The latest WordPress version is:
WordPress Icon Library
A searchable guide to the complete WordPress Icon Library package from Gutenberg.
WordPress Core Blocks Explorer
A searchable guide to all the WordPress Core Blocks for the Block Editor and their properties.
Or get a complete JSON object of all the core blocks and their properties instead.
WordPress Audit Checklist
A helpful checklist to audit your website for formatting, WordPress specific optimization, accessibility, performance, and security.