Update change log.

Author: SvenGroot

README.md

@@ -330,7 +330,7 @@ The core functionality for generating answer files is implemented in the
 
 To build Answer File Generator, make sure you have the following installed:
 
-- [Microsoft .Net 8.0 SDK](https://dotnet.microsoft.com/download) or later
+- [Microsoft .Net 9.0 SDK](https://dotnet.microsoft.com/download) or later
 
 To build the application, library, and tests, simply use the `dotnet build` command in the `src`
 directory. You can run the unit tests using `dotnet test`.

doc/ChangeLog.md

@@ -1,5 +1,11 @@
 # What's new in Answer File Generator
 
+## Answer File Generator 2.1 (TBD)
+
+- You can now [generate computer names containing a random number](../README.md#specifying-a-computer-name),
+  by using the `#` character in the name you provide.
+- Improved error messages for certain kinds of invalid JSON input.
+
 ## Answer File Generator 2.0 (2024-10-07)
 
 - The [`-DomainAccount`][] argument now allows you to specify users from different domains than the