diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,16 @@
+2021-09-15 Ivan Perez <ivan.perez@haskell.sexy>
+        * Yampa.cabal: Version bump (0.13.2), change cabal-version, add
+          default language (#180).
+        * src/: Update links (#179).
+        * README.md: Update installation instructions (#177), links (#178),
+          pointers to other projects (#162, #160, #153)
+        * .travis.yml: Enable testing haddock documentation (#72).
+        * tests/: Avoid modules whose documentation haddock does not generated
+          even if present (#72).
+        * src/: Minor adaptations to imports to make tests work (#72),
+                minor haddock documentation fixes (#175),
+                complete missing haddock documentation (#72).
+
 2019-10-15 Ivan Perez <ivan.perez@keera.co.uk>
         * Yampa.cabal: Version bump (0.13.1), introduce examples
           as executables, depend on fail if needed.
diff --git a/Yampa.cabal b/Yampa.cabal
--- a/Yampa.cabal
+++ b/Yampa.cabal
@@ -1,6 +1,6 @@
 name: Yampa
-version: 0.13.1
-cabal-version: >= 1.8
+version: 0.13.2
+cabal-version: >= 1.10
 license: BSD3
 license-file: LICENSE
 author: Henrik Nilsson, Antony Courtney
@@ -92,6 +92,9 @@
     FRP.Yampa.Diagnostics
     FRP.Yampa.InternalCore
 
+  default-language:
+    Haskell2010
+
 test-suite hlint
   type: exitcode-stdio-1.0
   main-is: hlint.hs
@@ -103,6 +106,9 @@
       base,
       hlint >= 1.7
 
+  default-language:
+    Haskell2010
+
 -- Verify that the code is thoroughly documented
 test-suite haddock-coverage
   type: exitcode-stdio-1.0
@@ -120,6 +126,9 @@
       process,
       regex-posix
 
+  default-language:
+    Haskell2010
+
 test-suite regression
   type: exitcode-stdio-1.0
   main-is: testAFRPMain.hs
@@ -131,6 +140,9 @@
       base,
       Yampa
 
+  default-language:
+    Haskell2010
+
 executable yampa-examples-sdl-bouncingbox
   main-is: MainBouncingBox.hs
   other-modules: YampaSDL
@@ -142,6 +154,9 @@
   else
     buildable: False
 
+  default-language:
+    Haskell2010
+
 executable yampa-examples-sdl-circlingmouse
   main-is: MainCircleMouse.hs
   other-modules: YampaSDL
@@ -153,6 +168,9 @@
   else
     buildable: False
 
+  default-language:
+    Haskell2010
+
 executable yampa-examples-sdl-wiimote
   main-is: MainWiimote.hs
   other-modules: YampaSDL
@@ -164,6 +182,9 @@
   else
     buildable: False
 
+  default-language:
+    Haskell2010
+
 executable yampa-examples-elevator
   main-is: TestElevatorMain.hs
   other-modules: Elevator
@@ -175,6 +196,9 @@
   else
     buildable: False
 
+  default-language:
+    Haskell2010
+
 executable yampa-examples-tailgatingdetector
   main-is: TestTGMain.hs
   other-modules: TailgatingDetector
@@ -185,6 +209,9 @@
     build-depends: base < 5, Yampa
   else
     buildable: False
+
+  default-language:
+    Haskell2010
 
 source-repository head
   type:     git
diff --git a/src/FRP/Yampa.hs b/src/FRP/Yampa.hs
--- a/src/FRP/Yampa.hs
+++ b/src/FRP/Yampa.hs
@@ -28,7 +28,7 @@
 --
 -- <https://github.com/ivanperez-keera/Yampa>
 --
--- <https://github.com/ivanperez-keera/Yampa/tree/master/examples>
+-- <https://github.com/ivanperez-keera/Yampa/tree/develop/yampa/examples>
 --
 -- <https://wiki.haskell.org/Yampa>
 --
@@ -56,7 +56,7 @@
 --
 -- * How to transform the input signal into the output signal. This requires
 -- thinking about the transformation applied as time progresses towards the
--- future, possinly switching from one transformation to another as the program
+-- future, possibly switching from one transformation to another as the program
 -- evolves.
 --
 -- The first two aspects lie outside Yampa, and they determine the backends
@@ -86,7 +86,7 @@
 -- For a simple example of an SDL application that creates a moving picture
 -- around the mouse position, see:
 --
--- https://github.com/ivanperez-keera/Yampa/blob/develop/examples/yampa-game/MainCircleMouse.hs
+-- https://github.com/ivanperez-keera/Yampa/blob/develop/yampa/examples/yampa-game/MainCircleMouse.hs
 --
 -- /Hybrid systems/
 --
@@ -97,6 +97,15 @@
 -- allows you to manipulate events, the module "FRP.Yampa.EventS" deals with
 -- event signal functions, and the "FRP.Yampa.Hybrid" allows you to go from a
 -- continuous-time domain to a discrete domain, and vice-versa.
+--
+-- /Vector Spaces/
+--
+-- Yampa uses vector spaces in time-aware primitives like 'integral'. However,
+-- Yampa does not enforce the use of a particular vector space implementation,
+-- meaning you could use 'integral' for example with other vector types like
+-- V2, V1, etc. from the library linear. For an example, see
+-- <https://gist.github.com/walseb/1e0a0ca98aaa9469ab5da04e24f482c2 this gist>.
+--
 --
 -- __Library Overview__
 --
diff --git a/src/FRP/Yampa/Integration.hs b/src/FRP/Yampa/Integration.hs
--- a/src/FRP/Yampa/Integration.hs
+++ b/src/FRP/Yampa/Integration.hs
@@ -18,6 +18,13 @@
 --
 -- The combinator 'iterFrom' gives enough flexibility to program your own
 -- leak-free integration and derivation SFs.
+--
+-- Many primitives and combinators in this module require instances of
+-- simple-affine-spaces's 'VectorSpace'. Yampa does not enforce the use of a
+-- particular vector space implementation, meaning you could use 'integral' for
+-- example with other vector types like V2, V1, etc. from the library linear.
+-- For an example, see
+-- <https://gist.github.com/walseb/1e0a0ca98aaa9469ab5da04e24f482c2 this gist>.
 -----------------------------------------------------------------------------------------
 
 module FRP.Yampa.Integration (
diff --git a/src/FRP/Yampa/Task.hs b/src/FRP/Yampa/Task.hs
--- a/src/FRP/Yampa/Task.hs
+++ b/src/FRP/Yampa/Task.hs
@@ -30,9 +30,12 @@
 import Control.Applicative (Applicative(..))
 #endif
 
-import FRP.Yampa
-import FRP.Yampa.EventS (snap)
-import FRP.Yampa.Diagnostics
+import FRP.Yampa.Basic        (constant)
+import FRP.Yampa.Diagnostics  (intErr, usrErr)
+import FRP.Yampa.Event        (Event, lMerge)
+import FRP.Yampa.EventS       (after, edgeBy, never, snap)
+import FRP.Yampa.InternalCore (SF, Time, arr, first, (&&&), (>>>))
+import FRP.Yampa.Switches     (switch)
 
 infixl 0 `timeOut`, `abortWhen`
 
diff --git a/tests/HaddockCoverage.hs b/tests/HaddockCoverage.hs
--- a/tests/HaddockCoverage.hs
+++ b/tests/HaddockCoverage.hs
@@ -79,8 +79,7 @@
     isHaskellFile fp = (isSuffixOf ".hs" fp || isSuffixOf ".lhs" fp)
                      && not (any (`isSuffixOf` fp) excludedFiles)
 
-    excludedFiles = [ "Vector2.hs", "Vector3.hs"
-                    , "Point2.hs", "Point3.hs" ]
+    excludedFiles = [ "Yampa.hs", "Random.hs" ]
 
 getFilesAndDirectories :: FilePath -> IO ([FilePath], [FilePath])
 getFilesAndDirectories dir = do
