C# 9, or C# version 9.0, was released with .NET 5.0 on November 10, 2020.
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C# Documentation
C# Language Reference
C# Programming Guide
C# Version History
What’s New In C# 9
Here are select books and videos about C# 9.
2021-01-13
C# 9.0 Pocket Reference
Edition: 1
Authors: Joseph Albahari and Ben Albahari
Publisher: O’Reilly
ISBN: 9781098101138
Errata: 2021-01-13
Type: Book
Format: Paperback
Price: US $25
On sale @ Amazon.
Shop @ O’Reilly.
2021-01-13
C# 9.0 Pocket Reference
Edition: 1
Authors: Joseph Albahari and Ben Albahari
Publisher: O’Reilly
ISBN: 9781098101107
Errata: 2021-01-13
Type: eBook
Format: Online
Price: US $22
On sale @ Amazon.
Shop @ eBooks.
2021-02-26
C# 9.0 In A Nutshell
Edition: 1
Author: Joseph Albahari
Publisher: O’Reilly
ISBN: 9781098100964
Errata: 2021-02-26
Type: Book
Format: Paperback
Price: US $80
On sale @ Amazon.
Shop @ O’Reilly.
2021-02-26
C# 9.0 In A Nutshell
Edition: 1
Author: Joseph Albahari
Publisher: O’Reilly
ISBN: 9781098100933
Errata: 2021-02-26
Type: eBook
Format: Online
Price: US $64
On sale @ Amazon.
Shop @ eBooks.
Here are indicators that rank programming languages.
PopularitY of Programming Language (PYPL)
The Importance Of Being Earnest (TIOBE)
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