December 31, 2009: This is the last day that VCP3s can become VCP4s by simply passing the VCP4 test.
Remember that if you fail a VCP exam, you're required to wait 7 days before taking the test again. Therefore, it’s a good idea to take the test soon, in case you fail the first attempt.
January 1, 2010: On this date, anyone who wants to become a VCP4 must not only pass the VCP4 test, but must also take an authorized vSphere 4 class.
Most people will need to take “vSphere 4: Install, Configure, Manage”, or “vSphere 4: Fast Track”, or “vSphere 4: Troubleshooting”. VCP3s have a fourth class option : “vSphere 4: What’s New”.
January 1, 2010: VMware will begin offering the VCP4 test in Japanese.
March 31, 2010: VMware will discontinue offering the VCP3 test, and no new VCP3 certifications will be granted.
Jon C. Hall from VMware:
Some of you may have already seen this posted or blogged about, but to make it official , VMware will be extending the availability of the VCP3 exam until March 31st, 2010. We have many customers still using the VI3 platform and as a result, we continue to offer classes. In light of this, we want to make the exam available a bit longer.
Please note that this does NOT change the deadline for the fast track path to obtain VCP4. If you are a VCP3 or are working on obtaining your VCP3 and want to avoid taking any additional classes to move to VCP4, be sure to obtain your VCP4 certification before 12/31!