“A summary of changes since 14.0-BETA5 includes:

1) A race condition in swap_pager_swapoff_object() had been fixed.

2) Various updates to the Linux KPI, 802.11, iwlwifi, and rtw88.

3) And other miscellaneous fixes.”

Direct download link of the amd64 boot only ISO: https://download.freebsd.org/releases/ISO-IMAGES/14.0/FreeBSD-14.0-RC1-amd64-bootonly.iso