send-community for bgp neighbors question

Hello all,

I am currently studying for my CCIE data center and something I have not had explained well is the differences between these following commands:

Neighbor 12.x.x.x remote-as xx

Update-source lo0

Address-family L2vpn evpn

Send-community

Send-community extended

Route-reflector client

and this:

Neighbor 12.x.x.x remote-as xx

Update-source Lo0

Address-family L2vpn evpn

Send-community both

Route-reflector client

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The question: What are the differences between adding both commands "send-community, send-community extended" and just "send-community both" - Does this do the same exact thing?

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Thank you in advance!