diff --git a/META-INFO/README.md b/META-INFO/README.md
index d8fe14e37d66ea77013b14917a035aaf86a0d7f7..7c971982313b496c311e19b2f367d0a1957efab8 100644
--- a/META-INFO/README.md
+++ b/META-INFO/README.md
@@ -3,8 +3,9 @@
 Meta-information is generally for OpenFOAM internal use only.
 
 The format, content and meaning may be changed at anytime without
-notice. If any of these are changed, these are some of places that
-will need to be updated accordingly:
+prior notice.
+If any of these are changed, these are some of places that will need
+to be updated accordingly:
 
   - bin/foamEtcFile
   - bin/tools/foamConfigurePaths
@@ -38,7 +39,7 @@ Format: `date +%y%m`
 
 - 4-digit year-month (YYMM) integer corresponding to the major
   release or in unusual cases an intermediate release.
-  Example, `1712` for the Dec-2017 release.
+  Example, `2106` for the June-2021 release.
 
 
 #### patch
@@ -78,9 +79,9 @@ the saved information needs synchronization. The command
 
 ### Notes
 
-The saved information is split into two separate files. The `api-info`
-contains more permanent information, whereas the `build-info` is more
-transient in nature.
+The saved information is split into two separate files.
+The `api-info` file contains more permanent information,
+whereas the `build-info` is more transient in nature.
 
 ----
-2020-06-23
+2021-06-09
diff --git a/README.md b/README.md
index a0ca46990f730d3e74006923013effdf93c05016..cbfa00c6610ebb496803784efbcf68da8da70bfc 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ individual and group contributors, integrations
 [governance guided activities](https://www.openfoam.com/governance/).
 
 
-## Copyright
+## License
 
 OpenFOAM is free software: you can redistribute it and/or modify it
 under the terms of the GNU General Public License as published by the
@@ -27,10 +27,11 @@ may redistribute files.
 OpenCFD Ltd grants use of its OpenFOAM trademark by Third Parties on a
 licence basis. ESI Group and OpenFOAM Foundation Ltd are currently
 permitted to use the Name and agreed Domain Name. For information on
-trademark use, please refer to the [trademark policy guidelines](http://www.openfoam.com/legal/trademark-policy.php).
+trademark use, please refer to the
+[trademark policy guidelines][link trademark].
 
 Please [contact OpenCFD](http://www.openfoam.com/contact) if you have
-any questions on the use of the OpenFOAM trademark.
+any questions about the use of the OpenFOAM trademark.
 
 Violations of the Trademark are monitored, and will be duly prosecuted.
 
@@ -39,9 +40,9 @@ Violations of the Trademark are monitored, and will be duly prosecuted.
 
 If OpenFOAM has already been compiled on your system, simply source
 the appropriate `etc/bashrc` or `etc/cshrc` file and get started.
-For example, for the OpenFOAM-v1912 version:
+For example, for the OpenFOAM-v2106 version:
 ```
-source /installation/path/OpenFOAM-v1912/etc/bashrc
+source /installation/path/OpenFOAM-v2106/etc/bashrc
 ```
 
 ## Compiling OpenFOAM
@@ -55,6 +56,11 @@ guides:
 | [ThirdParty][repo third] | [readme][link third-readme] | [system requirements][link third-require] | [build][link third-build] |
 
 
+If you need to modify the versions or locations of ThirdParty
+software, please read how the
+[OpenFOAM configuration][wiki-config] is structured.
+
+
 ## How do I know which version I am currently using?
 
 The value of the `$WM_PROJECT_DIR` or even `$WM_PROJECT_VERSION` are
@@ -63,19 +69,19 @@ not guaranteed to have any correspondence to the OpenFOAM release
 information is embedded into each application. For example, as
 displayed from `blockMesh -help`:
 ```
-Using: OpenFOAM-v1812.local (1812) - visit www.openfoam.com
-Build: 65d6551ff7-20190530 (patch=190531)
+Using: OpenFOAM-com (2012) - visit www.openfoam.com
+Build: b830beb5ea-20210429 (patch=210414)
 Arch:  LSB;label=32;scalar=64
 ```
 This output contains all of the more interesting information that we need:
 
 | item                  | value         |
 |-----------------------|---------------|
-| version               | v1812.local   |
-| api                   | 1812          |
-| commit                | 65d6551ff7    |
-| author date           | 20190530      |
-| patch-level           | (20)190531    |
+| version               | com  (eg, local development branch) |
+| api                   | 2012          |
+| commit                | b830beb5ea    |
+| author date           | 20210429      |
+| patch-level           | (20)210414    |
 | label/scalar size     | 32/64 bits    |
 
 The Arch information may also include the `solveScalar` size
@@ -90,19 +96,19 @@ when OpenFOAM has not yet been compiled:
 ```
 $ wmake -build-info
 make
-    api = 1812
-    patch = 190531
+    api = 2012
+    patch = 210414
     branch = master
-    build = 65d6551ff7-20190530
+    build = 308af39136-20210426
 ```
 Similar information is available with `foamEtcFile`, using the
 `-show-api` or `-show-patch` options. For example,
 ```
 $ foamEtcFile -show-api
-1812
+2012
 
 $ foamEtcFile -show-patch
-190531
+210414
 ```
 This output will generally be the easiest to parse for scripts.
 The `$FOAM_API` convenience environment variable may not reflect the
@@ -121,8 +127,8 @@ These 3rd-party sources are normally located in a directory parallel
 to the OpenFOAM directory. For example,
 ```
 /path/parent
-|-- OpenFOAM-v1912
-\-- ThirdParty-v1912
+|-- OpenFOAM-v2106
+\-- ThirdParty-v2106
 ```
 There are, however, many cases where this simple convention is inadequate:
 
@@ -130,7 +136,7 @@ There are, however, many cases where this simple convention is inadequate:
   operating system or cluster installation provides it)
 
 * When we have changed the OpenFOAM directory name to some arbitrary
-  directory name, e.g. openfoam-sandbox1912, etc..
+  directory name, e.g. openfoam-sandbox2106, etc..
 
 * When we would like any additional 3rd party software to be located
   inside of the OpenFOAM directory to ensure that the installation is
@@ -150,17 +156,14 @@ when locating the ThirdParty directory with the following precedence:
 2. PREFIX/ThirdParty-VERSION
    * this corresponds to the traditional approach
 3. PREFIX/ThirdParty-vAPI
-   * allows for an updated value of VERSION, *eg*, `v1912-myCustom`,
+   * allows for an updated value of VERSION, *eg*, `v2106-myCustom`,
      without requiring a renamed ThirdParty. The API value would still
-     be `1912` and the original `ThirdParty-v1912/` would be found.
+     be `2106` and the original `ThirdParty-v2106/` would be found.
 4. PREFIX/ThirdParty-API
-   * this is the same as the previous example, but using an unadorned
-     API value. This also makes sense if the chosen version name also
-     uses the unadorned API value in its naming, *eg*,
-     `1912-patch190131`, `1912.19W03`
+   * same as the previous example, but using an unadorned API value.
 5. PREFIX/ThirdParty-common
-   * permits maximum reuse for various versions, for experienced user
-     who are aware of potential version incompatibilities
+   * permits maximum reuse for various versions, for experienced
+     users who are aware of potential version incompatibilities
 
 If none of these directories are found to be suitable, it reverts to
 using PROJECT/ThirdParty as a dummy location (even if the directory
@@ -184,18 +187,21 @@ ThirdParty directory will contain either an `Allwmake` file or a
 
 <!-- OpenFOAM -->
 
+[link trademark]: https://www.openfoam.com/opencfd-limited-trade-mark-policy
+
 [repo openfoam]: https://develop.openfoam.com/Development/openfoam/
 [repo third]: https://develop.openfoam.com/Development/ThirdParty-common/
 
 [link openfoam-readme]: https://develop.openfoam.com/Development/openfoam/blob/develop/README.md
 [link openfoam-issues]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/BuildIssues.md
-[link openfoam-config]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Config.md
 [link openfoam-build]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Build.md
 [link openfoam-require]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Requirements.md
 [link third-readme]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/README.md
 [link third-build]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/BUILD.md
 [link third-require]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/Requirements.md
 
+[wiki-config]: https://develop.openfoam.com/Development/openfoam/-/wikis/configuring
+
 
 ## Useful Links
 
@@ -203,8 +209,8 @@ ThirdParty directory will contain either an `Allwmake` file or a
 - [Documentation](http://www.openfoam.com/documentation)
 - [Reporting bugs/issues/feature requests](http://www.openfoam.com/code/bug-reporting.php)
 - [Issue tracker](https://develop.openfoam.com/Development/openfoam/-/issues)
-- [Code wiki](https://develop.openfoam.com/Development/openfoam/-/wikis/) and [general wiki](http://wiki.openfoam.com/)
-- [Community](http://www.openfoam.com/community/), [Governance](http://www.openfoam.com/governance/)
+- [Code wiki](https://develop.openfoam.com/Development/openfoam/-/wikis/) and [General wiki](http://wiki.openfoam.com/)
+- [Governance](http://www.openfoam.com/governance/), [Governance Projects](https://www.openfoam.com/governance/projects)
 - [Contacting OpenCFD](http://www.openfoam.com/contact/)
 
-Copyright 2016-2020 OpenCFD Ltd
+Copyright 2016-2021 OpenCFD Ltd
diff --git a/doc/Build.md b/doc/Build.md
index f5786b287364ac81fb635938ca7db2f72e2a01b6..7853943b8022b2497fce3fe033f7b3ce33277629 100644
--- a/doc/Build.md
+++ b/doc/Build.md
@@ -3,13 +3,13 @@
 Prior to building, ensure that the [system requirements][link openfoam-require]
 are satisfied (including any special [cross-compiling][wiki-cross-compile]
 considerations), and source the correct OpenFOAM environment.
-For example, for the OpenFOAM-v2006 version:
+For example, for the OpenFOAM-v2106 version:
 ```
-source <installation path>/OpenFOAM-v2006/etc/bashrc
+source <installation path>/OpenFOAM-v2106/etc/bashrc
 ```
-e.g. if installed under the `~/OpenFOAM` directory
+e.g. if installed under the `~/openfoam` directory
 ```
-source ~/OpenFOAM/OpenFOAM-v2006/etc/bashrc
+source ~/openfoam/OpenFOAM-v2106/etc/bashrc
 ```
 
 
@@ -26,7 +26,7 @@ file.
 
 If you need to change the default versions for third-party libraries,
 or use system libraries for some components, please some additional
-information about the [config structure][link openfoam-config].
+information about the [config structure][wiki-config].
 
 ## Compile OpenFOAM
 
@@ -86,34 +86,37 @@ you haven't missed any error messages.
 ```
 foamInstallationTest
 ```
-- Create the user `run` directory:
+- test any given tutorial case. For example,
 ```
-mkdir -p $FOAM_RUN
+foamTestTutorial -full incompressible/simpleFoam/pitzDaily
 ```
-- Test the installation with a simple tutorial:
+- Note: the tutorial test can also be done manually:
 ```
+# Create the user "run" directory:
+mkdir -p "$FOAM_RUN"
+# Change to the user "run" directory:
 run
-cp -r $FOAM_TUTORIALS/incompressible/simpleFoam/pitzDaily ./
-cd pitzDaily
-blockMesh
-simpleFoam
+# Copy tutorial
+cp -r "$FOAM_TUTORIALS"/incompressible/simpleFoam/pitzDaily ./
+# Run the tutorial
+( cd pitzDaily && blockMesh && simpleFoam )
 ```
 
 ### ParaView
 
 OpenFOAM ships with ParaView sources for post-processing OpenFOAM
-field results. However, the paraview version distributed with
+field results. However, it will [often be sufficient][FAQ ParaView]
+to use the paraview version distributed with
 the operating system or a [binary package][download ParaView]
-will often be sufficient, and avoids additional compilation complexity.
+and avoid additional compilation complexity.
 
 If you do wish to compile ParaView from source, it is recommended
 that you do so ***after*** completing an initial compilation of OpenFOAM.
 This gets the process started much more quickly. At a later stage,
-OpenFOAM can be updated to compile with paraview. Only the affected
-applications will be compiled (eg, the blockMesh reader module) and the
-balance of the OpenFOAM installation will not affected.
+the OpenFOAM visualization module can be compiled for a particular
+ParaView version _without_ recompiling OpenFOAM itself.
 
-If you decide to compiling in two passes, you only need to execute the
+If you decide to compile in two passes, you only need to execute the
 top-level `Allwmake` a second time. Do **not** use `wclean` to force a
 complete rebuild! This is unnecessary.
 
@@ -124,8 +127,9 @@ More details in the [ThirdParty build guide][link third-build].
 
 <!-- Links -->
 
-[page ParaView]:  http://www.paraview.org/
+[page ParaView]: http://www.paraview.org/
 [download ParaView]: https://www.paraview.org/download/
+[FAQ ParaView]: https://discourse.paraview.org/t/i-want-to-visualize-my-openfoam-simulation-results-with-paraview-but-im-confused-which-version-should-i-use
 
 
 <!-- OpenFOAM -->
@@ -135,13 +139,14 @@ More details in the [ThirdParty build guide][link third-build].
 
 [link openfoam-readme]: https://develop.openfoam.com/Development/openfoam/blob/develop/README.md
 [link openfoam-issues]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/BuildIssues.md
-[link openfoam-config]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Config.md
 [link openfoam-build]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Build.md
-[wiki-cross-compile]: https://develop.openfoam.com/Development/openfoam/-/wikis/guides/build/cross-compile-mingw
 [link openfoam-require]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Requirements.md
 [link third-readme]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/README.md
 [link third-build]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/BUILD.md
 [link third-require]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/Requirements.md
 
+[wiki-cross-compile]: https://develop.openfoam.com/Development/openfoam/-/wikis/building/cross-compile-mingw
+[wiki-config]: https://develop.openfoam.com/Development/openfoam/-/wikis/configuring
+
 ---
-Copyright 2019-2020 OpenCFD Ltd
+Copyright 2019-2021 OpenCFD Ltd
diff --git a/doc/BuildIssues.md b/doc/BuildIssues.md
index 769170855ea4707db6555703a457718f27264fd6..ba7cd8e99afc410fb66e83a3a57dc77bc4a38d22 100644
--- a/doc/BuildIssues.md
+++ b/doc/BuildIssues.md
@@ -1,11 +1,11 @@
-## Known Build Issues (OpenFOAM-v2012)
+## Known Build Issues (v2012, v2106)
 
 ### Windows cross-compilation
 
 Compilation of adios, kahip, metis, ptscotch, boost/cgal do not work.
 
 
-## Known Build Issues (OpenFOAM-v2006)
+## Known Build Issues (v2006)
 
 ### Windows cross-compilation
 
@@ -17,11 +17,11 @@ Compilation of kahip and ptscotch do not work.
 
 ### Thermo problems with Clang
 
-Previous versions (1906, 1912) experienced some Clang builds issues
+Previous versions (v1906, v1912) experienced some Clang builds issues
 with thermophysical libraries. These are resolved with clang-10.
 
 
-## Known Build Issues (OpenFOAM-v1912)
+## Known Build Issues (v1912)
 
 ### ParaView, ParaView-Catalyst
 
@@ -62,7 +62,7 @@ Windows. Compile with the `-k` option to skip over these applications
 for now.
 
 
-## Known Build Issues (OpenFOAM-v1906)
+## Known Build Issues (v1906)
 
 ### Thermo problems with Clang
 
@@ -179,12 +179,13 @@ and attempt to install a `paraview~qt` version instead.
 
 [link openfoam-readme]: https://develop.openfoam.com/Development/openfoam/blob/develop/README.md
 [link openfoam-issues]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/BuildIssues.md
-[link openfoam-config]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Config.md
 [link openfoam-build]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Build.md
 [link openfoam-require]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Requirements.md
 [link third-readme]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/README.md
 [link third-build]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/BUILD.md
 [link third-require]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/Requirements.md
 
+[wiki-config]: https://develop.openfoam.com/Development/openfoam/-/wikis/configuring
+
 ---
-Copyright 2019-2020 OpenCFD Ltd
+Copyright 2019-2021 OpenCFD Ltd
diff --git a/doc/Config.md b/doc/Config.md
deleted file mode 100644
index 6bc78be382c48a2b7b64088c4e314147ef6c1441..0000000000000000000000000000000000000000
--- a/doc/Config.md
+++ /dev/null
@@ -1,277 +0,0 @@
-## OpenFOAM Configuration
-
-The main OpenFOAM settings are located in the parent `etc/` directory
-with both POSIX (bash, dash,...) and csh shells being supported.
-To use OpenFOAM, source either the `etc/bashrc` or the
-`etc/cshrc` file, as appropriate.
-
-These source the following files in the `config.sh/` or
-`config.csh/` directories:
-
-* `setup` : finalize setup of OpenFOAM environment (called by bashrc,cshrc)
-* `settings` : core settings
-* `aliases` : aliases for interactive shells
-* `unset` : sourced to clear as many OpenFOAM environment settings as possible
-* `mpi` : MPI communications library settings
-* `paraview` : application settings for ParaView
-* `scotch` : application settings for compiling against scotch
-* `metis` : application settings for compiling against metis
-
-The `config.{csh,sh}/example/` directories contain additional example
-configuration files for the corresponding shell:
-
-* `compiler` : an example of fine tuning ThirdParty compiler settings
-* `openmpi` : an example of fine tuning openmpi settings for OpenFOAM
-* `paraview` : an example of chaining to the standard config/paraview
-   with a different ParaView_VERSION
-* `prefs.csh`, `prefs.sh`: examples of supplying alternative site-defined
-  settings
-
-
-### OpenFOAM configuration layers
-
-Before launching into manually adjusting the configuration, it is
-useful to first understand how OpenFOAM supports different
-configuration *layers*. Similar to file-system permissions, we use the
-notion of **user**, **group**, **other** categories when searching for
-files. The output of `foamEtcFile` can be used to obtain a quick
-overview:
-```
-$ foamEtcFile -list
-
-$HOME/.OpenFOAM/1906
-$HOME/.OpenFOAM
-/path/OpenFOAM-v1906/site/1906/etc
-/path/OpenFOAM-v1906/site/etc
-/path/OpenFOAM-v1906/etc
-```
-
-Both the *user* paths (located as `$HOME/.OpenFOAM/`) and the *group*
-paths (`/path/OpenFOAM-v1906/site/`) support additional API versioning
-to allow different settings between releases. The **other**
-corresponds to the settings shipped with a particular OpenFOAM release.
-
-Making configuration changes under the *user* or *group* directories
-allows you to preserve these across upgrades and makes it easier (if
-necessary) to revert to the original values.
-
-### Making changes to the configuration
-
-The first encounter with the OpenFOAM configuration files can be
-somewhat intimidating. There are indeed quite a few different bits of
-software related to using OpenFOAM, each of which could be available
-in different preferred versions, in different possible locations and
-with different conventions for naming their library directories.
-Additionally it should allow individual users to make their own
-configuration choices. Supporting cshell variants for everything adds
-yet more files to the mix. Fortunately, the user often only needs to
-make a few simple changes and can ignore most of the details and we
-also provide a `bin/tools/foamConfigurePaths` tool to make multiple
-common changes directly from the command line. The configuration files
-generally contain detailed information about which values they expect,
-and the user editable part is also clearly marked as such. For
-example,
-
-```
-#------------------------------------------------------------------------------
-# USER EDITABLE PART: Changes made here may be lost with the next upgrade
-
-ParaView_VERSION=5.6.0
-ParaView_QT=qt-system
-
-# END OF (NORMAL) USER EDITABLE PART
-#------------------------------------------------------------------------------
-```
-
-Nonetheless, before making changes it can be useful to understand
-where these changes should actually be made (and why). To simplify
-things, we only discuss POSIX (bash), but most points apply to cshell
-variants as well.
-
-1. The main entry point for the OpenFOAM configuration is the
-   `etc/bashrc` file. The initial portion of the file establishes the
-   version and contains some script *magic* to help us determine where
-   the OpenFOAM directory is located. The balance of the file contains
-   some general OpenFOAM-specific settings, which you can use for
-   guidance but in general you should note the following:
-
-   * Changes made to this `etc/bashrc` file ___will be lost___ with
-     the next upgrade.
-   * Overrides should defined in the `etc/prefs.sh` instead.
-     See the comments section of the `etc/bashrc` file for more details.
-
-
-2. The `etc/bashrc` file (our entry point) passes control to the
-   `etc/config.sh/setup` file, which dispatches the rest of the
-   configuration actions.
-
-The setup of the OpenFOAM environment can be described in terms of a processing tree:
-```
-source etc/bashrc  [args]
-       |
-       |-- constants
-       |-- directory discovery magic
-       |-- defaults
-       |-- define OpenFOAM directory
-       |
-       \-- setup
-           |-- discovery of ThirdParty locations
-           |-- admin overrides (prefs.sh file)
-           |-- user overrides (prefs.sh file)
-           |-- user overrides (arguments)
-           |-- settings (compiler, os)
-           |-- mpi
-           |-- paraview
-           |-- vtk / mesa (llvm)
-           |-- CGAL / boost
-           |-- scotch
-           |-- FFTW
-           \-- aliases
-```
-At most locations in this process it is possible for the user to
-influence the values used by providing an alternative version of the
-file. For example, simply creating the file
-`$HOME/.OpenFOAM/config.sh/FFTW` will cause it to be found by the
-`foamEtcFile` mechanism during sourcing (see `foamEtcFile -list` for a
-reminder of which directories will be searched). Most fairly permanent
-changes that affect the base configuration of OpenFOAM itself (choice
-of compiler, mpi, data sizes, etc) should normally be defined in the
-`prefs.sh` file. These type of changes are important enough that they
-receive special treatment. Use the base or admin `prefs.sh` file if
-available as `PROJECT/etc/prefs.sh`. This provides the system admin a
-reliable location to define site-wide settings, such as for compiler
-and vendor-specific MPI libraries. use the user or group prefs.sh if
-it exists. For quick or temporary changes, the special interpretation
-of arguments when sourcing the etc/bashrc are quite convenient. This
-mechanism allows direct setting of variables without needing to edit
-any files. For example, to source the OpenFOAM environment with a
-different compiler:
-```
-source /path/to/OpenFOAM-v1906  WM_COMPILER=Clang
-```
-If the argument does not appear to be an assignment of a variable, it
-will attempt to resolve it as a file and then source that. This
-property lets the user bundle some favourite settings and temporarily
-switch to them. For example, by creating a few predefined
-configurations:
-```
-# file = $HOME/.OpenFOAM/gcc82
-export WM_COMPILER_TYPE=ThirdParty
-export WM_COMPILER=Gcc82
-export WM_LABEL_SIZE=32
-```
-or
-```
-# file = $HOME/.OpenFOAM/clang50-int64
-export WM_COMPILER_TYPE=ThirdParty
-export WM_COMPILER=Clang50
-export WM_LABEL_SIZE=64
-```
-It is then possible to easily switch between different configurations:
-```
-source /path/to/OpenFOAM-v1906  clang50-int64
-source /path/to/OpenFOAM-v1906  gcc82
-source /path/to/OpenFOAM-v1906  wingw
-```
-Armed with this information, the user should be able to make
-adjustments to the OpenFOAM configuration with a good degree of
-confidence. However, there are also times in which it can be expedient
-and useful to simply change the entries directly within the OpenFOAM
-directory as new permanent defaults for all users. This can also be
-the case for cluster installations where the user will not require the
-usual flexibility. For these cases, the `bin/tools/foamConfigurePaths`
-tool can be helpful (and powerful). For example, when installing
-without any OpenFOAM ThirdParty dependencies and additionally setting
-the OpenFOAM directory to a fixed location (removing any bash
-discovery magic):
-```
-bin/tools/foamConfigurePaths \
-    -project-path "/opt/openfoam-1906" \
-    -boost boost-system \
-    -cgal  cgal-system \
-    -fftw  fftw-system \
-    -kahip kahip-none \
-    -scotch scotch-system \
-    -scotch-path /usr/lib64/mpi/gcc/openmpi \
-    ;
-```
-Using this tool has some restrictions:
-
-* It must be called from the OpenFOAM project directory
-* It is not available in the PATH, since it we wish to avoid any
-  inadvertent use
-* Using this tool to change default gcc, gmp, mpfr versions is not
-  very precise. It will change the gcc version without distinguishing
-  between Gcc48, Gcc82 etc.
-
-
-### Working in groups
-
-When an OpenFOAM cluster installation is being used by several
-different people or interest groups it can be highly interesting to
-share common setups or custom libraries and applications. This is
-where the OpenFOAM site (group) configuration can be quite helpful.
-The directory location of OpenFOAM site settings is defined by the
-`$WM_PROJECT_SITE` environment variable. If this is undefined, the
-default is to use `PROJECT/site` (ie, a site directory located within
-the OpenFOAM directory). Within this `$WM_PROJECT_SITE` directory, we
-can use a directory structure that mirrors elements of the OpenFOAM
-directory structure, but which also includes a degree of versioning as
-well:
-```
-$WM_PROJECT_SITE
-|
-|-- API
-|   |-- bin
-|   \-- etc
-|-- VERSION
-|   \-- platforms
-|       |-- bin
-|       \-- lib
-|-- bin
-\-- etc
-```
-
-Useful OpenFOAM-related scripts can be placed in the bin directory. If
-the script can only work with a particular OpenFOAM version, it then
-makes sense to place it into the API/bin directory accordingly.
-Similarly, if particular configurations or setups are useful for
-several people, it makes sense to locate them centrally as a site (or
-group) resource. For example,
-```
-$WM_PROJECT_SITE
-|
-\-- etc
-    |-- caseDicts
-    \-- config.sh
-        |-- openmpi
-        \-- paraview
-```
-for some jointly useful caseDicts and suitable configurations for openmpi, paraview.
-The `foamEtcFile -list` option provides a good overview of which
-locations will be searched for configuration files, which uses the
-following precedence:
-
-* user:
-  * `$HOME/.OpenFOAM/API`
-  * `$HOME/.OpenFOAM`
-* group:
-  * `$WM_PROJECT_SITE/API/etc`
-  * `$WM_PROJECT_SITE`
-* other:
-  * `$WM_PROJECT_DIR/etc`
-
-If applications and libraries are to be shared within a group, a
-typical approach is that one person is in charge of administering the
-the internal code releases. They would compile the code in their
-normal user directories, which means that it would normally have the
-user destinations:
-```
-$FOAM_USER_APPBIN
-$FOAM_USER_LIBBIN
-```
-For distribution at the group level, these files would be synchronized to the corresponding group directories:
-```
-$FOAM_USER_APPBIN  ->  $FOAM_SITE_APPBIN
-$FOAM_USER_LIBBIN  ->  $FOAM_SITE_LIBBIN
-```
diff --git a/doc/Requirements.md b/doc/Requirements.md
index b73b4c09191c98eeee64f6f09627521f9c9d933d..03cefeb9d4274d1a3ff712ffc85097e20190d775 100644
--- a/doc/Requirements.md
+++ b/doc/Requirements.md
@@ -56,32 +56,26 @@ sudo apt-get install build-essential autoconf autotools-dev cmake gawk gnuplot
 sudo apt-get install flex libfl-dev libreadline-dev zlib1g-dev openmpi-bin libopenmpi-dev mpi-default-bin mpi-default-dev
 sudo apt-get install libgmp-dev libmpfr-dev libmpc-dev
 ```
-If you intend to use system components, you can also install the following:
+
+To inspect the available system versions, use the `apt-cache show`
+command. For example,
 ```
-apt-get install libscotch-dev libptscotch-dev libfftw3-dev libboost-system-dev libboost-thread-dev libcgal-dev
+sudo apt-cache show libopenmpi-dev
 ```
 
-Additional libraries will be required if compiling ParaView from
-source, however it is recommended to skipped this initially since
-it generally represent the main compilation difficulty.
-In many cases, a system installation of paraview or a
-[precompiled binary][download ParaView]
-will be much easier.
+| Program   | Ubuntu    | Program version |
+|-----------|-----------|-----------------|
+| gcc       | 20.04     | 9.3.0           |
+| openmpi   | 20.04     | 4.0.3           |
+| cmake     | 20.04     | 3.16.3          |
+| flex      | 20.04     | 2.6.4           |
+| m4        | 20.04     | 1.4.18          |
 
-Some libraries can be installed from the operating system, or
-compiled from the ThirdParty directory.
-The default configuration for OpenFOAM assumes OpenMPI from the system
-and ThirdParty installations for most others (boost, CGAL, FFTW,
-Kahip, Scotch). This is generally the most portable configuration
-across various Linux distributions, but it may be desirable to use
-more system libraries on Ubuntu.
 
-To inspect the available system versions, use the `apt-cache show`
-command. For example,
+
+If you intend to use system components, you can also install the following:
 ```
-sudo apt-cache show libboost-dev
-sudo apt-cache show libfftw3-dev
-...
+apt-get install libfftw3-dev libscotch-dev libptscotch-dev libboost-system-dev libboost-thread-dev libcgal-dev
 ```
 
 | Program   | apt-cache show  | Ubuntu  | Version |
@@ -92,13 +86,13 @@ sudo apt-cache show libfftw3-dev
 | scotch    | libscotch-dev   | 20.04   | 6.0.9   |
 
 
-| Program   | Ubuntu    | Program version |
-|-----------|-----------|-----------------|
-| gcc       | 20.04     | 9.3.0           |
-| openmpi   | 20.04     | 4.0.3           |
-| cmake     | 20.04     | 3.16.3          |
-| flex      | 20.04     | 2.6.4           |
-| m4        | 20.04     | 1.4.18          |
+Some libraries can be installed from the operating system, or
+compiled from the ThirdParty directory.
+The default configuration for OpenFOAM assumes OpenMPI from the system
+and ThirdParty installations for most others (boost, CGAL, FFTW,
+Kahip, Scotch). This is generally the most portable configuration
+across various Linux distributions, but it may be desirable to use
+more system libraries on Ubuntu.
 
 
 ### openSUSE (eg, Leap-15.2)
@@ -116,6 +110,10 @@ If you intend to use system components, you can also install the following:
 sudo zypper install fftw3-devel libboost_system-devel libboost_thread-devel
 ```
 but note that scotch and cgal are only available via the science repository.
+For boost, you may need to specify a specific version. For example,
+```
+sudo zypper install fftw3-devel libboost_system1_75_0-devel libboost_thread1_75_0-devel
+```
 
 This installs
 
@@ -181,26 +179,40 @@ export LD_PRELOAD="libmpi.so"
 
 ### Additional libraries
 
-When compiled ParaView from source additional dependencies will be
+When compiled [ParaView][page ParaView] from source additional dependencies will be
 required.
 A partial list is given in the [ThirdParty requirements][link third-require].
-**Please help us with keeping that information up-to-date and accurate.**
+
+However it is ***recommended*** to skipped this initially since
+it generally represents the main compilation difficulty encountered.
+In many cases, a system installation of paraview or a
+[precompiled binary][download ParaView]
+will be much easier and likely
+[fully adequate for your needs][FAQ ParaView].
+
+Since any ParaView/VTK dependencies are isolated within the
+visualization module, it is always possible to compile plugins for
+different ParaView versions as well as different VTK/Mesa combinations
+at any later stage _without_ recompiling OpenFOAM itself.
+
 
 <!-- Links -->
 
-[page ParaView]:  http://www.paraview.org/
+[page ParaView]: http://www.paraview.org/
 [download ParaView]: https://www.paraview.org/download/
+[FAQ ParaView]: https://discourse.paraview.org/t/i-want-to-visualize-my-openfoam-simulation-results-with-paraview-but-im-confused-which-version-should-i-use
 
 
 <!-- OpenFOAM -->
 
 [link openfoam-readme]: https://develop.openfoam.com/Development/openfoam/blob/develop/README.md
-[link openfoam-config]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Config.md
 [link openfoam-build]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Build.md
 [link openfoam-require]: https://develop.openfoam.com/Development/openfoam/blob/develop/doc/Requirements.md
 [link third-readme]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/README.md
 [link third-build]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/BUILD.md
 [link third-require]: https://develop.openfoam.com/Development/ThirdParty-common/blob/develop/Requirements.md
 
+[wiki-config]: https://develop.openfoam.com/Development/openfoam/-/wikis/configuring
+
 ---
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