Yesterday, I upgraded windows from 8.1 to 10, and minecraft was working properly. Today, when I go to play on a server, realm or single player world it crashes and the launcher says "Using Incremental CMS is deprecated and will likely be removed in a future release. The only thing I remember doing (which may be relevant) since yesterday, is that I installed windows updates.
Duplicate of MC-32606 – If you have not, please use the search function in the future, to see if your bug has already been submitted.
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