diff --git a/docs/src/getting_started.adoc b/docs/src/getting_started.adoc
index 2e1c839d..def32e80 100644
--- a/docs/src/getting_started.adoc
+++ b/docs/src/getting_started.adoc
@@ -134,8 +134,7 @@ control your logging output and format.
 
 TAOX11 has been tested with the following compilers
 
-* GCC version 4.8 or newer
-* Microsoft Visual Studio 2015
+* GCC version 8 or newer
 * Microsoft Visual Studio 2017
 * Microsoft Visual Studio 2019
 * Clang C++ version 5 or newer
@@ -145,7 +144,7 @@ TAOX11 has been tested with the following compilers
 
 TAOX11 is currently actively supported on
 
-* RHEL 7.5 x86_64 using GCC 4.8.5
+* RHEL 8.0 x86_64 using GCC 8.2.1
 
 TAOX11 is using at least the following {cxx11} features
 
@@ -173,9 +172,8 @@ prerequisites:
 |Prerequisite |Package name
 |ruby 2.0 or newer|ruby
 |perl version 5.10 or newer |perl
-|gcc version 4.7 or newer |gcc
-|g++ version 4.7 or newer |gcc-c++
-|clang 5 or newer |clang
+|gcc version 8 or newer |gcc
+|g++ version 8 or newer |gcc-c++
 |GNU make version 3.81 or newer |make
 |GNU Bash|bash
 |=========================================
@@ -315,7 +313,6 @@ directories and parse the MPC files. Once the GNU makefiles are generated, invok
 Execute the following commands to create the Visual Studio solutions for
 your version.
 
-- `perl %TAOX11_ROOT%/bin/mwc.pl -type vc14` for Visual Studio 2015
 - `perl %TAOX11_ROOT%/bin/mwc.pl -type vs2017` for Visual Studio 2017
 - `perl %TAOX11_ROOT%/bin/mwc.pl -type vs2019` for Visual Studio 2019
 
diff --git a/docs/src/windows_instructions.adoc b/docs/src/windows_instructions.adoc
index 4ab971ad..381b0a63 100644
--- a/docs/src/windows_instructions.adoc
+++ b/docs/src/windows_instructions.adoc
@@ -16,7 +16,6 @@ compilers have been tested:
 
 * MinGW-w64 toolchain (a GNU compiler toolchain variant for the
 Windows platform)
-* Visual Studio 2015 Update 2 or newer
 * Visual Studio 2017 Update 3 or newer
 * Visual Studio 2019
 * Intel C++ 2016
@@ -122,7 +121,7 @@ http://www.7-zip.org/[here].
 
 === Visual Studio
 
-Development using Visual Studio 2015, 2017, and 2019 has been tested as well. When you use
+Development using Visual Studio 2017, and 2019 has been tested as well. When you use
 <<{parent_dir}/brix11/brix11.adoc#,BRIX11>> to compile the project, the project type will be set
 to _solution_ files by default and the _msbuild_ tool will
 be used to compile your application.