DK-SI-AGF014E3ES 100G Ethernet support

The support page for the currently available Agilex SoC devkit says regarding the QSFP28 port

This port supports 2x56G, 4x10G and 4x25G application cases.

Conspicuously absent is 100G support. Does this kit support 100G, and on the QSFP28 port?

Or is it simply that 4x25G implies 100G?

Other support pages list an E2ES version of the kit. Do these actually exist, and if the E3ES doesn't support 100G does the E2ES?