📒 [v3 Maintenance]: Consolidate and Document Middleware Changes in v3

[ReneWerner87]

Maintenance Task Description

This issue focuses on capturing all the middleware changes in the v3 beta branch and updating the existing v2 documentation accordingly. It also includes creating a "What's New" section for each middleware, examples for their usage, and a migration guide when necessary.

Tasks

• Collect and list all changes for each middleware from the beta branch since the last update.
• Create a "What's New" markdown file in each middleware folder, detailing the updates. (for the release)
• Update the main documentation to reflect the changes in middleware APIs for v3.
• Supply examples that clearly demonstrate the middleware updates.
• Draft a migration guide for each middleware if there are significant changes affecting usage.

Expected Outcome

• A set of "What's New" markdown documents for middleware changes to inform release notes.
• Thoroughly updated documentation for all middleware reflecting the v3 changes.
• Practical examples and migration guides for users to smoothly transition to the new version.

Checklist:

• I have confirmed that this maintenance task is currently not being addressed.
• I understand that this task will be evaluated by the maintainers and prioritized accordingly.
• I am available to provide further information if needed.

[ReneWerner87]

done