Product notices

Release notices and
migration guidance.

Notices cover changes that may require integration updates. Routine fixes remain in the changelog.

Upcoming release v0.76 Migrating to v0.76 v0.76 makes shared-engine Viewer construction explicit, adds the canvas-mounted XLSX sheet Viewer, and replaces the synchronous Node parser compatibility APIs with one owned asynchronous pipeline. Upcoming release v0.75 Resource limits, typed failures and metrics for large files v0.75 applies default inflated-package limits to every DOCX, XLSX and PPTX load, reports measured limit failures with typed errors, and exposes content-free usage metrics.