diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,8 +1,13 @@
 # Revision history for iridium
 
+## 0.1.5.2  -- 2016-03-11
+
+  * Improve stackage upper-bound check error output
+
 ## 0.1.5.1  -- 2016-03-11
 
   * Fix iridium package pvp compliance (lower bounds)
+  * First hackage release
 
 ## 0.1.5.0  -- 2016-03-11
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -20,6 +20,12 @@
 
 - Uploading of both the package itself and the documentation.
 
+iridium does all testing locally, in contrast to e.g. github's travis. 
+
+The output on errors is certainly not optimal; for example the stackage
+upper bound checking will print a typical, hard-to-consume cabal hell error
+message. iridium's aim is only to note _if_ something is wrong.
+
 # Usage
 
 Install iridium, run iridium in the directory containing the cabal package.
@@ -27,28 +33,31 @@
 
 ~~~~
 $ iridium
-Checking compilation and tests with different compiler versions
+Checking compilation with different compiler versions
   Checking with compiler ghc-7.8.4:                                   clear.
-  Checking with compiler ghc-7.10.3:                                  clear.
 Checking upper bounds using stackage:                                 clear.
 Checking documentation:                                               clear.
 Checking basic compilation:                                           clear.
-Checking that all dependencies have upper bounds:                     clear.
+Checking that all dependencies have a lower bound:                    clear.
+Checking that all dependencies have an upper bound:                   clear.
 Checking package validity:                                            clear.
+Testing the source distribution package:                              clear.
+Testing if the changelog mentions the latest version:                 clear.
 Comparing local version to hackage version:                           clear.
 [git]
   Testing for uncommitted changes:                                    clear.
 Summary:
-  Package:         iridium
-  Version:         0.1.2.0
-  Warning count:   0
-  Error   count:   0
-  Not -Wall clean:
+  Package:                iridium
+  Version:                0.1.5.1
+  Warning count:          0
+  Error   count:          0
+  Not -Wall clean:        []
   [git]
-    Branch:        master
-
-  Actions:         Upload package, Upload documentation
-
+    Branch:               master
+  Actions:                Tag the current commit with "0.1.5.1"
+                          Push current branch and tag to upstream repo
+                          Upload package
+                          Upload documentation
 > Continue [y]es [n]o? > y
 Performing upload..
 Building source dist for iridium-0.1.2.0...
@@ -80,6 +89,9 @@
 | hlint | `forM_ hs-source-dirs $ \dir -> (\dir -> call "hlint " ++ dir)` |
 | testsuites | run `cabal test` when compiling. |
 | upper-bounds-stackage | Check that upper bounds are up-to-date by using a stackage cabal.config. This is not the best way, because not all packages are on stackage, but it is better than nothing. |
-| upper-bounds-exist | Check that all dependencies have upper bounds. (You _do_ want to conform with the PVP, right?) |
+| lower-bounds-exist | Check that all dependencies have a lower bound. |
+| upper-bounds-exist | Check that all dependencies have an upper bound. (You _do_ want to conform with the PVP, right?) |
 | documentation | Check that haddocks can be created without problems (calling `cabal haddock`). |
 | changelog | Check if the changelog mentions (contains) the latest version. |
+| package-sdist | Check that all necessary stuff is contained in the source distribution by installing the packaged package. |
+| compiler-versions | Compile and run tests for several compiler versions (other than the default compiler on $PATH). |
diff --git a/data/default-iridium.yaml b/data/default-iridium.yaml
--- a/data/default-iridium.yaml
+++ b/data/default-iridium.yaml
@@ -79,9 +79,9 @@
     enabled: False
     use-nightly: False
     # blacklist: [omit, check, for, these, packages] # not supported yet
-  upper-bounds-exist:
-    enabled: True
   lower-bounds-exist:
+    enabled: True
+  upper-bounds-exist:
     enabled: True
   changelog:
     enabled: True
diff --git a/iridium.cabal b/iridium.cabal
--- a/iridium.cabal
+++ b/iridium.cabal
@@ -1,5 +1,5 @@
 name:                iridium
-version:             0.1.5.1
+version:             0.1.5.2
 synopsis:            Automated Testing and Package Uploading
 license:             BSD3
 license-file:        LICENSE
diff --git a/src/Development/Iridium/Checks.hs b/src/Development/Iridium/Checks.hs
--- a/src/Development/Iridium/Checks.hs
+++ b/src/Development/Iridium/Checks.hs
@@ -415,7 +415,7 @@
             liftIO $ Text.IO.writeFile (encodeString cabalConfigPath) (Text.unlines filteredLines)
             let testsArg = ["--enable-tests" | testsEnabled]
             runCommandSuccessCabal ["clean"]
-            runCommandSuccessCabal $ ["install", "--dep", "--force-reinstalls", "--dry-run"] ++ testsArg
+            runCommandSuccessCabal $ ["--no-require-sandbox", "--ignore-sandbox", "install", "--dep", "--global", "--dry-run"] ++ testsArg
           pushLog LogLevelInfo $ "Cleanup (cabal.config)"
           unless alreadyExists $ Turtle.rm cabalConfigPath
           when alreadyExists $ Turtle.mv cabalConfigBackupPath cabalConfigPath