diff --git a/CHANGELOG.md b/CHANGELOG.md
index e21d1980..7e26dcca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 Change Log / Ray Tracing in One Weekend
 ====================================================================================================
 
-# v4.0.0 (2024-07-28)
+# v4.0.0 (2024-07-26)
 
 From our last official v3.2.3 release (three and a half years ago!), this major release includes all
 changes in the v4.0.0-alpha.1 and v4.0.0-alpha.2 releases, plus the changes listed immediately
diff --git a/books/RayTracingInOneWeekend.html b/books/RayTracingInOneWeekend.html
index 7aa8d478..de65c38c 100644
--- a/books/RayTracingInOneWeekend.html
+++ b/books/RayTracingInOneWeekend.html
@@ -8,8 +8,7 @@
                                    **Ray Tracing in One Weekend**
                    [Peter Shirley][], [Trevor David Black][], [Steve Hollasch][]
                                                 <br>
-                                     Version 4.0.0, 20XX-XX-XX
-                                      **DRAFT IN DEVELOPMENT**
+                                     Version 4.0.0, 2024-07-26
                                                 <br>
                       Copyright 2018-2024 Peter Shirley. All rights reserved.
 
@@ -4400,13 +4399,13 @@
 
   ### LaTeX and BibTex
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    ~\cite{Shirley20XXRTW1}
+    ~\cite{Shirley2024RTW1}
 
-    @misc{Shirley20XXRTW1,
+    @misc{Shirley2024RTW1,
        title = {Ray Tracing in One Weekend},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
-       year = {20XX},
-       month = {XXXXX},
+       year = {2024},
+       month = {July},
        note = {\small \texttt{https://raytracing.github.io/books/RayTracingInOneWeekend.html}},
        url = {https://raytracing.github.io/books/RayTracingInOneWeekend.html}
     }
@@ -4416,13 +4415,13 @@
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     \usepackage{biblatex}
 
-    ~\cite{Shirley20XXRTW1}
+    ~\cite{Shirley2024RTW1}
 
-    @online{Shirley20XXRTW1,
+    @online{Shirley2024RTW1,
        title = {Ray Tracing in One Weekend},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
-       year = {20XX},
-       month = {XXXXX},
+       year = {2024},
+       month = {July},
        url = {https://raytracing.github.io/books/RayTracingInOneWeekend.html}
     }
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/books/RayTracingTheNextWeek.html b/books/RayTracingTheNextWeek.html
index 2b80b007..bf5d4eee 100644
--- a/books/RayTracingTheNextWeek.html
+++ b/books/RayTracingTheNextWeek.html
@@ -8,8 +8,7 @@
                                    **Ray Tracing: The Next Week**
                    [Peter Shirley][], [Trevor David Black][], [Steve Hollasch][]
                                                 <br>
-                                     Version 4.0.0, 20XX-XX-XX
-                                      **DRAFT IN DEVELOPMENT**
+                                     Version 4.0.0, 2024-07-26
                                                 <br>
                       Copyright 2018-2024 Peter Shirley. All rights reserved.
 
@@ -4357,13 +4356,13 @@
 
   ### LaTeX and BibTex
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    ~\cite{Shirley20XXRTW2}
+    ~\cite{Shirley2024RTW2}
 
-    @misc{Shirley20XXRTW2,
+    @misc{Shirley2024RTW2,
        title = {Ray Tracing: The Next Week},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
-       year = {20XX},
-       month = {XXXXX},
+       year = {2024},
+       month = {July},
        note = {\small \texttt{https://raytracing.github.io/books/RayTracingTheNextWeek.html}},
        url = {https://raytracing.github.io/books/RayTracingTheNextWeek.html}
     }
@@ -4373,13 +4372,13 @@
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     \usepackage{biblatex}
 
-    ~\cite{Shirley20XXRTW2}
+    ~\cite{Shirley2024RTW2}
 
-    @online{Shirley20XXRTW2,
+    @online{Shirley2024RTW2,
        title = {Ray Tracing: The Next Week},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
-       year = {20XX},
-       month = {XXXXX},
+       year = {2024},
+       month = {July},
        url = {https://raytracing.github.io/books/RayTracingTheNextWeek.html}
     }
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/books/RayTracingTheRestOfYourLife.html b/books/RayTracingTheRestOfYourLife.html
index a8178b39..908be691 100644
--- a/books/RayTracingTheRestOfYourLife.html
+++ b/books/RayTracingTheRestOfYourLife.html
@@ -8,8 +8,7 @@
                                **Ray Tracing: The Rest of Your Life**
                    [Peter Shirley][], [Trevor David Black][], [Steve Hollasch][]
                                                 <br>
-                                     Version 4.0.0, 20XX-XX-XX
-                                      **DRAFT IN DEVELOPMENT**
+                                     Version 4.0.0, 2024-07-26
                                                 <br>
                       Copyright 2018-2024 Peter Shirley. All rights reserved.
 
@@ -4033,13 +4032,13 @@
 
   ### LaTeX and BibTex
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-    ~\cite{Shirley20XXRTW3}
+    ~\cite{Shirley2024RTW3}
 
-    @misc{Shirley20XXRTW3,
+    @misc{Shirley2024RTW3,
        title = {Ray Tracing: The Rest of Your Life},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
-       year = {20XX},
-       month = {XXXXX},
+       year = {2024},
+       month = {July},
        note = {\small \texttt{https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html}},
        url = {https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html}
     }
@@ -4049,13 +4048,13 @@
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     \usepackage{biblatex}
 
-    ~\cite{Shirley20XXRTW3}
+    ~\cite{Shirley2024RTW3}
 
-    @online{Shirley20XXRTW3,
+    @online{Shirley2024RTW3,
        title = {Ray Tracing: The Rest of Your Life},
        author = {Peter Shirley, Trevor David Black, Steve Hollasch},
-       year = {20XX},
-       month = {XXXXX},
+       year = {2024},
+       month = {July},
        url = {https://raytracing.github.io/books/RayTracingTheRestOfYourLife.html}
     }
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~