diff --git a/CHANGELOG b/CHANGELOG
index 072550e09..2506b18bd 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -4,6 +4,9 @@ Release 1.10.0 (2020-01-xx)
 ==========================
 
 - This release now requires a C++14 compiler (GCC 5, Clang 3.4, Visual C++ 2015).
+- Visual Studio project and solution files for versions prior to 2015 have
+  been removed. Furthermore, the separate projects and solutions for 64-bit builds
+  have been removed and configurations have been merged in a single project file.
 - POCO's fixed-size integer types are now based on <cstdint> types. This changes
   the definition of Poco::Int64 and Poco::UInt64 on some platforms.
 - Many methods exposing raw pointers have been changed to use smart pointers
diff --git a/doc/99100-ReleaseNotes.page b/doc/99100-ReleaseNotes.page
index 8c8234104..587c15378 100644
--- a/doc/99100-ReleaseNotes.page
+++ b/doc/99100-ReleaseNotes.page
@@ -6,6 +6,9 @@ AAAIntroduction
 !!Summary of Changes
 
   - This release now requires a C++14 compiler (GCC 5, Clang 3.4, Visual C++ 2015).
+  - Visual Studio project and solution files for versions prior to 2015 have
+    been removed. Furthermore, the separate projects and solutions for 64-bit builds
+    have been removed and configurations have been merged in a single project file.
   - POCO's fixed-size integer types are now based on <cstdint> types. This changes
     the definition of Poco::Int64 and Poco::UInt64 on some platforms.
   - Many methods exposing raw pointers have been changed to use smart pointers