Most terms for objects remain the same between 0.9 and 1.0. The major
difference is that the Server is now called Guild to stay in
line with Discord internally.
Discord.Net 1.0 is split into a core library and three different
implementations - Discord.Net.Core, Discord.Net.Rest,
Discord.Net.Rpc, and Discord.Net.WebSockets.
As a bot developer, you will only need to use Discord.Net.WebSockets,
but you should be aware of the differences between them.
Discord.Net.Core provides a set of interfaces that models Discord's
API. These interfaces are consistent throughout all implementations of
Discord.Net, and if you are writing an implementation-agnostic library
or addon, you can rely on the core interfaces to ensure that your
addon will run on all platforms.
Discord.Net.Rest provides a set of concrete classes to be used
strictly with the REST portion of Discord's API. Entities in this
implementation are prefixed with Rest (e.g. RestChannel).
Discord.Net.Rpc provides a set of concrete classes that are used
with Discord's RPC API. Entities in this implementation are prefixed
with Rpc (e.g. RpcChannel).
Discord.Net.WebSocket provides a set of concrete classes that are
used primarily with Discord's WebSocket API or entities that are kept
in cache. When developing bots, you will be using this implementation.
All entities are prefixed with Socket (e.g. SocketChannel).