Agile is treated quite differently in PMBOK 6th vs. PMBOK 7th Edition. Let’s compare them clearly:

🔹 Agile in PMBOK 6th Edition (2017)

Agile was not fully integrated into the main PMBOK text.
PMI published the Agile Practice Guide (separate but bundled with 6th edition).
Agile references appear in each Knowledge Area but mostly in side notes (“in adaptive environments…”).
The focus remained predictive with ITTOs and processes.
Agile seen as a special approach, used when requirements are uncertain.
Key Highlights:
- Mentions iterative & incremental development.
- Encourages tailoring project management to Agile.
- Points to hybrid approaches but not detailed.

🔹 Agile in PMBOK 7th Edition (2021)

Agile, hybrid, and predictive are treated equally valid — integrated throughout.
Whole book structured on principles and performance domains, which fit any approach.
Agile is embedded in:
- Principles: adaptability, resilience, change, value delivery.
- Domains: Development Approach & Lifecycle, Planning, Delivery, Uncertainty.
No separation like before → Agile is just “one way of working.”
Stronger emphasis on:
- Tailoring to context
- Value delivery & customer collaboration
- Continuous improvement

Aspect	PMBOK 6th Edition	PMBOK 7th Edition
Integration	Agile kept in separate Agile Practice Guide	Agile fully integrated into principles & domains
Viewpoint	Agile = alternative to predictive	Agile = equal to predictive, hybrid, tailored
Coverage	Limited references in Knowledge Areas	Embedded in all 12 Principles & 8 Domains
Approach	Focus on ITTO + predictive, Agile mentioned on the side	Focus on outcomes, value, adaptability (Agile mindset central)
Tailoring	Suggested but not deeply explained	Tailoring is a core theme (choose Agile/predictive/hybrid)
Mindset	Process-driven → Agile optional add-on	Value-driven → Agile is a natural part of “ways of working”

6th edition Agile = Learn it from the Agile Practice Guide → Scrum, Kanban, Lean, XP, estimation, metrics.
7th edition Agile = Understand the mindset & principles → adaptability, value delivery, tailoring, uncertainty management.