next chapter

docs/00-series-overview.md

@@ -71,7 +71,7 @@ The emphasis is always on understanding the underlying design rather than memori
 
 ## Repository Structure
 
-The structure below includes the current documentation, PlantUML diagrams, and A/B simulation. Hardware demonstrations and later chapters will be added as the practical material develops.
+The structure below includes the current documentation, PlantUML diagrams, and C++ simulations. Hardware demonstrations and later chapters will be added as the practical material develops.
 
 ```text
 ota-reference-design/
@@ -84,6 +84,7 @@ ota-reference-design/
 │   ├── 04-starting-an-updated-system-or-service.md
 │   ├── 05-storage-layout.md
 │   ├── 06-atomic-updates.md
+│   ├── 07-rollback-and-recovery.md
 │   ├── ...
 │
 ├── diagrams/
@@ -93,7 +94,8 @@ ota-reference-design/
 ├── examples/
 │   └── simulations/
 │       ├── ab-trial-boot/
-│       └── interrupted-installation/
+│       ├── interrupted-installation/
+│       └── rollback-policy/
 │
 ├── adr/
 │   ├── ADR-001-repository-name.md
@@ -115,6 +117,7 @@ The chapters are designed to build on each other. The current chapters are:
 - [04. Starting an Updated System or Service](04-starting-an-updated-system-or-service.md)
 - [05. Storage Layout](05-storage-layout.md)
 - [06. Atomic Updates](06-atomic-updates.md)
+- [07. Rollback and Recovery](07-rollback-and-recovery.md)
 
 To catch up on additions and revisions, see the [changelog](../CHANGELOG.md), with dated summaries and links to chapters, diagrams, simulations, and related history.
 
@@ -139,7 +142,7 @@ Storage Layout
 Atomic Updates
       │
       ▼
-Rollback
+Rollback and Recovery
       │
       ▼
 Security
@@ -201,7 +204,7 @@ Where possible, theoretical discussions are accompanied by practical material, i
 
 The objective is to connect high-level architecture with practical implementation.
 
-Available now: [PlantUML diagrams](../diagrams/readme.md), a [C++ A/B trial boot simulation](../examples/simulations/ab-trial-boot/readme.md), and a [C++ interrupted installation model](../examples/simulations/interrupted-installation/readme.md). Chapters 03–05 have PNG previews; chapter 06 currently has sources only. Raspberry Pi and QEMU demonstrations are planned.
+Available now: [PlantUML diagrams](../diagrams/readme.md), a [C++ A/B trial boot simulation](../examples/simulations/ab-trial-boot/readme.md), a [C++ interrupted installation model](../examples/simulations/interrupted-installation/readme.md), and a [C++ rollback policy simulation](../examples/simulations/rollback-policy/readme.md). Chapters 03–07 have PNG previews alongside their PlantUML sources. Raspberry Pi and QEMU demonstrations are planned.
 
 ---