@lwc/engine-server
9.5.3 · 27 Oct 2026MIT173.6k / weekRepositoryHomepagenpmAtom feed
Your version
1.18.0 is the newest release of 1.x.
npm marks 1.8.3 as deprecated: This package has been replaced by @lwc/ssr-runtime
In short
1 new2 changed
Release note
Improvements
#1617 - engine: Improve the diffing algorithm for slotted content. This change skips re-rendering unaffected slotted components which brings a significant performance boost in certain cases. ⚠️ Note⚠️ : As a side effect, components relying on
renderedCallbackto detect when slotted component changes might break. The right approach to detect slotted component changes is to use theslotchangeevent.
Bug fixes
#2036 - synthetic-shadow: Allow event listeners added prior to the evaluation of the
@lwc/synthetic-shadowpolyfill to be removed.
Internal
#2037 - engine: Refactor usage of
setElementProto.