed call notification after answering a call on an IP telephone in a Lync Server 2013 environment
• 2979931 – Error “I can’t find the meeting with that number” when PSTN user dials in to conference in Lync Server 2013 environment
• 2978444 – Update for Lync Server 2013 to disable Lync Web App users’ ability to upload and show PPT in online meetings
• 2976906 – Incorrect time zone is displayed when you create a meeting by using Web Scheduler in a Lync Server 2013 environment
• 2967623 – Error “This content cannot be displayed” or blank webpage when you click a dial-in URL in a Lync Server 2013 environment
• 2967624 – HD video stutters in a Lync Server 2013 based video conference in Lync 2013
• 2967628 – Telephone numbers are missing in a contact card in a Lync Server 2013-based Lync mobile client
• 2967621 – Error 404 when Lync phones sign in to Lync Server 2013 front-end servers during SBS failure recovery
• 2967631 – Error “”DistributionGroupAddress” and “AgentsByUri” must be set.” when you migrate the RG service to Lync Server 2013
• 2983199 – “Limited functionality is available due to outage” in Lync client when Lync Server 2013 replication queue is full