There’s an updated (April 2025) Subscription License Suites document from Microsoft. This useful document shows you which individual licences make up suites like Office 365 E3. There are a couple of changes: the addition of Microsoft 365 Business Premium as an eligible prerequisite for Microsoft 365 E5 Security, and a note about mixed licensing scenarios for Microsoft Defender for Business and Microsoft Defender for Endpoint Plan 2.

Find this updated document here: https://bit.ly/4d4L91C.