@rajupenmetsa
Because Apple made changes that meant VMware had to produce a new version of Fusion.
There is now a Player license of Fusion 12 which is free for non-commercial use - it has less functionality than the Pro license but gives you an alternative to upgrading your 11 license to 12 Pro.
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Although I am a VMware employee I contribute to VMware Communities voluntarily (ie. not in any official capacity)
VMware Training & Certification blog