The F# Language Specification
The F# Language Specification gives an in-depth technical explanation of the F# language constructs and required compiler behavior. It discusses topics such as lexical analysis, grammar, types including type inference algorithm, expressions, patterns and other.
F# 2.0
- The F# 2.0 Language Specification (final version, PDF) - The final version of the F# 2.0 language specification.
F# 3.0
- The F# 3.0 Language Specification (final version, PDF) - The final version of the F# 3.0 language specification.
F# 3.1
- The F# 3.1 Language Specification (final version, PDF) - The final version of the F# 3.1 language specification.
F# 4.0
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The F# 4.0 Language Specification (near-final version, PDF) - The near-final version of the F# 4.0 language specification.
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The RFCs for F# 4.0 provide primary documentation for the new features added.
F# 4.1
- The F# 4.1 Language Specification (latest, PDF), (latest, DOCX) - The latest, working version of the F# 4.1 language specification.
F# 4.1, 4.5, 4.6, 4.7, 5.0
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Since F# 4.1 new features have been documented through RFCs and additions to the F# Language Guide.
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The F# Language Specification (latest, PDF), (latest, DOCX) - The latest, working version of the F# language specification.
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The RFCs for F# 4.0
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The RFCs for F# 4.1
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The RFCs for F# 4.1b
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The RFCs for F# 4.5
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The RFCs for F# 4.6
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The RFCs for F# 4.7
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The RFCs for F# 5.0
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The RFCs for F# 6.0