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Dear Jaweed,
Here is some cool new feature which are not available before versions.
1-Dynamic Access Control
2-Metro-style application network isolation
3-Windows PowerShell cmdlets for Windows Firewall
4-Virtualized domain controller cloning
5-Virtualization supported
6-Active Directory Federation Services (AD FS)2.1 as a server role
7-Active Directory Domain Services claims in Active Directory Federation Services
8-Off-premises domain join
9-Active DirectoryBased Activation (AD BA)
10-Windows PowerShell History Viewer
11-Windows PowerShell for deploying Active Directory Rights Management Services
12-Enhancements in Active Directory Rights Management Services and SQL Server requirements
13-Integration with Dynamic Access Control scenarios
14-Improved installation experience with Server Manager
15-Windows PowerShell cmdlet tools
16-Active Directory Certificate Services role services on Server Core
17-Automatic renewal of certificates for non-domain joined computers
18-Enforcement of certificate renewal with same key
19-Support for international domain names
20-Increased security with default on certification authorities role service
21-Hyper-V Extensible Switch
22-Shared-nothing live migration
23-Live storage migration
24-Live Merging Snapshots
25-Non-Uniform Memory Access (NUMA) support
26-Runtime Memory Configuration
27-VHDX
28-Hyper-V Resource Metering
29-Virtual Fibre Channel
30-Hyper-V Replica
31-Simultaneous live migrations
32-Private virtual local area network (PVLAN)
33-Dynamic Host Configuration Protocol(DHCP) guard and router guard
34-Extension monitoring and extension uniqueness
35-Multiple extensions on same switch
36-Network virtualization
37-IP address rewrite
38-Generic routing encapsulation
39-Hyper-V Smart Paging
40-Runtime memory configuration
41-Quality of Service (QoS) minimum bandwidth
42-Application monitoring
43-Storage Spaces
44-Live storage migration
45-SMB Direct (RDMA) and SMB Multichannel
46-Offloaded Data Transfer (ODX)
47-SMB for workloads
48-Built in Microsoft iSCSI Software Target support
49-Multitenant high-density websites
50-Server Name Indicator (SNI)
51-Centralized SSL Certificate Management
52-NUMA-aware scalability
53-IIS CPU Throttling
54-Application initialization
55-Dynamic IP restrictions
56-WebSocket Protocol
57-Cross-premises application platform
58-Application and programming symmetry
59-Common development platform and tools
60-Applicationlayer connectivity and messaging
61-Single Root I/O Virtualization (SR-IOV) networking devices
& many more.........
Thanks for your question.
GUI for Recycle Bin Microsoft introduced the Active Directory Recycle Bin in Windows Server2008 R2, but it was limited by its Windows PowerShell-only exposure. This time it gets a GUI.
UI for Fine-Grained Password Policies Also gaining a GUI are fine-grained password policies.
Dynamic Access Control (DAC) Windows Server2008 R2 brought the File Classification Infrastructure (FCI). This version's DAC adds far greater functionality to the (optional) second layer of FCI resource authorization.
Windows PowerShell History Viewer You see the Windows PowerShell commands that correspond to actions you perform in the Active Directory Administrative Center UI.
Windows PowerShell Cmdlets for Active Directory Replication and Topology More cmdlets -- enough said.
Active Directory-Based Activation (ADBA) The good: ADBA eliminates the need for a Key Management Service server. The bad: Only forthcoming Windows8 computers can leverage ADBA. Seriously, Microsoft?
Flexible Authentication Secure Tunneling (FAST) The nickname for FAST is "Kerberos armoring," if that tells you anything. It isn't enabled by default and requires clients that support it.
Refreshed FeaturesNow let's move on to the merely improved bits:
Virtual Snapshot and Cloning Support Active Directory and hypervisor snapshots didn't mix before. Now they do, if your hypervisor supports VM Generation ID.
ADPREP Integrated into DC Promotion Can't recall the proper steps to promote a member server to a DC? No worries, it's in there.
Active Directory Federation Services (ADFS) Now In-Box Adding ADFS no longer requires a separate installation. ADFS also gains multiple improvements. Watch this space, because you'll be seeing and using more ADFS in the years to come.
Domain Join via DirectAccess One word: Nifty! Nine words: Computers can now be domain-joined over the Internet. You'll need DirectAccess first. Trust me: You'll want it.
Kerberos Constrained Delegation (KCD) Across Domains Another of those capabilities you've probably never used, but probably will in the future. KCD was first introduced in Windows Server2003. Now it can span domains.
Group Managed Service Accounts (GMSAs) MSAs in Windows Server2008 R2 made administering service accounts easier. GMSAs in this version extend their support to clustered and load-balanced services.
