v1.17.6

Bug fixes

• #2250 - synthetic-shadow: Fixes a bug with the innerText polyfill on elements that has no selectable text.

Improvements

• #2246 - template-compiler: Replace @babel/generator by astring for codegen. This change results in 15% performance improvement in compiler code evaluation time and 0 to 50% performance speedup in compilation time depending on the use case. The performance gain depends on the presence and size of the HTML template in the LWC module.

v1.17.5

Bug fixes

• #2241 - synthetic-shadow: Fixes an issue where the same event listener, used on different shadow roots or host elements, would be invoked with the first shadow root as context always.

Improvements

• #2243 - style-compiler: Removes restriction on usage of CSS custom properties in stylesheets. They can now be used with the caveat that it is dependent on your browser environment supporting it.
• #2247 - synthetic-shadow: Enforces shadow dom semantics on HTMLElement.innerText by default.

Internal

• #2239, #2240 - template-compiler: Performance improvements to the template-compiler.
• #2221 - babel-plugin-component: Moves component registration transform out of post process step. This is in preparation for @babel/core dependency update.

v1.17.4

Bug fixes

• #2233 - template-compiler: Fixes an issue where the template compiler incorrectly binds the iterator when multiple iterators are nested in the template.

Improvements

• #2234 - template-compiler: Removes iterator.next restriction, which speeds up the expression parsing by removing the need to traverse the AST.
• #2217 - style-compiler: allows ::slotted css selector.

Internal

• #2230 - template-compiler: Removes unreachable code for inline style parsing.
• #2232 - template-compiler: Removes unused id from internal state.
• #2235 - template-compiler: Use single traversal for scoped id generation

v1.17.3

Bug fixes

• #2227 - synthetic-shadow: Move restrictions for ShadowRoot.prototype.cloneNode and ShadowRoot.prototype. getElementById from @lwc/engine-core to @lwc/synthetic-shadow to allow usage of those methods outside of our synthetic shadow polyfill.
• #2228 - synthetic-shadow: Fix a bug where Event.prototype.composedPath returns an incorrect value when dealing with components using native Shadow DOM.
• #2195 - synthetic-shadow: Fix a bug for Event.prototype.composedPath where incorrect assumptions were being made about Text nodes and EventTarget.

v1.17.2

Internal

• #2225: Add back --force-publish flag to the release script. This forces lerna to generate a new version for all the packages regardless if the package is modified or not.

v1.17.1

Bug fixes

• #2197 - engine-core: Handle CSS custom property declared in style attribute in the template.

Internal

• #2215: Update bug report template.
• #2199 - template-compiler: Refactor logic to simplify attribute name handling.
• #2219 - babel-plugin-component: Remove post-processing logic for decorator validation.
• #2223: Remove unused lerna --force-publish option.
• #2222: Update dependencies.

v1.17.0

Jumped from v1.11.4 to v1.17.0 due to the discovery that v1.16.4 (now deprecated) was unintentionally published in the past. Setting a later version as latest should minimize the possibility of anyone unintentionally installing v1.16.4.

Bug fixes

• #2111 - synthetic-shadow: Add shadow semantics to the relatedTarget property of FocusEvent and MouseEvent. This is a potential breaking change because the relatedTarget will change from the original relatedTarget to a retargeted one, as defined in the specification.

Internal

• #2202: Update dependencies.

v1.11.4

Bug fixes

• #2192 - engine-core: Move restrictions for ShadowRoot.prototype.getSelection and ShadowRoot.prototype.elementsFromPoint from @lwc/engine-core to @lwc/synthetic-shadow to allow usage of those methods outside of our synthetic shadow polyfill. Those restrictions remain in @lwc/synthetic-shadow because polyfills for those methods have not been implemented.

v1.11.3

Bug fixes

• #2143 - synthetic-shadow: Delegate argument validation to the browser for EventTarget methods to avoid swallowing errors in the polyfill.

Improvements

• #2160 - shared: Make @lwc/shared tree-shakeable in order to produce smaller build artifacts.

v1.11.2

Bug fixes

• #2193 - synthetic-shadow: Validate whether the event target is an instance of Node in the composedPath() polyfill to avoid runtime exceptions due to incorrect assumptions about the event target.