diff --git a/aern2-mp.cabal b/aern2-mp.cabal
--- a/aern2-mp.cabal
+++ b/aern2-mp.cabal
@@ -1,13 +1,14 @@
 name:           aern2-mp
-version:        0.1.0.0
+version:        0.1.0.1
 cabal-version:  >= 1.9.2
 build-type:     Simple
-homepage:       https://github.com/michalkonecny/aern2/aern2-mp
+homepage:       https://github.com/michalkonecny/aern2
 author:         Michal Konecny
 maintainer:     Michal Konecny <mikkonecny@gmail.com>
 copyright:      (c) 2015-2017 Michal Konecny
 license:        BSD3
 license-file:   LICENSE
+extra-source-files:  changelog.md
 stability:      experimental
 tested-with:    GHC==7.10.3, GHC==8.0.2
 category:       Math
diff --git a/changelog.md b/changelog.md
new file mode 100644
--- /dev/null
+++ b/changelog.md
@@ -0,0 +1,3 @@
+* v 0.1.0.1 2017-09-12
+  * first release on Hackage
+  * backends: hmpfr and (tweaked) rounded
