What’s New in 4.9

Version includes 180 pull requests and fixes more than 80 bugs since the 4.9.0 release.

The is part of the LTS 4.9.x releases. The 4.9 LTS branch is supported for 20 months, and will receives updates for first 14 months and only security updates in its last 6 months. The 4.9 LTS branch is supported till 1 June 2018.

A LOT changed in this release, so this is not a complete list, but here is a quick summary of some of the changes.


  • Fixes to ACLs, S2S VPN, Private Gateways, Redundant VRs and other optimizations
  • Nuage VSP SDN Plugin got a lot of improvements and some new features


  • MySQL connector changed
  • DB optimizations and improvements


  • Enabled fast snapshots for managed storage using XenServer
  • Fixes for some RBD issues
  • Fixes multiple Swift object store issues
  • Improved VMware disk implementation


  • Support for XenServer 7
  • Support for VMware vSphere 6.0, 6.5
  • Support for Ubuntu 16.04 as KVM host


  • Added user defined roles
  • Added configurable root volume size for KVM
  • Lots of localization improvements
  • Added CentOS 6.x guest OS mappings for VMware


  • Added Out-of-band power management for hosts (EG: IPMI, iLO, DRAC, etc.)


  • Use non-blocking SSL handshake in NioConnection/Link
  • Added memory utilization to listVirtualMachines
  • Multiple fixes related to usage


  • Higher quality releases due to better QA automation, testing and code reviewing

Build dependency

When building Apache CloudStack with noredist, it now require the file deps/vim25_60.jar available from vSphere SDK 6.0, VMware-vSphere-SDK-6.0.0-3634981.zip.