Options on Timing for Uptaking 18B

Summary

I'd like to know for cloud customers, if there are options as to when we can uptake 18B

Content

Hello,

With prior maintenance packs, we've had the option of pushing out the timeline for when we uptake it.  I believe we're supposed to uptake 18B in the October time frame.  Optimally, given our other priorities, we'd like to push it out until late February, if possible.  What are our options?  Do we have options?

Thank you,
Mark