diff --git a/nonlinear-optimization.cabal b/nonlinear-optimization.cabal
--- a/nonlinear-optimization.cabal
+++ b/nonlinear-optimization.cabal
@@ -3,7 +3,7 @@
 Tested-With:         GHC
 Category:            Math
 Name:                nonlinear-optimization
-Version:             0.3.12
+Version:             0.3.12.1
 Stability:           experimental
 License:             GPL
 License-File:        LICENSE
@@ -27,6 +27,13 @@
     @hmatrix@ easily.
     .
     Currently only CG_DESCENT method is implemented.
+    .
+    If you want to use automatic differentiation to avoid hand-writing gradient functions,
+    you can use
+    <https://hackage.haskell.org/package/nonlinear-optimization-ad nonlinear-optimization-ad> package or
+    <https://hackage.haskell.org/package/nonlinear-optimization-backprop nonlinear-optimization-backprop> package.
+Homepage:	https://github.com/meteficha/nonlinear-optimization
+Bug-Reports:	https://github.com/meteficha/nonlinear-optimization/issues
 Extra-Source-Files:
     CG_DESCENT-C-3.0/cg_descent.c,
     CG_DESCENT-C-3.0/cg_descent.h,