Lwc Versions Save

What's Changed

• chore(scripts): separate license generation from build script by @wjhsf in https://github.com/salesforce/lwc/pull/4191
• test: fix @lwc/engine-server circular dependency warning by @jmsjtu in https://github.com/salesforce/lwc/pull/4194
• test: fix @lwc/engine-server test fixtures for attribute ordering by @jmsjtu in https://github.com/salesforce/lwc/pull/4193
• chore: release v6.6.2 by @ekashida in https://github.com/salesforce/lwc/pull/4197

Full Changelog: https://github.com/salesforce/lwc/compare/v6.6.1...v6.6.2

What's Changed

• chore(nucleus): bump memory for release job by @nolanlawson in https://github.com/salesforce/lwc/pull/4183
• build(deps): bump the theoretically-non-breaking group with 7 updates by @dependabot in https://github.com/salesforce/lwc/pull/4182
• perf: avoid using a stack in traverseAndSetElements by @nolanlawson in https://github.com/salesforce/lwc/pull/4181
• fix: assert we do not traverse past the root by @nolanlawson in https://github.com/salesforce/lwc/pull/4184
• test(synthetic-shadow): add more tests/benchmarks by @nolanlawson in https://github.com/salesforce/lwc/pull/4187
• chore: release v6.6.1 by @nolanlawson in https://github.com/salesforce/lwc/pull/4189
• chore: release v6.6.1 by @nolanlawson in https://github.com/salesforce/lwc/pull/4190

Full Changelog: https://github.com/salesforce/lwc/compare/v6.6.0...v6.6.1

What's Changed

• Fix: lwc compiler errors on .jsx/.tsx files by @SaurabhMulay999 in https://github.com/salesforce/lwc/pull/4164
• feat: new compiler targeting SSR by @divmain in https://github.com/salesforce/lwc/pull/3880
• chore(deps): remove unused @types/source-map by @wjhsf in https://github.com/salesforce/lwc/pull/4172
• feat(playground): add important features to playground @W-15545976 by @wjhsf in https://github.com/salesforce/lwc/pull/4161
• chore: commit missing LICENSE files by @nolanlawson in https://github.com/salesforce/lwc/pull/4176
• chore: v6.6.0 by @ravijayaramappa in https://github.com/salesforce/lwc/pull/4179
• chore: release v6.6.0 by @ravijayaramappa in https://github.com/salesforce/lwc/pull/4180

Full Changelog: https://github.com/salesforce/lwc/compare/v6.5.3...v6.6.0

What's Changed

• feat: create script to facilitate accepting external contributions @W-15482802 by @wjhsf in https://github.com/salesforce/lwc/pull/4146
• chore(eslint): remove jsdoc plugin by @wjhsf in https://github.com/salesforce/lwc/pull/4159
• fix(engine-core): unrender stylesheets in HMR by @nolanlawson in https://github.com/salesforce/lwc/pull/4156
• fix(engine-core): fix HMR for static stylesheets by @nolanlawson in https://github.com/salesforce/lwc/pull/4163
• test: test swapStyle() on CSS library by @nolanlawson in https://github.com/salesforce/lwc/pull/4162
• build(deps-dev): bump the theoretically-non-breaking group with 13 updates by @dependabot in https://github.com/salesforce/lwc/pull/4165
• chore: v6.5.3 by @ravijayaramappa in https://github.com/salesforce/lwc/pull/4167
• chore: v6.5.3 by @ravijayaramappa in https://github.com/salesforce/lwc/pull/4168

Full Changelog: https://github.com/salesforce/lwc/compare/v6.5.2...v6.5.3

What's Changed

• fix(types): properly type check unbound array methods @W-15336947 by @wjhsf in https://github.com/salesforce/lwc/pull/4101
• build(deps-dev): bump the theoretically-non-breaking group with 9 updates by @dependabot in https://github.com/salesforce/lwc/pull/4148
• feat: exports HMR stubs from engine-server by @rax-it in https://github.com/salesforce/lwc/pull/4152
• chore: add Winter 25 API version, rebalance Karma tests by @nolanlawson in https://github.com/salesforce/lwc/pull/4043
• chore: release v6.5.2 by @rax-it in https://github.com/salesforce/lwc/pull/4157
• chore: release v6.5.2 by @rax-it in https://github.com/salesforce/lwc/pull/4158

Full Changelog: https://github.com/salesforce/lwc/compare/v6.5.1...v6.5.2

What's Changed

• chore: update non-breaking dependencies by @nolanlawson in https://github.com/salesforce/lwc/pull/4127
• perf(engine-dom): bring back BaseUpgradableConstructor by @nolanlawson in https://github.com/salesforce/lwc/pull/4116
• chore: configure dependabot @W-15450855 by @wjhsf in https://github.com/salesforce/lwc/pull/4130
• build(deps): bump tar from 6.2.0 to 6.2.1 by @dependabot in https://github.com/salesforce/lwc/pull/4135
• build(deps-dev): bump nx from 17.2.6 to 18.2.4 by @dependabot in https://github.com/salesforce/lwc/pull/4139
• perf(engine-core): avoid Array#splice in mutation tracking by @nolanlawson in https://github.com/salesforce/lwc/pull/4129
• chore(template-compiler): update acorn and fix its types by @nolanlawson in https://github.com/salesforce/lwc/pull/4132
• chore: nodejs v20 by @ekashida in https://github.com/salesforce/lwc/pull/4131
• build(deps-dev): bump eslint-plugin-jest from 27.9.0 to 28.2.0 by @dependabot in https://github.com/salesforce/lwc/pull/4138
• build(deps): bump the theoretically-non-breaking group with 4 updates by @dependabot in https://github.com/salesforce/lwc/pull/4137
• chore(dependabot): pin tachometer version by @nolanlawson in https://github.com/salesforce/lwc/pull/4141
• chore: generate proper license files by @nolanlawson in https://github.com/salesforce/lwc/pull/4134
• chore: update estree-walker to v3 by @nolanlawson in https://github.com/salesforce/lwc/pull/4128
• chore: release v6.5.1 by @nolanlawson in https://github.com/salesforce/lwc/pull/4143
• chore: release v6.5.1 by @nolanlawson in https://github.com/salesforce/lwc/pull/4144

Full Changelog: https://github.com/salesforce/lwc/compare/v6.5.0...v6.5.1

What's Changed

• chore: prettier everything! by @wjhsf in https://github.com/salesforce/lwc/pull/4114
• chore(nucleus): bump memory limit by @nolanlawson in https://github.com/salesforce/lwc/pull/4120
• chore: summer24 CLCO by @jmsjtu in https://github.com/salesforce/lwc/pull/4119
• chore: release v6.5.0 CLCO summer24 by @jmsjtu in https://github.com/salesforce/lwc/pull/4121

Full Changelog: https://github.com/salesforce/lwc/compare/v6.4.1...v6.5.0

What's Changed

• fix: move UpgradableConstructor back into createUpgradableConstructor by @jmsjtu in https://github.com/salesforce/lwc/pull/4110

Full Changelog: https://github.com/salesforce/lwc/compare/v6.4.0...v6.4.1

Observable changes

HTML elements with class and style attributes may render with additional whitespace. This is due to an optimization to improve the render time of Lightning Web Components.

This change is exactly the same as what we've reported in previous releases, and can be fixed by avoiding anti-patterns for styling components. E.g.:

/* Don’t do this */
document.querySelector('[class="highlight yellow"]');
/* Do this instead */
document.querySelector(".highlight.yellow");

The difference now is that this change may be seen in more components than before.

What's Changed

• perf: apply static parts optimization to dynamic attributes by @jmsjtu in https://github.com/salesforce/lwc/pull/4055
• fix: fix iframe onload with static content optimization by @nolanlawson in https://github.com/salesforce/lwc/pull/4082
• fix: remove unnecessary nullish coalescing by @nolanlawson in https://github.com/salesforce/lwc/pull/4086
• chore: update non-breaking dependencies by @jye-sf in https://github.com/salesforce/lwc/pull/4085
• perf: Apply static parts optimization to dynamic style by @jmsjtu in https://github.com/salesforce/lwc/pull/4084
• perf(synthetic-shadow): optimize recursivelySetShadowResolver by @nolanlawson in https://github.com/salesforce/lwc/pull/4088
• perf(template-compiler): support key in static content by @nolanlawson in https://github.com/salesforce/lwc/pull/4091
• perf: optimize createUpgradableConstructor by @nolanlawson in https://github.com/salesforce/lwc/pull/4092
• perf: apply static parts optimization to dynamic class attributes by @jmsjtu in https://github.com/salesforce/lwc/pull/4071
• chore: update jest snapshot by @nolanlawson in https://github.com/salesforce/lwc/pull/4095
• fix: support arguments for FACE callbacks by @nolanlawson in https://github.com/salesforce/lwc/pull/4094
• fix(engine-core): fix warnings for invalid keys by @nolanlawson in https://github.com/salesforce/lwc/pull/4097
• perf(engine-core): optimize patchClassAttribute by @nolanlawson in https://github.com/salesforce/lwc/pull/4102
• fix: error accessing tagName on fragment by @jmsjtu in https://github.com/salesforce/lwc/pull/4103
• perf: apply static parts optimization to dynamic text by @jmsjtu in https://github.com/salesforce/lwc/pull/4099
• fix: children and childNodes not returning top-level slotted children by @abdulsattar in https://github.com/salesforce/lwc/pull/4098
• fix: add signals as dependency by @jmsjtu in https://github.com/salesforce/lwc/pull/4106

Full Changelog: https://github.com/salesforce/lwc/compare/v6.3.4...v6.4.0