10.1.2

🐛 Bug Fix

• Fix an issue where error messages related to duplicate props were displayed without a loc and were unclear rescript-lang/syntax#728

10.1.1

💥 Breaking Change

• Parse the attributes of labelled argument to the pattern attributes of argument instead of function. rescript-lang/syntax#722
• The prop names duplicated to keyword are not mangled automatically in JSX v4.
  • Use @as instead

🚀 New Feature

• Add support for empty inlined record literal {} for inlined records where all fields are optional #5900

🐛 Bug Fix

• Prevent inlining of async functions in additional cases #5860
• Revert to ubuntu-18.04 in CI to support Linux versions with older glibc #5868
• Fix build error where aliasing arguments to _ in the make function with JSX V4. rescript-lang/syntax#720
• Fix parsing of spread props as an expression in JSX V4 rescript-lang/syntax#721
• Fix dropping attributes from props in make function in JSX V4 rescript-lang/syntax#723

10.1.0

🐛 Bug Fix

• Fix issue where no error was reported when ? was used for non-optional fields. #5853
• Fix issue where optional fields in inline records were not supported and would cause type errors #5827

10.1.0-rc.5

🐛 Bug Fix

• Prevent inlining of async functions in last stage of the compiler when the functions are not exported (not in interface file or shadowed) #5790

10.1.0-rc.4

🚀 New Feature

• Support format check with rescript format -check. #5760

🐛 Bug Fix

• Fix issue where the last line of rescript format --help usage was being swallowed #5760
• Specialize the printing of the rhs of a record field assignment for optional values {x: ? e} rescript-lang/syntax#714

10.1.0-rc.3

🚀 New Feature

• Support the use of spread anywhere in list creation (e.g. list{...x, 1, ...y, ...z}). rescript-lang/syntax#692
• Add support for the argument of @react.component to set a props type from the outside. rescript-lang/syntax#699

🐛 Bug Fix

• Fix issue where the JSX key type is not an optional string rescript-lang/syntax#693
• Prevent inlining of async functions #5754
• Fix build error for JSX fragment without children rescript-lang/syntax#704
• Fix issue where async as an id cannot be used with application and labelled arguments rescript-lang/syntax#707
• Fix 5557: the exhaustive checking for char is incorrect during the unicode migration #5749
• Fix 5753: the comment for unicode char is inaccurate rescript-lang/syntax#709
• Treat await as almost-unary operator weaker than pipe so await foo->bar means await (foo->bar) rescript-lang/syntax#711

💅 Polish

• Change payload of Pconst_char from char to int rescript-lang/syntax#709

10.1.0-rc.2

🐛 Bug Fix

• Fix issue with changes not being applied with React Native's Metro bundler for files with warnings #5738
• Fix emitting unary minus for floats in case of negative constants #5737
• Fix issue where a spread ...x in non-last position would not be reported as syntax error rescript-lang/syntax#673
• Fix issue where the formatter would delete async in a function with labelled arguments.
• Fix several printing issues with async including an infinite loop rescript-lang/syntax#680
• Fix issue where certain JSX expressions would be formatted differenctly in compiler 10.1.0-rc.1 rescript-lang/syntax#675
• Fix issue where printing nested pipe discards await rescript-lang/syntax#687

10.1.0-rc.1

💥 Breaking Change

• Deprecate DOM element attributes in JsxDOM.domProps: begin_, end_, to_
  • Use begin, end, to instead.
• Emit an error when a @string or @int attribute is used in a V4 component #5724

🚀 New Feature

• Add extra variants for output filename suffixes in bsconfig.json: .bs.mjs and .bs.cjs are allowed #5631
• Safe promises: t-first Js.Promise2 bindings, and remove warning for nested promises #5709

🐛 Bug Fix

• Fix issue where uncurried async functions were emitted without async #5718
• Fix location issue in error messages with JSX V4 where the multiple props types are defined rescript-lang/syntax#655
• Fix location issue in make function in JSX V4 that breaks dead code elimination rescript-lang/syntax#660
• Fix parsing (hence pretty printing) of expressions with underscore _ and comments.
• Fix printing of comments inside JSX tag rescript-lang/syntax#664
• Fix issue where formatter erases tail comments inside JSX tag rescript-lang/syntax#663
• Fix issue where the JSX prop has type annotation of the first class module rescript-lang/syntax#666
• Fix issue where an empty record literal {} expected to have a non-record type would type check #5729

👓 Spec Compliance

• Functions with consecutive dots now print as multiple arrow functions like in JavaScript.

💅 Polish

• Add loading, aria-* DOM element attributes in JsxDOM.domProps: ariaCurrent, ariaInvalid, ariaAutocomplete, etc.
• Change the internal representation of props for the lowercase components to record. rescript-lang/syntax#665

10.1.0-alpha.2

🚀 New Feature

• Fix pretty printer where it would print doc comments on the same line as other attributes rescript-lang/syntax#642
• Propagte "jsx" configuration to dependencies #5661
• Add support for empty record literal {} for records where all fields are optional #5658
• Add support for empty record type (e.g. type empty = {}) #5658

🐛 Bug Fix

• Fix issue in formatting JSX spread props rescript-lang/syntax#644
• Fix location issue in error messages with JSX V4 where the body of the component is an application rescript-lang/syntax#633
• Fix printing of type declarations in error message where they would be considered recursive by default
• Fix issue where the printer would omit attributes for -> and |> rescript-lang/syntax#629
• Fix printing of optional fields in records #5654

💅 Polish

• Improvements and fixes for JSX V4. See guide https://github.com/rescript-lang/syntax/blob/master/cli/JSXV4.md
• Mention all missing fields in error message for records, not just one #5657

10.1.0-alpha.1

💥 Breaking Change

• Vendor genType, which does not need to be installed separately anymore. Only TypeScript back-end supported.
• Pipe -> does not support a code block on the right-hand side e.g. x->{ open A; get("test") }

🚀 New Feature

• Experimental support for for async/await #5537

• Make promise a built-in type #5650

• Initial support for JSX V4 including genType, still work in progress.

  • 💥 when V4 is activated, at most one component is allowed for each module.

• Add placeholder types for ES6 collections: Set, Map, WeakSet, and WeakMap #5630

🐛 Bug Fix

• Fix issue with arrays and creation of recursive values #5640
• Fix issue where characters such as newlines would be escaped in a template string expression #5638
• Fix issue where pipe -> processing eats up attributes #5581
• Fix issue where cancelling rescript build would leave the .bsb.lock file behind and block future builds

💅 Polish

• Print patterns in warnings using rescript printer #5492