C# 9.0 was released on November 10, 2020.
@ Microsoft
C# Guide
C# Version History
What’s New In C# 9
Here are select books about C# 9.
2021-01-13
C# 9.0
Edition: 1
Series: Pocket Reference
Authors: Joseph Albahari and Ben Albahari
Publisher: O’Reilly
ISBN: 9781098101107
Type: Book
Format: Paperback
Price: US $25
On sale @ Amazon.
Shop @ O’Reilly.
2021-03-30
C# 9.0
Edition: 1
Series: In A Nutshell
Authors: Joseph Albahari and Ben Albahari
Publisher: O’Reilly
ISBN: 9781098100964
Type: Book
Format: Paperback
Price: US $80
On sale @ Amazon.
Shop @ O’Reilly.
Here are select books awaiting updates.
2019-11-26
Programming C# 8.0
Edition: 1
Series: Programming
Author: Ian Griffiths
Publisher: O’Reilly
ISBN: 9781492059812
Type: Book
Format: Paperback
Price: US $70
On sale @ Amazon.
Shop @ O’Reilly.
2020-10-07
Essential C# 8.0
Edition: 7
Series: Microsoft Technology
Author: Mark Michaelis
Publisher: Pearson
ISBN: 9780135972267
Type: Book
Format: Paperback
Price: US $60
On sale @ Amazon.
Shop @ Pearson.
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