diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,6 @@
-### 0.16.0 (2024)
-  * Added `--show-make-list` option
+### 0.16.0 (Sept 4, 2024)
+  * Added `--show-make-list` option to give a topological sort on the dependency graph for a source tree
+  * Added `--version` option
   * Some robustness improvements around mod files [#286](https://github.com/camfort/fortran-src/pull/286)
   * Helpers to work with the partial evaluation representation [#285](https://github.com/camfort/fortran-src/pull/285)
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@
 
 ```
 Usage: fortran-src [OPTION...] <file>
+                          --version                        show fortran-src version
   -v VERSION, -F VERSION  --fortranVersion=VERSION         Fortran version to use, format: Fortran[66/77/77Legacy/77Extended/90]
   -a ACTION               --action=ACTION                  choose the action, possible values: lex|parse
   -t                      --typecheck                      parse and run typechecker
@@ -46,10 +47,16 @@
   -B                      --bblocks                        analyse basic blocks
   -S                      --supergraph                     analyse super graph of basic blocks
   -r                      --reprint                        Parse and output using pretty printer
+                          --split-long                     when using pretty printer, split long lines via continuations
                           --dot                            output graphs in GraphViz DOT format
                           --dump-mod-file                  dump the information contained within mod files
+  -C[CPP-OPTS]            --cpp[=CPP-OPTS]                 run the C Pre Processor on the Fortran files first
   -I DIR                  --include-dir=DIR                directory to search for precompiled 'mod files'
-  -c                      --compile                        compile an .fsmod file from the input
+  -c                      --summarise, --compile-mod       build an .fsmod file from the input
+  -o FILE                 --output-file=FILE               name of output file (e.g. name of generated fsmod file)
+                          --make-mods, --make              determine dependency order of modules and automatically build .fsmod files
+                          --show-make-graph                dump a graph showing the build structure of modules
+                          --show-make-list                 dump a list of files in build dependency order (topological sort from the dependency graph)
                           --show-block-numbers[=LINE-NUM]  Show the corresponding AST-block identifier number next to every line of code.
                           --show-flows-to=AST-BLOCK-ID     dump a graph showing flows-to information from the given AST-block ID; prefix with 's' for supergraph
                           --show-flows-from=AST-BLOCK-ID   dump a graph showing flows-from information from the given AST-block ID; prefix with 's' for supergraph
@@ -70,7 +77,7 @@
 Haskell library dependencies are listed in `package.yaml`. fortran-src supports
 building with Stack or Cabal.
 
-fortran-src supports **GHC 9.0 through GHC 9.2**. We regularly test at least the
+fortran-src supports **GHC 9.0 through GHC 9.4**. We regularly test at least the
 minimum and maximum supported GHCs. Releases prior to/newer than those may have
 issues. We welcome fixes that would let us support a wider range of compilers.
 
diff --git a/app/Main.hs b/app/Main.hs
--- a/app/Main.hs
+++ b/app/Main.hs
@@ -51,7 +51,7 @@
 programName = "fortran-src"
 
 showVersion :: String
-showVersion = "0.16.0"
+showVersion = "0.16.1"
 
 main :: IO ()
 main = do
diff --git a/fortran-src.cabal b/fortran-src.cabal
--- a/fortran-src.cabal
+++ b/fortran-src.cabal
@@ -1,11 +1,11 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.36.0.
+-- This file has been generated from package.yaml by hpack version 0.37.0.
 --
 -- see: https://github.com/sol/hpack
 
 name:           fortran-src
-version:        0.16.0
+version:        0.16.1
 synopsis:       Parsers and analyses for Fortran standards 66, 77, 90, 95 and 2003 (partial).
 description:    Provides lexing, parsing, and basic analyses of Fortran code covering standards: FORTRAN 66, FORTRAN 77, Fortran 90, Fortran 95, Fortran 2003 (partial) and some legacy extensions. Includes data flow and basic block analysis, a renamer, and type analysis. For example usage, see the @<https://hackage.haskell.org/package/camfort CamFort>@ project, which uses fortran-src as its front end.
 category:       Language
diff --git a/src/Language/Fortran/Repr/Value/Machine.hs b/src/Language/Fortran/Repr/Value/Machine.hs
--- a/src/Language/Fortran/Repr/Value/Machine.hs
+++ b/src/Language/Fortran/Repr/Value/Machine.hs
@@ -31,3 +31,4 @@
     floatToDouble :: Float -> Double
     floatToDouble = realToFrac
 fromConstReal (MkFScalarValue (FSVReal (FReal8 a))) = Just $ a
+fromConstReal _ = Nothing
diff --git a/src/Language/Fortran/Util/ModFile.hs b/src/Language/Fortran/Util/ModFile.hs
--- a/src/Language/Fortran/Util/ModFile.hs
+++ b/src/Language/Fortran/Util/ModFile.hs
@@ -217,6 +217,8 @@
 combinedModuleMap :: ModFiles -> FAR.ModuleMap
 combinedModuleMap = M.unions . map mfModuleMap
 
+-- | Inside the module map, remove all imported declarations so that
+-- we can properly localise declarations to the originator file.
 localisedModuleMap :: FAR.ModuleMap -> FAR.ModuleMap
 localisedModuleMap = M.map (M.filter (not . FA.isImported . snd))