4.22.1.0 release docs (#656)

* 4.22.1.0 release notes updates

Author: sureshanaparti

source/conf.py

@@ -26,7 +26,7 @@
 # The short X.Y version
 version = '4.22'
 # The full version, including alpha/beta/rc tags
-release = '4.22.0.0'
+release = '4.22.1.0'
 
 rst_epilog = """
 .. include:: /_global.rst 

source/releasenotes/about.rst

@@ -17,7 +17,33 @@
 What's New in |release|
 =======================
 
-Apache CloudStack |release| is a LTS release with 10 new features,
+Apache CloudStack |release| is a 4.22 LTS minor release with around 290 fixes
+and improvements since the 4.22.0.0 release. Some of the highlights include:
+
+• VMware-to-KVM migration fixes and improvements, including VDDK support and guest OS handling
+• GPU domain parsing fixes and PCI display controller support
+• Support configurable settings in the Proxmox Extension
+• Host VM power reporting improvements in Extensions
+• Support UEFI on KVM hosts by default with preconfigured default settings.
+• B&R enhancements, including NAS backup support with Linstor, timeout configuration support and other backup fixes
+• KVM Host HA improvements and heartbeat enhancements for SharedMountPoint storage
+• Support for creating volumes directly on a specified storage pool
+• Support KVM import and unmanage operations for SharedMountPoint pools
+• Support to list and query async jobs by resource
+• Better VM lifecycle handling, including reserved resource cleanup and improved expunge error reporting
+• Networking fixes and improvements for NSX, Routed VPCs, Load Balancer rules, Static Routes, and VPN DH groups
+• Incremental volume snapshot fixes and snapshot rollback reliability improvements for KVM
+• Storage plugins - Ceph, Linstor, PowerFlex related fixes and improvements
+• Some CKS related fixes and improvements
+• Several UI fixes and improvements
+
+The full list of new features can be found in the project release notes at
+https://docs.cloudstack.apache.org/en/4.22.1.0/releasenotes/changes.html
+
+What's in since 4.22.0.0
+========================
+
+Apache CloudStack 4.22.0.0 is the initial 4.22 LTS release with 10 new features,
 around 15 improvements and more than 140 bug fixes since the 4.21.0.0 release.
 Some of the highlights include: