diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 0c618eb..4b48ce0 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -8,9 +8,9 @@
 #
 # For more information, see https://github.com/haskell-CI/haskell-ci
 #
-# version: 0.19.20240514
+# version: 0.19.20250216
 #
-# REGENDATA ("0.19.20240514",["github","ghc-tcplugins-extra.cabal"])
+# REGENDATA ("0.19.20250216",["github","ghc-tcplugins-extra.cabal"])
 #
 name: Haskell-CI
 on:
@@ -19,7 +19,7 @@ on:
 jobs:
   linux:
     name: Haskell-CI - Linux - ${{ matrix.compiler }}
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-24.04
     timeout-minutes:
       60
     container:
@@ -28,24 +28,29 @@ jobs:
     strategy:
       matrix:
         include:
+          - compiler: ghc-9.12.1
+            compilerKind: ghc
+            compilerVersion: 9.12.1
+            setup-method: ghcup
+            allow-failure: false
           - compiler: ghc-9.10.1
             compilerKind: ghc
             compilerVersion: 9.10.1
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.8.2
+          - compiler: ghc-9.8.4
             compilerKind: ghc
-            compilerVersion: 9.8.2
+            compilerVersion: 9.8.4
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.6.5
+          - compiler: ghc-9.6.6
             compilerKind: ghc
-            compilerVersion: 9.6.5
+            compilerVersion: 9.6.6
             setup-method: ghcup
             allow-failure: false
-          - compiler: ghc-9.4.7
+          - compiler: ghc-9.4.8
             compilerKind: ghc
-            compilerVersion: 9.4.7
+            compilerVersion: 9.4.8
             setup-method: ghcup
             allow-failure: false
           - compiler: ghc-9.2.8
@@ -90,16 +95,29 @@ jobs:
             allow-failure: false
       fail-fast: false
     steps:
-      - name: apt
+      - name: apt-get install
         run: |
           apt-get update
           apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr curl git software-properties-common libtinfo5 libnuma-dev
+      - name: Install GHCup
+        run: |
           mkdir -p "$HOME/.ghcup/bin"
-          curl -sL https://downloads.haskell.org/ghcup/0.1.20.0/x86_64-linux-ghcup-0.1.20.0 > "$HOME/.ghcup/bin/ghcup"
+          curl -sL https://downloads.haskell.org/ghcup/0.1.40.0/x86_64-linux-ghcup-0.1.40.0 > "$HOME/.ghcup/bin/ghcup"
           chmod a+x "$HOME/.ghcup/bin/ghcup"
-          "$HOME/.ghcup/bin/ghcup" config add-release-channel https://raw.githubusercontent.com/haskell/ghcup-metadata/master/ghcup-prereleases-0.0.8.yaml;
+      - name: Install cabal-install
+        run: |
+          "$HOME/.ghcup/bin/ghcup" install cabal 3.14.1.1 || (cat "$HOME"/.ghcup/logs/*.* && false)
+          echo "CABAL=$HOME/.ghcup/bin/cabal-3.14.1.1 -vnormal+nowrap" >> "$GITHUB_ENV"
+      - name: Install GHC (GHCup)
+        if: matrix.setup-method == 'ghcup'
+        run: |
           "$HOME/.ghcup/bin/ghcup" install ghc "$HCVER" || (cat "$HOME"/.ghcup/logs/*.* && false)
-          "$HOME/.ghcup/bin/ghcup" install cabal 3.10.2.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
+          HC=$("$HOME/.ghcup/bin/ghcup" whereis ghc "$HCVER")
+          HCPKG=$(echo "$HC" | sed 's#ghc$#ghc-pkg#')
+          HADDOCK=$(echo "$HC" | sed 's#ghc$#haddock#')
+          echo "HC=$HC" >> "$GITHUB_ENV"
+          echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
+          echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
         env:
           HCKIND: ${{ matrix.compilerKind }}
           HCNAME: ${{ matrix.compiler }}
@@ -110,21 +128,12 @@ jobs:
           echo "LANG=C.UTF-8" >> "$GITHUB_ENV"
           echo "CABAL_DIR=$HOME/.cabal" >> "$GITHUB_ENV"
           echo "CABAL_CONFIG=$HOME/.cabal/config" >> "$GITHUB_ENV"
-          HCDIR=/opt/$HCKIND/$HCVER
-          HC=$("$HOME/.ghcup/bin/ghcup" whereis ghc "$HCVER")
-          HCPKG=$(echo "$HC" | sed 's#ghc$#ghc-pkg#')
-          HADDOCK=$(echo "$HC" | sed 's#ghc$#haddock#')
-          echo "HC=$HC" >> "$GITHUB_ENV"
-          echo "HCPKG=$HCPKG" >> "$GITHUB_ENV"
-          echo "HADDOCK=$HADDOCK" >> "$GITHUB_ENV"
-          echo "CABAL=$HOME/.ghcup/bin/cabal-3.10.2.0 -vnormal+nowrap" >> "$GITHUB_ENV"
           HCNUMVER=$(${HC} --numeric-version|perl -ne '/^(\d+)\.(\d+)\.(\d+)(\.(\d+))?$/; print(10000 * $1 + 100 * $2 + ($3 == 0 ? $5 != 1 : $3))')
           echo "HCNUMVER=$HCNUMVER" >> "$GITHUB_ENV"
           echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV"
           echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV"
-          if [ $((HCNUMVER > 91001)) -ne 0 ] ; then echo "HEADHACKAGE=true" >> "$GITHUB_ENV" ; else echo "HEADHACKAGE=false" >> "$GITHUB_ENV" ; fi
+          if [ $((HCNUMVER > 91201)) -ne 0 ] ; then echo "HEADHACKAGE=true" >> "$GITHUB_ENV" ; else echo "HEADHACKAGE=false" >> "$GITHUB_ENV" ; fi
           echo "ARG_COMPILER=--$HCKIND --with-compiler=$HC" >> "$GITHUB_ENV"
-          echo "GHCJSARITH=0" >> "$GITHUB_ENV"
         env:
           HCKIND: ${{ matrix.compilerKind }}
           HCNAME: ${{ matrix.compiler }}
@@ -248,8 +257,8 @@ jobs:
           rm -f cabal.project.local
           $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks all
       - name: save cache
-        uses: actions/cache/save@v4
         if: always()
+        uses: actions/cache/save@v4
         with:
           key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
           path: ~/.cabal/store
diff --git a/.github/workflows/stack.yml b/.github/workflows/stack.yml
index af87ccf..e4ba297 100644
--- a/.github/workflows/stack.yml
+++ b/.github/workflows/stack.yml
@@ -21,11 +21,11 @@ jobs:
           - "9.0.1"
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: true
 
-    - uses: haskell/actions/setup@v1
+    - uses: haskell/actions/setup@v2
       name: Setup Stack
       with:
         enable-stack: true
@@ -35,8 +35,9 @@ jobs:
     - uses: haskell/actions/hlint-setup@v2
       name: Set up HLint
 
-    - uses: actions/cache@v2
-      name: Cache ~/.stack
+    - name: Cache ~/.stack
+      if: always()
+      uses: actions/cache@v4
       with:
         path: ~/.stack
         key: ${{ runner.os }}-${{ matrix.ghc }}-stack
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7a56189..68e3ec8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.5 *March 4th 2024*
+* Add `evByFiatWithDependencies`, see https://gitlab.haskell.org/ghc/ghc/-/merge_requests/12037 for more details.
+* Added support for GHC 9.12.1
+
 ## 0.4.6 *May 22nd 2024*
 * Added support for GHC-9.10.1
 * Removed support for GHC 7.10
diff --git a/defaults.dhall b/defaults.dhall
index 862ca95..2251cfd 100644
--- a/defaults.dhall
+++ b/defaults.dhall
@@ -1,5 +1,5 @@
 { name = "ghc-tcplugins-extra"
-, version = "0.4.6"
+, version = "0.5"
 , synopsis = "Utilities for writing GHC type-checker plugins"
 , description =
     ''
@@ -17,7 +17,7 @@
 , license = "BSD2"
 , license-file = "LICENSE"
 , tested-with =
-    "GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.2, GHC == 9.2.8, GHC == 9.4.7, GHC == 9.6.5, GHC == 9.8.2, GHC == 9.10.1"
+    "GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.2, GHC == 9.2.8, GHC == 9.4.7, GHC == 9.6.6, GHC == 9.8.4, GHC == 9.10.1, GHC == 9.12.1"
 , extra-source-files =
   [ "README.md", "CHANGELOG.md", "defaults.dhall", "package.dhall" ]
 , ghc-options = [ "-Wall" ]
diff --git a/ghc-tcplugins-extra.cabal b/ghc-tcplugins-extra.cabal
index 12623c4..1a21fec 100644
--- a/ghc-tcplugins-extra.cabal
+++ b/ghc-tcplugins-extra.cabal
@@ -5,7 +5,7 @@ cabal-version: 2.0
 -- see: https://github.com/sol/hpack
 
 name:           ghc-tcplugins-extra
-version:        0.4.6
+version:        0.5
 synopsis:       Utilities for writing GHC type-checker plugins
 description:    Utilities for writing GHC type-checker plugins, such as
                 creating constraints, with a stable API covering multiple
@@ -21,7 +21,7 @@ license:        BSD2
 license-file:   LICENSE
 build-type:     Simple
 tested-with:
-    GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.2, GHC == 9.2.8, GHC == 9.4.7, GHC == 9.6.5, GHC == 9.8.2, GHC == 9.10.1
+    GHC == 8.0.2, GHC == 8.2.2, GHC == 8.4.4, GHC == 8.6.5, GHC == 8.8.4, GHC == 8.10.7, GHC == 9.0.2, GHC == 9.2.8, GHC == 9.4.8, GHC == 9.6.6, GHC == 9.8.4, GHC == 9.10.1, GHC == 9.12.1
 extra-source-files:
     README.md
     CHANGELOG.md
@@ -47,7 +47,7 @@ library
   ghc-options: -Wall
   build-depends:
       base >=4.8 && <5
-    , ghc >=7.10 && <9.12
+    , ghc >=7.10 && <9.13
   default-language: Haskell2010
   if impl(ghc >= 8.0.0)
     ghc-options: -Wcompat -Wincomplete-uni-patterns -Widentities -Wredundant-constraints
@@ -55,7 +55,20 @@ library
     ghc-options: -fhide-source-paths
   if flag(deverror)
     ghc-options: -Werror
-  if impl(ghc >= 9.10) && impl(ghc < 9.12)
+  if impl(ghc >= 9.11) && impl(ghc < 9.13)
+    other-modules:
+        GhcApi.Constraint
+        GhcApi.Predicate
+        GhcApi.GhcPlugins
+        Internal.Type
+        Internal.Constraint
+        Internal.Evidence
+    hs-source-dirs:
+        src-ghc-tree-9.4
+        src-ghc-9.12
+    build-depends:
+        ghc >=9.11 && <9.13
+  if impl(ghc >= 9.10) && impl(ghc < 9.11)
     other-modules:
         GhcApi.Constraint
         GhcApi.Predicate
@@ -67,7 +80,7 @@ library
         src-ghc-tree-9.4
         src-ghc-9.10
     build-depends:
-        ghc >=9.10 && <9.12
+        ghc ==9.10.*
   if impl(ghc >= 9.8) && impl(ghc < 9.10)
     other-modules:
         GhcApi.Constraint
diff --git a/package.dhall b/package.dhall
index bbeae32..6cf2d1d 100644
--- a/package.dhall
+++ b/package.dhall
@@ -26,11 +26,12 @@ in  let ghc = { name = "ghc", mixin = [] : List Text }
                 //  { library =
                       { source-dirs = "src"
                       , dependencies =
-                        [ "base >=4.8 && <5", "ghc >=7.10 && <9.12" ]
+                        [ "base >=4.8 && <5", "ghc >=7.10 && <9.13" ]
                       , exposed-modules = "GHC.TcPluginM.Extra"
                       , other-modules = "Internal"
                       , when =
-                        [ version "9.10" "9.12" [ "tree-9.4", "9.10" ] ghc mods
+                        [ version "9.11" "9.13" [ "tree-9.4", "9.12" ] ghc mods
+                        , version "9.10" "9.11" [ "tree-9.4", "9.10" ] ghc mods
                         , version "9.8" "9.10" [ "tree-9.4", "9.8" ] ghc mods
                         , version "9.4" "9.8" [ "tree-9.4", "9.4" ] ghc mods
                         , version "9.2" "9.4" [ "tree", "9.2" ] ghc mods
diff --git a/src-ghc-8.0/Internal/Evidence.hs b/src-ghc-8.0/Internal/Evidence.hs
index 14d57c5..77e566d 100644
--- a/src-ghc-8.0/Internal/Evidence.hs
+++ b/src-ghc-8.0/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import TcEvidence (EvTerm(..))
 import TyCoRep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvCoercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvCoercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-8.10/Internal/Evidence.hs b/src-ghc-8.10/Internal/Evidence.hs
index 2c75e9f..e507979 100644
--- a/src-ghc-8.10/Internal/Evidence.hs
+++ b/src-ghc-8.10/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import TcEvidence (EvTerm(..))
 import TyCoRep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-8.2/Internal/Evidence.hs b/src-ghc-8.2/Internal/Evidence.hs
index 14d57c5..77e566d 100644
--- a/src-ghc-8.2/Internal/Evidence.hs
+++ b/src-ghc-8.2/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import TcEvidence (EvTerm(..))
 import TyCoRep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvCoercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvCoercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-8.4/Internal/Evidence.hs b/src-ghc-8.4/Internal/Evidence.hs
index 14d57c5..77e566d 100644
--- a/src-ghc-8.4/Internal/Evidence.hs
+++ b/src-ghc-8.4/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import TcEvidence (EvTerm(..))
 import TyCoRep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvCoercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvCoercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-8.6/Internal/Evidence.hs b/src-ghc-8.6/Internal/Evidence.hs
index 2c75e9f..e507979 100644
--- a/src-ghc-8.6/Internal/Evidence.hs
+++ b/src-ghc-8.6/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import TcEvidence (EvTerm(..))
 import TyCoRep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-8.8/Internal/Evidence.hs b/src-ghc-8.8/Internal/Evidence.hs
index 2c75e9f..e507979 100644
--- a/src-ghc-8.8/Internal/Evidence.hs
+++ b/src-ghc-8.8/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import TcEvidence (EvTerm(..))
 import TyCoRep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-9.0/Internal/Evidence.hs b/src-ghc-9.0/Internal/Evidence.hs
index aefd612..0e5bfd2 100644
--- a/src-ghc-9.0/Internal/Evidence.hs
+++ b/src-ghc-9.0/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import GHC.Tc.Types.Evidence (EvTerm(..))
 import GHC.Core.TyCo.Rep (UnivCoProvenance (..))
@@ -11,4 +11,14 @@ evByFiat :: String -- ^ Name the coercion should have
          -> Type   -- ^ The RHS of the equivalence relation (~)
          -> EvTerm
 evByFiat name t1 t2 =
-  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
\ No newline at end of file
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-9.10/Internal/Evidence.hs b/src-ghc-9.10/Internal/Evidence.hs
index dcd3d3d..0e5bfd2 100644
--- a/src-ghc-9.10/Internal/Evidence.hs
+++ b/src-ghc-9.10/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import GHC.Tc.Types.Evidence (EvTerm(..))
 import GHC.Core.TyCo.Rep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-9.12/GhcApi/Constraint.hs b/src-ghc-9.12/GhcApi/Constraint.hs
new file mode 100644
index 0000000..ab1e8a9
--- /dev/null
+++ b/src-ghc-9.12/GhcApi/Constraint.hs
@@ -0,0 +1,14 @@
+module GhcApi.Constraint
+  ( Ct(..)
+  , CtEvidence(..)
+  , CtLoc
+  , CanEqLHS(..)
+  , ctLoc
+  , ctEvId
+  , mkNonCanonical
+  )
+where
+
+import GHC.Tc.Types.Constraint
+  (Ct (..), CtEvidence (..), CanEqLHS (..), ctLoc, ctEvId, mkNonCanonical)
+import GHC.Tc.Types.CtLoc (CtLoc)
diff --git a/src-ghc-9.12/GhcApi/GhcPlugins.hs b/src-ghc-9.12/GhcApi/GhcPlugins.hs
new file mode 100644
index 0000000..c87fa3e
--- /dev/null
+++ b/src-ghc-9.12/GhcApi/GhcPlugins.hs
@@ -0,0 +1,5 @@
+module GhcApi.GhcPlugins (module GHC.Plugins, FindResult(..), findPluginModule) where
+
+import GHC.Plugins hiding (TcPlugin)
+import GHC.Unit.Finder (findPluginModule)
+import GHC.Tc.Plugin (FindResult(..))
diff --git a/src-ghc-9.12/Internal/Constraint.hs b/src-ghc-9.12/Internal/Constraint.hs
new file mode 100644
index 0000000..515f677
--- /dev/null
+++ b/src-ghc-9.12/Internal/Constraint.hs
@@ -0,0 +1,64 @@
+{-# LANGUAGE RecordWildCards #-}
+
+module Internal.Constraint (newGiven, flatToCt, mkSubst, overEvidencePredType) where
+
+import GhcApi.GhcPlugins
+import GhcApi.Constraint
+  (Ct(..), CtEvidence(..), CanEqLHS(..), CtLoc, ctLoc, ctEvId, mkNonCanonical)
+
+import GHC.Tc.Utils.TcType (TcType)
+import GHC.Tc.Types.Constraint (DictCt(..), IrredCt(..), EqCt(..), QCInst(..))
+import GHC.Tc.Types.Evidence (EvTerm(..), EvBindsVar)
+import GHC.Tc.Plugin (TcPluginM)
+import qualified GHC.Tc.Plugin as TcPlugin (newGiven)
+
+-- | Create a new [G]iven constraint, with the supplied evidence. This must not
+-- be invoked from 'tcPluginInit' or 'tcPluginStop', or it will panic.
+newGiven :: EvBindsVar -> CtLoc -> PredType -> EvTerm -> TcPluginM CtEvidence
+newGiven tcEvbinds loc pty (EvExpr ev) = TcPlugin.newGiven tcEvbinds loc pty ev
+newGiven _ _ _ ev = panicDoc "newGiven: not an EvExpr: " (ppr ev)
+
+flatToCt :: [((TcTyVar,TcType),Ct)] -> Maybe Ct
+flatToCt [((_,lhs),ct),((_,rhs),_)]
+    = Just
+    $ mkNonCanonical
+    $ CtGiven (mkPrimEqPred lhs rhs)
+              (ctEvId ct)
+              (ctLoc ct)
+
+flatToCt _ = Nothing
+
+-- | Create simple substitution from type equalities
+mkSubst :: Ct -> Maybe ((TcTyVar, TcType),Ct)
+mkSubst ct@(CEqCan (EqCt {..}))
+  | TyVarLHS tyvar <- eq_lhs
+  = Just ((tyvar,eq_rhs),ct)
+mkSubst _ = Nothing
+
+-- | Modify the predicate type of the evidence term of a constraint
+overEvidencePredType :: (TcType -> TcType) -> Ct -> Ct
+overEvidencePredType f (CDictCan di) =
+  let
+    ev :: CtEvidence
+    ev = di_ev di
+  in CDictCan ( di { di_ev = ev { ctev_pred = f (ctev_pred ev) } } )
+overEvidencePredType f (CIrredCan ir) =
+  let
+    ev :: CtEvidence
+    ev = ir_ev ir
+  in CIrredCan ( ir { ir_ev = ev { ctev_pred = f (ctev_pred ev) } } )
+overEvidencePredType f (CEqCan eq) =
+  let
+    ev :: CtEvidence
+    ev = eq_ev eq
+  in CEqCan ( eq { eq_ev = ev { ctev_pred = f (ctev_pred ev) } } )
+overEvidencePredType f (CNonCanonical ct) =
+  let
+    ev :: CtEvidence
+    ev = ct
+  in CNonCanonical ( ev { ctev_pred = f (ctev_pred ev) } )
+overEvidencePredType f (CQuantCan qci) =
+  let
+    ev :: CtEvidence
+    ev = qci_ev qci
+  in CQuantCan ( qci { qci_ev = ev { ctev_pred = f (ctev_pred ev) } } )
diff --git a/src-ghc-9.12/Internal/Evidence.hs b/src-ghc-9.12/Internal/Evidence.hs
new file mode 100644
index 0000000..8e55741
--- /dev/null
+++ b/src-ghc-9.12/Internal/Evidence.hs
@@ -0,0 +1,25 @@
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
+
+import GHC.Tc.Types.Evidence (EvTerm(..))
+import GHC.Core.TyCo.Rep (UnivCoProvenance (..))
+
+import GhcApi.GhcPlugins
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiat :: String -- ^ Name the coercion should have
+         -> Type   -- ^ The LHS of the equivalence relation (~)
+         -> Type   -- ^ The RHS of the equivalence relation (~)
+         -> EvTerm
+evByFiat name t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) [] Nominal t1 t2
+{-# DEPRECATED evByFiat "'evByFiat' creates proofs that can lead to unsoundness, use 'evByFiatWithDependencies' instead.\nSee also https://gitlab.haskell.org/ghc/ghc/-/merge_requests/12037" #-}
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) deps Nominal t1 t2
diff --git a/src-ghc-9.12/Internal/Type.hs b/src-ghc-9.12/Internal/Type.hs
new file mode 100644
index 0000000..39fb06a
--- /dev/null
+++ b/src-ghc-9.12/Internal/Type.hs
@@ -0,0 +1,30 @@
+module Internal.Type (substType) where
+
+import Data.Maybe (fromMaybe)
+import GHC.Tc.Utils.TcType (TcType)
+import GHC.Core.TyCo.Rep (Type (..))
+import GHC.Types.Var (TcTyVar)
+
+-- | Apply substitutions in Types
+--
+-- __NB:__ Doesn't substitute under binders
+substType
+  :: [(TcTyVar, TcType)]
+  -> TcType
+  -> TcType
+substType subst tv@(TyVarTy v) =
+  fromMaybe tv (lookup v subst)
+substType subst (AppTy t1 t2) =
+  AppTy (substType subst t1) (substType subst t2)
+substType subst (TyConApp tc xs) =
+  TyConApp tc (map (substType subst) xs)
+substType _subst t@(ForAllTy _tv _ty) =
+  -- TODO: Is it safe to do "dumb" substitution under binders?
+  -- ForAllTy tv (substType subst ty)
+  t
+substType subst (FunTy k1 k2 t1 t2) =
+  FunTy k1 k2 (substType subst t1) (substType subst t2)
+substType _ l@(LitTy _) = l
+substType subst (CastTy ty co) =
+  CastTy (substType subst ty) co
+substType _ co@(CoercionTy _) = co
diff --git a/src-ghc-9.2/Internal/Evidence.hs b/src-ghc-9.2/Internal/Evidence.hs
index aefd612..0e5bfd2 100644
--- a/src-ghc-9.2/Internal/Evidence.hs
+++ b/src-ghc-9.2/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import GHC.Tc.Types.Evidence (EvTerm(..))
 import GHC.Core.TyCo.Rep (UnivCoProvenance (..))
@@ -11,4 +11,14 @@ evByFiat :: String -- ^ Name the coercion should have
          -> Type   -- ^ The RHS of the equivalence relation (~)
          -> EvTerm
 evByFiat name t1 t2 =
-  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
\ No newline at end of file
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-9.4/Internal/Evidence.hs b/src-ghc-9.4/Internal/Evidence.hs
index dcd3d3d..0e5bfd2 100644
--- a/src-ghc-9.4/Internal/Evidence.hs
+++ b/src-ghc-9.4/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import GHC.Tc.Types.Evidence (EvTerm(..))
 import GHC.Core.TyCo.Rep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-9.8/Internal/Evidence.hs b/src-ghc-9.8/Internal/Evidence.hs
index dcd3d3d..0e5bfd2 100644
--- a/src-ghc-9.8/Internal/Evidence.hs
+++ b/src-ghc-9.8/Internal/Evidence.hs
@@ -1,4 +1,4 @@
-module Internal.Evidence (evByFiat) where
+module Internal.Evidence (evByFiat, evByFiatWithDependencies) where
 
 import GHC.Tc.Types.Evidence (EvTerm(..))
 import GHC.Core.TyCo.Rep (UnivCoProvenance (..))
@@ -12,3 +12,13 @@ evByFiat :: String -- ^ Name the coercion should have
          -> EvTerm
 evByFiat name t1 t2 =
   EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
+
+-- | The 'EvTerm' equivalent for 'Unsafe.unsafeCoerce'
+evByFiatWithDependencies ::
+  String -- ^ Name the coercion should have
+  -> [Coercion] -- ^ The set of all the in-scope coercion that the proof makes use of.
+  -> Type -- ^ The LHS of the equivalence relation (~)
+  -> Type -- ^ The RHS of the equivalence relation (~)
+  -> EvTerm
+evByFiatWithDependencies name _deps t1 t2 =
+  EvExpr $ Coercion $ mkUnivCo (PluginProv name) Nominal t1 t2
diff --git a/src-ghc-flat/Internal.hs b/src-ghc-flat/Internal.hs
index 036eadd..ee485fc 100644
--- a/src-ghc-flat/Internal.hs
+++ b/src-ghc-flat/Internal.hs
@@ -9,6 +9,7 @@ module Internal
   , newGiven
   , newDerived
     -- * Creating evidence
+  , evByFiatWithDependencies
   , evByFiat
     -- * Lookup
   , lookupModule
@@ -41,7 +42,7 @@ import GhcApi.GhcPlugins
 
 import Internal.Type (substType)
 import Internal.Constraint (newGiven, flatToCt, overEvidencePredType)
-import Internal.Evidence (evByFiat)
+import Internal.Evidence (evByFiat, evByFiatWithDependencies)
 
 {-# ANN fr_mod "HLint: ignore Use camelCase" #-}
 
diff --git a/src-ghc-tree-9.4/Internal.hs b/src-ghc-tree-9.4/Internal.hs
index e113bf3..1845010 100644
--- a/src-ghc-tree-9.4/Internal.hs
+++ b/src-ghc-tree-9.4/Internal.hs
@@ -7,6 +7,7 @@ module Internal
     TcPlugin.newWanted
   , newGiven
     -- * Creating evidence
+  , evByFiatWithDependencies
   , evByFiat
     -- * Lookup
   , lookupModule
@@ -38,7 +39,7 @@ import GhcApi.GhcPlugins
 
 import Internal.Type (substType)
 import Internal.Constraint (newGiven, flatToCt, mkSubst, overEvidencePredType)
-import Internal.Evidence (evByFiat)
+import Internal.Evidence (evByFiatWithDependencies, evByFiat)
 
 -- | Find a module
 lookupModule :: ModuleName -- ^ Name of the module
diff --git a/src-ghc-tree/Internal.hs b/src-ghc-tree/Internal.hs
index c24caf9..8464936 100644
--- a/src-ghc-tree/Internal.hs
+++ b/src-ghc-tree/Internal.hs
@@ -9,6 +9,7 @@ module Internal
   , newGiven
   , newDerived
     -- * Creating evidence
+  , evByFiatWithDependencies
   , evByFiat
     -- * Lookup
   , lookupModule
@@ -39,7 +40,7 @@ import GhcApi.GhcPlugins
 
 import Internal.Type (substType)
 import Internal.Constraint (newGiven, flatToCt, mkSubst, overEvidencePredType)
-import Internal.Evidence (evByFiat)
+import Internal.Evidence (evByFiat, evByFiatWithDependencies)
 
 {-# ANN fr_mod "HLint: ignore Use camelCase" #-}
 
diff --git a/src/GHC/TcPluginM/Extra.hs b/src/GHC/TcPluginM/Extra.hs
index bc793b7..9a04305 100644
--- a/src/GHC/TcPluginM/Extra.hs
+++ b/src/GHC/TcPluginM/Extra.hs
@@ -18,6 +18,7 @@ module GHC.TcPluginM.Extra
   , newWantedWithProvenance
 #endif
     -- * Creating evidence
+  , evByFiatWithDependencies
   , evByFiat
 #if __GLASGOW_HASKELL__ < 711
     -- * Report contractions