diff --git a/revision.txt b/revision.txt
index 218694608..b2cdc4659 100644
--- a/revision.txt
+++ b/revision.txt
@@ -31,10 +31,52 @@ Notes:
   http://news.povray.org/42765ef3$1@news.povray.org
 ------------------------------------------------------------------------------
 
+------------------------------------------------------------------------------
+POV-Ray v3.7.0.9
+------------------------------------------------------------------------------
+
+Commit 17abe5f7 on 2021-06-02 by Christoph Lipka (c-lipka)
+
+    List OpenEXR 3.0.0 and higher as currently not supported in Unix
+    install docs.
+
+Commit f68653cc on 2021-06-02 by Christoph Lipka (c-lipka)
+
+    Prevent `VERSION` from being picked up as C++20 `<version>` standard
+    header.
+
+    - Move `config.h` (created by `configure`) from main directory to
+    `unix` subdirectory
+    - Move original `VERSION` from `unix` to `unix/prebuild` subdirectory.
+    - Fix some instances in `prebuild.sh` where we're adding the main
+    directory to the include search path for no obvious reason.
+
+    This should fix GitHub issue #403.
+
+Commit 48b1951d on 2021-06-02 by Christoph Lipka (c-lipka)
+
+    Fix Travis CI automated build tests.
+
+Commit a7b6a94f on 2021-05-30 by Christoph Lipka
+
+    Eliminate `uint` type from platform-independent code.
+
+Commit 3d513983 on 2021-05-30 by Christoph Lipka (c-lipka)
+
+    Modify Unix `./configure` script `stat` invocation to support
+    busybox-style systems.
+
+    `./configure` will now formally probe which `stat` parameter to use, and
+    in addition to `--format=` (GNU) and `-f` (BSD) also try `-c` (busybox).
+
 ------------------------------------------------------------------------------
 POV-Ray v3.7.0.8
 ------------------------------------------------------------------------------
 
+Commit 908900d9 on 2018-05-27 by Christoph Lipka
+
+    Bump version number and update change log.
+
 Commit e711a323 on 2018-05-27 by Christoph Lipka
 
     Address stack size issues in Mac OS builds.
diff --git a/source/backend/povray.h b/source/backend/povray.h
index c0716491a..2cba3c78d 100644
--- a/source/backend/povray.h
+++ b/source/backend/povray.h
@@ -76,9 +76,9 @@ bool povray_terminated();
 // POV-Ray version and copyright message macros
 
 #if POV_RAY_IS_OFFICIAL == 1
-#define POV_RAY_VERSION "3.7.0.8"
+#define POV_RAY_VERSION "3.7.0.9"
 #else
-#define POV_RAY_VERSION "3.7.0.8.unofficial"
+#define POV_RAY_VERSION "3.7.0.9.unofficial"
 #endif
 
 #define POV_RAY_COPYRIGHT "Copyright 1991-2013 Persistence of Vision Raytracer Pty. Ltd."
diff --git a/unix/prebuild/VERSION b/unix/prebuild/VERSION
index 75af05a12..2173ae451 100644
--- a/unix/prebuild/VERSION
+++ b/unix/prebuild/VERSION
@@ -1 +1 @@
-3.7.0.8
+3.7.0.9