diff --git a/.github/workflows/cabal-ci.yaml b/.github/workflows/cabal-ci.yaml
index 99825d4..22268ba 100644
--- a/.github/workflows/cabal-ci.yaml
+++ b/.github/workflows/cabal-ci.yaml
@@ -57,6 +57,7 @@ jobs:
 
     # Restore dist-newstyle
     - name: Cache dist-newstyle
+      id: dist-cache-restore
       uses: actions/cache@v4
       with:
         path: |
@@ -64,7 +65,6 @@ jobs:
         key: dist-${{ matrix.os }}-${{ matrix.ghc }}-${{ hashFiles('**/*.cabal', '**/cabal.project', '**/cabal.project.local') }}
         restore-keys: |
           dist-${{ matrix.os }}-${{ matrix.ghc }}-
-        save-always: true
 
     # Build
     - name: Update package database
@@ -85,7 +85,7 @@ jobs:
     # Save packages
     - name: Save cache for ~/.cabal/packages and ~/.cabal/store
       uses: actions/cache/save@v4
-      if: always()
+      if: always() && steps.deps-cache-restore.outputs.cache-hit != 'true'
       with:
         path: |
           ~/.cabal/packages
@@ -99,3 +99,12 @@ jobs:
     - name: Run Tests
       run: cabal test
 
+    # Safe dist
+    - name: Save cache dist-newstyle
+      uses: actions/cache/save@v4
+      if: always() && steps.dist-cache-restore.outputs.cache-hit != 'true'
+      with:
+        path: |
+          dist-newstyle
+        key: ${{ steps.dist-cache-restore.outputs.cache-primary-key }}
+
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 513cf91..6c33ada 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # configuration-tools
 
+## 0.7.1 (2025-03-04)
+
+* Support lastest GHC (9.12)
+* Use setters instead of lenses in ..: and %.:
+* Allow validation functions to return new values
+
 ## 0.7.0 (2022-06-22)
 
 The version bump is due to the update of the dependency on optparse-applicative,
diff --git a/configuration-tools.cabal b/configuration-tools.cabal
index 78c7e02..b1fdc5a 100644
--- a/configuration-tools.cabal
+++ b/configuration-tools.cabal
@@ -1,7 +1,7 @@
 cabal-version: 3.0
 
 name: configuration-tools
-version: 0.7.0
+version: 0.7.1
 synopsis: Tools for specifying and parsing configurations
 description:
     Tools for specifying and parsing configurations
@@ -30,19 +30,20 @@ bug-reports: https://github.com/alephcloud/hs-configuration-tools/issues
 license: MIT
 license-file: LICENSE
 author: Lars Kuhtz <lakuhtz@gmail.com>
-maintainer: Lars Kuhtz <lakuhtz@gmail.com>
+maintainer: Lars Kuhtz <lakuhtz@gmail.com>, Edmund Noble <edmundnoble@gmail.com>
 copyright:
+    (c) 2024-2025 Edmund Noble <edmundnoble@gmail.com>,
     (c) 2019-2020 Colin Woodbury <colin@fosskers.ca>,
-    (c) 2015-2023 Lars Kuhtz <lakuhtz@gmail.com>,
+    (c) 2015-2025 Lars Kuhtz <lakuhtz@gmail.com>,
     (c) 2014-2015 AlephCloud, Inc.
 category: Configuration, Console
 build-type: Custom
 tested-with:
+    , GHC==9.12
+    , GHC==9.10
+    , GHC==9.8
     , GHC==9.6
     , GHC==9.4
-    , GHC==9.2
-    , GHC==9.0.1
-    , GHC==8.10.7
 
 extra-doc-files:
     README.md,
diff --git a/src/Configuration/Utils.hs b/src/Configuration/Utils.hs
index b177f18..dd97d6e 100644
--- a/src/Configuration/Utils.hs
+++ b/src/Configuration/Utils.hs
@@ -280,19 +280,19 @@ programInfo
         -- ^ default configuration
     → ProgramInfo a
 programInfo desc parser defaultConfig =
-    programInfoValidate desc parser defaultConfig $ return
+    programInfoValidate desc parser defaultConfig $ const (return ())
 
 -- | Smart constructor for 'ProgramInfo'.
 --
 -- 'piHelpHeader' and 'piHelpFooter' are set to 'Nothing'.
 --
-programInfoValidate
+programInfoValidate'
     ∷ String
     → MParser a
     → a
     → ConfigValidation' a f r
     → ProgramInfoValidate' a f r
-programInfoValidate desc parser defaultConfig valFunc = ProgramInfo
+programInfoValidate' desc parser defaultConfig valFunc = ProgramInfo
     { _piDescription = desc
     , _piHelpHeader = Nothing
     , _piHelpFooter = Nothing
@@ -302,6 +302,19 @@ programInfoValidate desc parser defaultConfig valFunc = ProgramInfo
     , _piConfigurationFiles = []
     }
 
+-- | Smart constructor for 'ProgramInfo'.
+--
+-- 'piHelpHeader' and 'piHelpFooter' are set to 'Nothing'.
+--
+programInfoValidate
+    ∷ String
+    → MParser a
+    → a
+    → ConfigValidation a f
+    → ProgramInfoValidate a f
+programInfoValidate desc parser defaultConfig valFunc =
+    programInfoValidate' desc parser defaultConfig $ \c -> valFunc c >> return c
+
 -- -------------------------------------------------------------------------- --
 -- AppConfiguration
 
@@ -718,7 +731,7 @@ parseConfiguration
         )
     ⇒ T.Text
         -- ^ program name (used in error messages)
-    → ProgramInfoValidate a f
+    → ProgramInfoValidate' a f r
         -- ^ program info value; use 'programInfo' to construct a value of this
         -- type
     → [String]