Article: https://wordpress.org/documentation/article/details-block/

Updates for 6.4

• Add accordion and toggle keywords to details block. 53501
• Add layout and block spacing to details block 53282

General

• Convert all reusable blocks to a ‘regular block’.
• Update the changelog at the end of the article

Good first issues

If you are looking for simpler tasks, take a look at related good first issues:

• Check ALT attributes: [HelpHub][6.4][ALT]: Details Block #1341
• Check headings: [HelpHub][6.4][headings]: Details Block #1342
• Update screenshots: [HelpHub][6.4][screenshots]: Details Block #1343
• Update videos: [HelpHub][6.4][videos]: Details Block #1344