2 Release Notes 5 2 New language features 7 3 Mul�-threading changes 9 4 Language changes 11 5 Command-line op�on changes 13 6 New library func�ons 15 7 Standard library changes 17 LinearAlgebra prevfloat(::BigFloat, n::Integer) methods have been added (#31310). • Support for Unicode 12.0.0 (#31561). 7 Chapter 3 Mul�-threading changes • The Condition type now has a thread-safe replacement, accessed been added for currying, similar to the exis�ng ==(x) and isequal(x) methods (#30915). 15 Chapter 7 Standard library changes • The extrema func�on nowaccepts a func�on argument in the same manneras

v1.2 Release Notes 5 2 New language features 7 3 Language changes 9 4 Mul�-threading changes 11 5 Build system changes 13 6 New library func�ons 15 7 Standard library changes 17 LinearAlgebra . constructors (#30577). • Support for Unicode 12.0.0 (#31561). • Added (\star) as unary operator (#31604). 7 Chapter 3 Language changes • Empty entries in JULIA_DEPOT_PATH are now expanded to default depot versions of the func�ons, similar to the exis�ng ==(x) and isequal(x) methods (#30915). 15 Chapter 7 Standard library changes • Enum now behaves like a scalar when used in broadcas�ng (#30670). • If

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 7 Strings 40 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7 Strings 39 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7 Strings 39 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7 Strings 39 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7 Strings 39 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7 Strings 39 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3.2 Stylistic Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 7 Strings 39 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 6 CHAPTER 3. VARIABLES 7 julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and several other Julia editing

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Variables 7 3.1 Allowed Variable Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rational Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 7 Strings 43 7.1 Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . julia> UniversalDeclarationOfHumanRightsStart = "" "" Unicode names (in UTF-8 encoding) are allowed: 7 8 CHAPTER 3. VARIABLES julia> δ = 0.00001 1.0e-5 julia> = "Hello" "Hello" In the Julia REPL and