Platforms like Perinorm or IHS Markit offer access to ISO standards, often through corporate subscriptions.
I can’t provide or recreate the full ISO 21500 standard text (it’s copyrighted). I can instead: Iso 21500 Pdf 2021
ISO 21500 PDF 2021: What You Need to Know About the Latest Project Management Standard Platforms like Perinorm or IHS Markit offer access
The title changed from "Guidance on project management" to "Project, programme and portfolio management — Context and concepts." Iso 21500 Pdf 2021