diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,34 @@
 # Changelog for ghc-lib-parser-ex
 
+## 8.10.0.20 released 2021-06-06
+- Update to `ghc-lib-8.10.5.20210606`
+
+## 0.20210601 released 2021-06-01
+- Update to `ghc-lib-parser-0.20210601`
+- Update types in `GHC.Types.Name.Reader` for ghc-9.2.1, `Located` becomes `LocatedN`
+
+## 0.20210501 released 2021-05-01
+- Update to `ghc-lib-0.20210501`
+
+## 0.20210331 released 2021-02-31
+- Update to `ghc-lib-0.20210331`
+- Upgrade to `ghc-lib-parser-9.0.1.20210324`
+
+## 9.0.0.4 released 2021-03-11
+- Bugfix for `GHC.Hs.Dump`
+
+## 0.20210228 released 2021-02-28
+- Update to `ghc-lib-0.20210228`
+
+## 9.0.0.3 released 2021-02-08
+- Cabal bugfix
+
+## 9.0.0.2 released 2021-02-08
+- Cabal bugfix
+
+## 8.10.0.19 released 2021-02-08
+- Cabal bugfix
+
 ## 8.10.0.18 released 2021-02-06
 - Update to ghc-8.10.4.
 
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # ghc-lib-parser-ex [![License BSD3](https://img.shields.io/badge/license-BSD3-brightgreen.svg)](http://opensource.org/licenses/BSD-3-Clause) [![Hackage version](https://img.shields.io/hackage/v/ghc-lib-parser-ex.svg?label=Hackage)](https://hackage.haskell.org/package/ghc-lib-parser-ex) [![Stackage version](https://www.stackage.org/package/ghc-lib-parser-ex/badge/nightly?label=Stackage)](https://www.stackage.org/package/ghc-lib-parser-ex)  [![Build Status](https://shayne-fletcher.visualstudio.com/ghc-lib-parser-ex/_apis/build/status/shayne-fletcher.ghc-lib-parser-ex?branchName=master)](https://shayne-fletcher.visualstudio.com/ghc-lib-parser-ex/_build/latest?definitionId=1&branchName=master)
-Copyright © 2020, Shayne Fletcher. All rights reserved.
+Copyright © 2020-2021 Shayne Fletcher. All rights reserved.
 SPDX-License-Identifier: BSD-3-Clause
 
 The `ghc-lib-parser-ex` package contains GHC API parse tree utilities. It works with or without [`ghc-lib-parser`](https://github.com/digital-asset/ghc-lib).
diff --git a/cbits/ghclib_api.h b/cbits/ghclib_api.h
--- a/cbits/ghclib_api.h
+++ b/cbits/ghclib_api.h
@@ -1,15 +1,21 @@
 /*
-Copyright (c) 2020, Shayne Fletcher. All rights
-reserved. SPDX-License-Identifier: BSD-3-Clause.
+Copyright (c) 2020, 2021 Shayne Fletcher. All rights reserved.
+SPDX-License-Identifier: BSD-3-Clause.
  */
 
 #if !defined(GHCLIB_API_H)
 #  define GHCLIB_API_H
 
-#  if !defined (GHCLIB_API_HEAD) && !defined (GHCLIB_API_900) && !defined (GHCLIB_API_810) && !defined (GHCLIB_API_808)
+#  if !(defined (GHCLIB_API_HEAD)   \
+     || defined (GHCLIB_API_902)    \
+     || defined (GHCLIB_API_900)    \
+     || defined (GHCLIB_API_810)    \
+     || defined (GHCLIB_API_808))
 #    if defined(MIN_VERSION_ghc_lib_parser)
 #       if !MIN_VERSION_ghc_lib_parser( 1,  0,  0)
 #         define GHCLIB_API_HEAD
+#       elif MIN_VERSION_ghc_lib_parser(9,  2,  0)
+#         define GHCLIB_API_902
 #       elif MIN_VERSION_ghc_lib_parser(9,  0,  0)
 #         define GHCLIB_API_900
 #       elif MIN_VERSION_ghc_lib_parser(8, 10,  0)
@@ -20,8 +26,10 @@
 #         error Unsupported GHC API version
 #      endif
 #    else
-#      if __GLASGOW_HASKELL__   == 811
+#      if __GLASGOW_HASKELL__   == 903
 #        define GHCLIB_API_HEAD
+#      elif __GLASGOW_HASKELL__ == 902
+#        define GHCLIB_API_902
 #      elif __GLASGOW_HASKELL__ == 900
 #        define GHCLIB_API_900
 #      elif __GLASGOW_HASKELL__ == 810
@@ -33,5 +41,4 @@
 #      endif
 #    endif
 #  endif
-
 #endif
diff --git a/ghc-lib-parser-ex.cabal b/ghc-lib-parser-ex.cabal
--- a/ghc-lib-parser-ex.cabal
+++ b/ghc-lib-parser-ex.cabal
@@ -1,6 +1,6 @@
 cabal-version: >= 1.18
 name:           ghc-lib-parser-ex
-version:        8.10.0.19
+version:        8.10.0.20
 description:    Please see the README on GitHub at <https://github.com/shayne-fletcher/ghc-lib-parser-ex#readme>
 homepage:       https://github.com/shayne-fletcher/ghc-lib-parser-ex#readme
 bug-reports:    https://github.com/shayne-fletcher/ghc-lib-parser-ex/issues
@@ -63,15 +63,15 @@
       uniplate >= 1.5,
       bytestring >= 0.10.8.2,
       containers >= 0.5.8.1
-  if flag(auto) && impl(ghc >= 8.10.0) && impl(ghc < 8.11.0)
+  if flag(auto) && impl(ghc >= 9.0.0) && impl(ghc < 9.1.0)
     build-depends:
-      ghc == 8.10.*,
+      ghc == 9.0.*,
       ghc-boot-th,
       ghc-boot
   else
     if flag(auto)
       build-depends:
-        ghc-lib-parser == 8.10.*
+        ghc-lib-parser == 9.0.*
     else
       if flag(no-ghc-lib)
         build-depends:
@@ -107,15 +107,15 @@
     , extra >=1.6
     , uniplate >= 1.6.12
     , ghc-lib-parser-ex
-  if flag(auto) && impl(ghc >= 8.10.0) && impl(ghc < 8.11.1)
+  if flag(auto) && impl(ghc >= 9.0.0) && impl(ghc < 9.1.0)
     build-depends:
-      ghc == 8.10.*,
+      ghc == 9.0.*,
       ghc-boot-th,
       ghc-boot
   else
     if flag(auto)
       build-depends:
-        ghc-lib-parser
+        ghc-lib-parser == 9.0.*
     else
       if flag(no-ghc-lib)
         build-depends:
diff --git a/src/Language/Haskell/GhclibParserEx/Dump.hs b/src/Language/Haskell/GhclibParserEx/Dump.hs
--- a/src/Language/Haskell/GhclibParserEx/Dump.hs
+++ b/src/Language/Haskell/GhclibParserEx/Dump.hs
@@ -12,12 +12,15 @@
 #include "ghclib_api.h"
 module Language.Haskell.GhclibParserEx.Dump(
     showAstData
-  , BlankSrcSpan(..),
+  , BlankSrcSpan(..)
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  , BlankEpAnnotations(..)
+#endif
 ) where
 
 #if !defined(MIN_VERSION_ghc_lib_parser)
 -- Using native ghc.
-#  if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_810)
+#  if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined(GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs.Dump
 #  else
 import HsDumpAst
@@ -25,7 +28,7 @@
 #else
 -- Using ghc-lib-parser. Recent versions will include
 -- GHC.Hs.Dump (it got moved in from ghc-lib on 2020-02-05).
-# if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+# if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs.Dump
 #  else
 -- For simplicity, just assume it's missing from 8.8 ghc-lib-parser
@@ -40,7 +43,7 @@
 import Name
 import DataCon
 import SrcLoc
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
diff --git a/src/Language/Haskell/GhclibParserEx/Fixity.hs b/src/Language/Haskell/GhclibParserEx/Fixity.hs
--- a/src/Language/Haskell/GhclibParserEx/Fixity.hs
+++ b/src/Language/Haskell/GhclibParserEx/Fixity.hs
@@ -16,9 +16,9 @@
   , infixr_, infixl_, infix_, fixity
   ) where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Hs
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
 import GHC.Types.Fixity
 import GHC.Types.SourceText
 #else
@@ -44,7 +44,7 @@
 import Data.Data hiding (Fixity)
 import Data.Generics.Uniplate.Data
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 noExt :: NoExtField
 noExt = noExtField
 #endif
@@ -64,7 +64,7 @@
 -- LPat and Pat have gone through a lot of churn. See
 -- https://gitlab.haskell.org/ghc/ghc/merge_requests/1925 for details.
 patFix :: [(String, Fixity)] -> LPat GhcPs -> LPat GhcPs
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 patFix fixities (L loc (ConPat _ op (InfixCon pat1 pat2))) =
   L loc (mkConOpPat (getFixities fixities) op (findFixity' (getFixities fixities) op) pat1 pat2)
 #elif defined (GHCLIB_API_810)
@@ -78,29 +78,40 @@
 
 mkConOpPat ::
   [(String, Fixity)]
-  -> Located RdrName -> Fixity
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  -> LocatedN RdrName
+#else
+  -> Located RdrName
+#endif
+  -> Fixity
   -> LPat GhcPs -> LPat GhcPs
   -> Pat GhcPs
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 mkConOpPat fs op2 fix2 p1@(L loc (ConPat _ op1 (InfixCon p11 p12))) p2
 #elif defined (GHCLIB_API_810)
 mkConOpPat fs op2 fix2 p1@(L loc (ConPatIn op1 (InfixCon p11 p12))) p2
 #else
 mkConOpPat fs op2 fix2 p1@(dL->L loc (ConPatIn op1 (InfixCon p11 p12))) p2
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | nofix_error = ConPat noAnn op2 (InfixCon p1 p2)
+#elif defined (GHCLIB_API_900)
   | nofix_error = ConPat noExtField op2 (InfixCon p1 p2)
 #else
   | nofix_error = ConPatIn op2 (InfixCon p1 p2)
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | associate_right = ConPat noAnn op1 (InfixCon p11 (L loc (mkConOpPat fs op2 fix2 p12 p2)))
+#elif defined (GHCLIB_API_900)
   | associate_right = ConPat noExtField op1 (InfixCon p11 (L loc (mkConOpPat fs op2 fix2 p12 p2)))
 #elif defined (GHCLIB_API_810)
   | associate_right = ConPatIn op1 (InfixCon p11 (L loc (mkConOpPat fs op2 fix2 p12 p2)))
 #else
   | associate_right = ConPatIn op1 (InfixCon p11 (cL loc (mkConOpPat fs op2 fix2 p12 p2)))
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | otherwise = ConPat noAnn op2 (InfixCon p1 p2)
+#elif defined (GHCLIB_API_900)
   | otherwise = ConPat noExtField op2 (InfixCon p1 p2)
 #else
   | otherwise = ConPatIn op2 (InfixCon p1 p2)
@@ -108,41 +119,75 @@
   where
     fix1 = findFixity' fs op1
     (nofix_error, associate_right) = compareFixity fix1 fix2
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+mkConOpPat _ op _ p1 p2 = ConPat noAnn op (InfixCon p1 p2)
+#elif defined (GHCLIB_API_900)
 mkConOpPat _ op _ p1 p2 = ConPat noExtField op (InfixCon p1 p2)
 #else
 mkConOpPat _ op _ p1 p2 = ConPatIn op (InfixCon p1 p2)
 #endif
 
 mkOpApp ::
-  [(String, Fixity)]
-  -> SrcSpan
-  -> LHsExpr GhcPs -- Left operand; already rearrange.
-  -> LHsExpr GhcPs -> Fixity -- Operator and fixity.
-  -> LHsExpr GhcPs -- Right operand (not an OpApp, but might be a NegApp).
-  -> LHsExpr GhcPs
+   [(String, Fixity)]
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+   -> SrcSpanAnnA
+#else
+   -> SrcSpan
+#endif
+   -> LHsExpr GhcPs -- Left operand; already rearrange.
+   -> LHsExpr GhcPs -> Fixity -- Operator and fixity.
+   -> LHsExpr GhcPs -- Right operand (not an OpApp, but might be a NegApp).
+   -> LHsExpr GhcPs
 --      (e11 `op1` e12) `op2` e2
 mkOpApp fs loc e1@(L _ (OpApp x1 e11 op1 e12)) op2 fix2 e2
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | nofix_error = L loc (OpApp noAnn e1 op2 e2)
+#else
   | nofix_error = L loc (OpApp noExt e1 op2 e2)
+#endif
   | associate_right = L loc (OpApp x1 e11 op1 (mkOpApp fs loc' e12 op2 fix2 e2 ))
   where
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+    loc'= combineLocsA e12 e2
+#else
     loc'= combineLocs e12 e2
+#endif
     fix1 = findFixity fs op1
     (nofix_error, associate_right) = compareFixity fix1 fix2
 --      (- neg_arg) `op` e2
 mkOpApp fs loc e1@(L _ (NegApp _ neg_arg neg_name)) op2 fix2 e2
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | nofix_error = L loc (OpApp noAnn e1 op2 e2)
+#else
   | nofix_error = L loc (OpApp noExt e1 op2 e2)
+#endif
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | associate_right = L loc (NegApp noAnn (mkOpApp fs loc' neg_arg op2 fix2 e2) neg_name)
+#else
   | associate_right = L loc (NegApp noExt (mkOpApp fs loc' neg_arg op2 fix2 e2) neg_name)
+#endif
   where
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+    loc' = combineLocsA neg_arg e2
+#else
     loc' = combineLocs neg_arg e2
+#endif
     (nofix_error, associate_right) = compareFixity negateFixity fix2
 --      e1 `op` - neg_arg
 mkOpApp _ loc e1 op1 fix1 e2@(L _ NegApp {}) -- NegApp can occur on the right.
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  | not associate_right  = L loc (OpApp noAnn e1 op1 e2)-- We *want* right association.
+#else
   | not associate_right  = L loc (OpApp noExt e1 op1 e2)-- We *want* right association.
+#endif
   where
     (_, associate_right) = compareFixity fix1 negateFixity
  --     Default case, no rearrangment.
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+mkOpApp _ loc e1 op _fix e2 = L loc (OpApp noAnn e1 op e2)
+#else
 mkOpApp _ loc e1 op _fix e2 = L loc (OpApp noExt e1 op e2)
+#endif
 
 getIdent :: LHsExpr GhcPs -> String
 getIdent (unLoc -> HsVar _ (L _ n)) = occNameString . rdrNameOcc $ n
@@ -155,7 +200,11 @@
 findFixity :: [(String, Fixity)] -> LHsExpr GhcPs -> Fixity
 findFixity fs r = askFix fs (getIdent r) -- Expressions.
 
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+findFixity' :: [(String, Fixity)] -> LocatedN RdrName -> Fixity
+#else
 findFixity' :: [(String, Fixity)] -> Located RdrName -> Fixity
+#endif
 findFixity' fs r = askFix fs (occNameString . rdrNameOcc . unLoc $ r) -- Patterns.
 
 askFix :: [(String, Fixity)] -> String -> Fixity
@@ -213,12 +262,14 @@
 fixity :: FixityDirection -> Int -> [String] -> [(String, Fixity)]
 fixity a p = map (,Fixity (SourceText "") p a)
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 fixitiesFromModule :: Located HsModule -> [(String, Fixity)]
 #else
 fixitiesFromModule :: Located (HsModule GhcPs) -> [(String, Fixity)]
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+fixitiesFromModule (L _ (HsModule _ _ _ _ _ decls _ _)) = concatMap f decls
+#elif defined (GHCLIB_API_900)
 fixitiesFromModule (L _ (HsModule _ _ _ _ decls _ _)) = concatMap f decls
 #else
 fixitiesFromModule (L _ (HsModule _ _ _ decls _ _)) = concatMap f decls
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Driver/Flags.hs b/src/Language/Haskell/GhclibParserEx/GHC/Driver/Flags.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Driver/Flags.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Driver/Flags.hs
@@ -3,7 +3,7 @@
 #include "ghclib_api.h"
 module Language.Haskell.GhclibParserEx.GHC.Driver.Flags () where
 
-#if !defined (GHCLIB_API_HEAD) && !defined (GHCLIB_API_900)
+#if !(defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900))
 import DynFlags
 #endif
 
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Driver/Session.hs b/src/Language/Haskell/GhclibParserEx/GHC/Driver/Session.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Driver/Session.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Driver/Session.hs
@@ -17,12 +17,12 @@
 #if defined (GHCLIB_API_808) || defined (GHCLIB_API_810)
 import qualified GHC.LanguageExtensions as LangExt
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Utils.Panic
 import GHC.Parser.Header
 import GHC.Data.StringBuffer
 import GHC.Driver.Session
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
 import GHC.Types.SourceError
 #else
 import GHC.Driver.Types
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs.hs
@@ -9,7 +9,7 @@
  )
 where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Hs
 import GHC.Unit.Module
 import GHC.Types.SrcLoc
@@ -23,7 +23,7 @@
 import SrcLoc
 #endif
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900)
 modName :: Located HsModule -> String
 #else
 modName :: Located (HsModule GhcPs) -> String
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Binds.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Binds.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Binds.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Binds.hs
@@ -7,7 +7,7 @@
   )
 where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs.Binds
 import GHC.Hs.Extension
 #else
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Decls.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Decls.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Decls.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Decls.hs
@@ -7,12 +7,12 @@
     isNewType, isForD, isDerivD, isClsDefSig
   ) where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Types.SrcLoc
 #else
 import SrcLoc
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Expr.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Expr.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Expr.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Expr.hs
@@ -16,13 +16,13 @@
   fromChar
   ) where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
 import GHC.Types.SourceText
 #endif
 import GHC.Types.SrcLoc
@@ -69,7 +69,11 @@
   (L _ HsLam{}) -> True
   (L _ ExplicitTuple{}) -> True
   (L _ ExplicitList{}) -> True
+#if defined (GHCLIB_API_HEAD)
+  (L _ (HsPar _ _ x _)) -> isWHNF x
+#else
   (L _ (HsPar _ x)) -> isWHNF x
+#endif
   (L _ (ExprWithTySig _ x _)) -> isWHNF x
   -- Other (unknown) constructors may have bang patterns in them, so
   -- approximate.
@@ -78,7 +82,7 @@
   _ -> False
 isLCase = \case (L _ HsLamCase{}) -> True; _ -> False
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_901)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_901)
 isStrictMatch :: HsMatchContext GhcPs -> Bool
 #else
 isStrictMatch :: HsMatchContext RdrName -> Bool
@@ -86,13 +90,22 @@
 isStrictMatch = \case FunRhs{mc_strictness=SrcStrict} -> True; _ -> False
 
 -- Field is punned e.g. '{foo}'.
+#if defined (GHCLIB_API_HEAD)
+isFieldPun :: LHsFieldBind GhcPs (LFieldOcc GhcPs) (LHsExpr GhcPs) -> Bool
+isFieldPun = \case (L _ HsFieldBind {hfbPun=True}) -> True; _ -> False
+#else
 isFieldPun :: LHsRecField GhcPs (LHsExpr GhcPs) -> Bool
 isFieldPun = \case (L _ HsRecField {hsRecPun=True}) -> True; _ -> False
-
+#endif
 -- Field puns in updates have a different type to field puns in
 -- constructions.
+#if defined (GHCLIB_API_HEAD)
+isFieldPunUpdate :: HsFieldBind (FieldOcc GhcPs) (LHsExpr GhcPs) -> Bool
+isFieldPunUpdate = \case HsFieldBind {hfbPun=True} -> True; _ -> False
+#else
 isFieldPunUpdate :: HsRecField' (AmbiguousFieldOcc GhcPs) (LHsExpr GhcPs) -> Bool
 isFieldPunUpdate = \case HsRecField {hsRecPun=True} -> True; _ -> False
+#endif
 
 -- Contains a '..' as in 'Foo{..}'
 hasFieldsDotDot :: HsRecFields GhcPs (LHsExpr GhcPs) -> Bool
@@ -104,7 +117,7 @@
 isParComp :: StmtLR GhcPs GhcPs (LHsExpr GhcPs) -> Bool
 isParComp = \case ParStmt{} -> True; _ -> False
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 isMDo :: HsStmtContext GhcRn -> Bool
 isMDo = \case MDoExpr _ -> True; _ -> False
 #else
@@ -143,24 +156,40 @@
 isTransStmt = \case TransStmt{} -> True; _ -> False
 
 -- Field has a '_' as in '{foo=_} or is punned e.g. '{foo}'.
+#if defined (GHCLIB_API_HEAD)
+isFieldWildcard :: LHsFieldBind GhcPs (LFieldOcc GhcPs) (LHsExpr GhcPs) -> Bool
+#else
 isFieldWildcard :: LHsRecField GhcPs (LHsExpr GhcPs) -> Bool
+#endif
 isFieldWildcard = \case
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD)
+  (L _ HsFieldBind {hfbRHS=(L _ (HsUnboundVar _ s))}) -> occNameString s == "_"
+#elif defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
   (L _ HsRecField {hsRecFieldArg=(L _ (HsUnboundVar _ s))}) -> occNameString s == "_"
 #elif defined (GHCLIB_API_810)
   (L _ HsRecField {hsRecFieldArg=(L _ (HsUnboundVar _ _))}) -> True
 #else
   (L _ HsRecField {hsRecFieldArg=(L _ (EWildPat _))}) -> True
 #endif
+#if defined (GHCLIB_API_HEAD)
+  (L _ HsFieldBind {hfbPun=True}) -> True
+  (L _ HsFieldBind {}) -> False
+#else
   (L _ HsRecField {hsRecPun=True}) -> True
   (L _ HsRecField {}) -> False
+#endif
 
 isUnboxed :: Boxity -> Bool
 isUnboxed = \case Unboxed -> True; _ -> False
 
 isWholeFrac :: HsExpr GhcPs -> Bool
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+isWholeFrac (HsLit _ (HsRat _ fl@FL{} _)) = denominator (rationalFromFractionalLit fl) == 1
+isWholeFrac (HsOverLit _ (OverLit _ (HsFractional fl@FL {}) _)) = denominator (rationalFromFractionalLit fl) == 1
+#else
 isWholeFrac (HsLit _ (HsRat _ (FL _ _ v) _)) = denominator v == 1
 isWholeFrac (HsOverLit _ (OverLit _ (HsFractional (FL _ _ v)) _)) = denominator v == 1
+#endif
 isWholeFrac _ = False
 
 varToStr :: LHsExpr GhcPs -> String
@@ -172,7 +201,9 @@
 varToStr _ = ""
 
 strToVar :: String -> LHsExpr GhcPs
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+strToVar x = noLocA $ HsVar noExtField (noLocA $ mkRdrUnqual (mkVarOcc x))
+#elif defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 strToVar x = noLoc $ HsVar noExtField (noLoc $ mkRdrUnqual (mkVarOcc x))
 #else
 strToVar x = noLoc $ HsVar noExt (noLoc $ mkRdrUnqual (mkVarOcc x))
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/ExtendInstances.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/ExtendInstances.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/ExtendInstances.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/ExtendInstances.hs
@@ -18,9 +18,9 @@
 -- representations rather than the terms themselves, leads to
 -- identical results.
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Utils.Outputable
-#  if !defined(GHCLIB_API_900)
+#  if !defined(GHCLIB_API_HEAD) && !defined(GHCLIB_API_900)
 import GHC.Driver.Ppr
 #  endif
 #else
@@ -42,8 +42,8 @@
 -- string representations.
 toStr :: Data a => HsExtendInstances a -> String
 toStr (HsExtendInstances e) =
-#if defined(GHCLIB_API_HEAD)
-  showPprUnsafe $ showAstData BlankSrcSpan e
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+  showPprUnsafe $ showAstData BlankSrcSpan BlankEpAnnotations e
 #else
   showSDocUnsafe $ showAstData BlankSrcSpan e
 #endif
@@ -60,7 +60,7 @@
 -- Use 'ppr' for 'Show'.
 instance Outputable a => Show (HsExtendInstances a) where
   show (HsExtendInstances e) =
-#if defined(GHCLIB_API_HEAD)
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
     showPprUnsafe $ ppr e
 #else
     showSDocUnsafe $ ppr e
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/ImpExp.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/ImpExp.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/ImpExp.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/ImpExp.hs
@@ -14,7 +14,7 @@
   )
 where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Hs.ImpExp
 import GHC.Types.Name.Reader
 #elif defined (GHCLIB_API_810)
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Pat.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Pat.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Pat.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Pat.hs
@@ -11,12 +11,12 @@
   , isPFieldWildcard, isPWildcard, isPFieldPun, isPatTypeSig, isPBangPat, isPViewPat
  ) where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Types.SrcLoc
 import GHC.Builtin.Types
 import GHC.Types.Name.Reader
@@ -31,7 +31,7 @@
 #endif
 
 patToStr :: LPat GhcPs -> String
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
 patToStr (L _ (ConPat _ (L _ x) (PrefixCon [] []))) | occNameString (rdrNameOcc x) == "True" = "True"
 patToStr (L _ (ConPat _ (L _ x) (PrefixCon [] []))) | occNameString (rdrNameOcc x) == "False" = "False"
 patToStr (L _ (ConPat _ (L _ x) (PrefixCon [] []))) | occNameString (rdrNameOcc x) == "[]" = "[]"
@@ -56,47 +56,55 @@
 strToPat :: String -> LPat GhcPs
 strToPat z
   | z == "True"  =
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+  noLocA $
+#elif defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
   noLoc $
 #endif
-#if defined (GHCLIB_API_HEAD)
-    ConPat noExtField (noLoc true_RDR) (PrefixCon [] [])
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+    ConPat noAnn (noLocA true_RDR) (PrefixCon [] [])
 #elif defined (GHCLIB_API_900)
     ConPat noExtField (noLoc true_RDR) (PrefixCon [])
 #else
     ConPatIn (noLoc true_RDR) (PrefixCon [])
 #endif
   | z == "False" =
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+  noLocA $
+#elif defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
   noLoc $
 #endif
-#if defined (GHCLIB_API_HEAD)
-    ConPat noExtField (noLoc false_RDR) (PrefixCon [] [])
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+    ConPat noAnn (noLocA false_RDR) (PrefixCon [] [])
 #elif defined (GHCLIB_API_900)
     ConPat noExtField (noLoc false_RDR) (PrefixCon [])
 #else
     ConPatIn (noLoc false_RDR) (PrefixCon [])
 #endif
   | z == "[]"    =
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+  noLocA $
+#elif defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
   noLoc $
 #endif
-#if defined (GHCLIB_API_HEAD)
-    ConPat noExtField (noLoc $ nameRdrName nilDataConName) (PrefixCon [] [])
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+    ConPat noAnn (noLocA $ nameRdrName nilDataConName) (PrefixCon [] [])
 #elif defined (GHCLIB_API_900)
     ConPat noExtField (noLoc $ nameRdrName nilDataConName) (PrefixCon [])
 #else
     ConPatIn (noLoc $ nameRdrName nilDataConName) (PrefixCon [])
 #endif
   | otherwise =
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+      noLocA $ VarPat noExtField (noLocA $ mkVarUnqual (fsLit z))
+#elif defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
       noLoc $ VarPat noExtField (noLoc $ mkVarUnqual (fsLit z))
 #else
       VarPat noExt (noLoc $ mkVarUnqual (fsLit z))
 #endif
 
 fromPChar :: LPat GhcPs -> Maybe Char
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 fromPChar (L _ (LitPat _ (HsChar _ x))) = Just x
 #else
 fromPChar (dL -> L _ (LitPat _ (HsChar _ x))) = Just x
@@ -109,8 +117,16 @@
 hasPFieldsDotDot _ = False
 
 -- Field has a '_' as in '{foo=_} or is punned e.g. '{foo}'.
+#if defined (GHCLIB_API_HEAD)
+isPFieldWildcard :: LHsFieldBind GhcPs (LFieldOcc GhcPs) (LPat GhcPs) -> Bool
+#else
 isPFieldWildcard :: LHsRecField GhcPs (LPat GhcPs) -> Bool
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#endif
+#if defined (GHCLIB_API_HEAD)
+isPFieldWildcard (L _ HsFieldBind {hfbRHS=L _ WildPat {}}) = True
+isPFieldWildcard (L _ HsFieldBind {hfbPun=True}) = True
+isPFieldWildcard (L _ HsFieldBind {}) = False
+#elif defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 isPFieldWildcard (L _ HsRecField {hsRecFieldArg=L _ WildPat {}}) = True
 isPFieldWildcard (L _ HsRecField {hsRecPun=True}) = True
 isPFieldWildcard (L _ HsRecField {}) = False
@@ -121,15 +137,21 @@
 #endif
 
 isPWildcard :: LPat GhcPs -> Bool
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 isPWildcard (L _ (WildPat _)) = True
 #else
 isPWildcard (dL -> L _ (WildPat _)) = True
 #endif
 isPWildcard _ = False
 
+#if defined (GHCLIB_API_HEAD)
+isPFieldPun :: LHsFieldBind GhcPs (LFieldOcc GhcPs) (LPat GhcPs) -> Bool
+#else
 isPFieldPun :: LHsRecField GhcPs (LPat GhcPs) -> Bool
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#endif
+#if defined (GHCLIB_API_HEAD)
+isPFieldPun (L _ HsFieldBind {hfbPun=True}) = True
+#elif defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 isPFieldPun (L _ HsRecField {hsRecPun=True}) = True
 #else
 isPFieldPun (dL -> L _ HsRecField {hsRecPun=True}) = True
@@ -137,7 +159,7 @@
 isPFieldPun _ = False
 
 isPatTypeSig, isPBangPat, isPViewPat :: LPat GhcPs -> Bool
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 isPatTypeSig (L _ SigPat{}) = True; isPatTypeSig _ = False
 isPBangPat (L _ BangPat{}) = True; isPBangPat _ = False
 isPViewPat (L _ ViewPat{}) = True; isPViewPat _ = False
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Types.hs b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Types.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Hs/Types.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Hs/Types.hs
@@ -8,12 +8,12 @@
   , isTyQuasiQuote, isUnboxedTuple
   ) where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Types.SrcLoc
 #else
 import SrcLoc
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Parser.hs b/src/Language/Haskell/GhclibParserEx/GHC/Parser.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Parser.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Parser.hs
@@ -22,15 +22,15 @@
   )
   where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
 #endif
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
 import GHC.Driver.Config
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Parser.PostProcess
 import GHC.Driver.Session
 import GHC.Data.StringBuffer
@@ -64,19 +64,19 @@
     location = mkRealSrcLoc (mkFastString "<string>") 1 1
     buffer = stringToStringBuffer str
     parseState =
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
       initParserState (initParserOpts flags) buffer location
 #else
       mkPState flags buffer location
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 parseModule :: String -> DynFlags -> ParseResult (Located HsModule)
 #else
 parseModule :: String -> DynFlags -> ParseResult (Located (HsModule GhcPs))
 #endif
 parseModule = parse Parser.parseModule
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 parseSignature :: String -> DynFlags -> ParseResult (Located HsModule)
 #else
 parseSignature :: String -> DynFlags -> ParseResult (Located (HsModule GhcPs))
@@ -96,10 +96,16 @@
 parseDeclaration = parse Parser.parseDeclaration
 
 parseExpression :: String -> DynFlags -> ParseResult (LHsExpr GhcPs)
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
 parseExpression s flags =
+  -- The need for annotations here came about first manifested with
+  -- ghc-9.0.1
   case parse Parser.parseExpression s flags of
-    POk s e -> unP (runPV . unECP $ e) s
+    POk state e ->
+      let e' = e :: ECP
+          parser_validator = unECP e' :: PV (LHsExpr GhcPs)
+          parser = runPV parser_validator :: P (LHsExpr GhcPs)
+      in unP parser state :: ParseResult (LHsExpr GhcPs)
     PFailed ps -> PFailed ps
 #elif defined (GHCLIB_API_810) || defined (GHCLIB_API_900)
 parseExpression s flags =
@@ -119,20 +125,24 @@
 parseStmt :: String -> DynFlags -> ParseResult (Maybe (LStmt GhcPs (LHsExpr GhcPs)))
 parseStmt = parse Parser.parseStmt
 
+#if defined(GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
+parseIdentifier :: String -> DynFlags -> ParseResult (LocatedN RdrName)
+#else
 parseIdentifier :: String -> DynFlags -> ParseResult (Located RdrName)
+#endif
 parseIdentifier = parse Parser.parseIdentifier
 
 parseType :: String -> DynFlags -> ParseResult (LHsType GhcPs)
 parseType = parse Parser.parseType
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 parseHeader :: String -> DynFlags -> ParseResult (Located HsModule)
 #else
 parseHeader :: String -> DynFlags -> ParseResult (Located (HsModule GhcPs))
 #endif
 parseHeader = parse Parser.parseHeader
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 parseFile :: String
           -> DynFlags
           -> String
@@ -149,7 +159,7 @@
     location = mkRealSrcLoc (mkFastString filename) 1 1
     buffer = stringToStringBuffer str
     parseState =
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
       initParserState (initParserOpts flags) buffer location
 #else
       mkPState flags buffer location
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Settings/Config.hs b/src/Language/Haskell/GhclibParserEx/GHC/Settings/Config.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Settings/Config.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Settings/Config.hs
@@ -11,7 +11,7 @@
   )
 where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Settings.Config
 import GHC.Driver.Session
 import GHC.Utils.Fingerprint
@@ -32,12 +32,14 @@
 
 fakeSettings :: Settings
 fakeSettings = Settings
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)|| defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)|| defined (GHCLIB_API_810)
   { sGhcNameVersion=ghcNameVersion
   , sFileSettings=fileSettings
   , sTargetPlatform=platform
   , sPlatformMisc=platformMisc
+#  if !defined(GHCLIB_API_HEAD)
   , sPlatformConstants=platformConstants
+#  endif
   , sToolSettings=toolSettings
   }
 #else
@@ -49,7 +51,7 @@
   }
 #endif
   where
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)|| defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)|| defined (GHCLIB_API_810)
     toolSettings = ToolSettings {
       toolSettings_opt_P_fingerprint=fingerprint0
       }
@@ -62,7 +64,7 @@
 #endif
     platform =
       Platform{
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
     -- It doesn't matter what values we write here as these fields are
     -- not referenced for our purposes. However the fields are strict
     -- so we must say something.
@@ -73,12 +75,15 @@
       , platformIsCrossCompiling=False
       , platformLeadingUnderscore=False
       , platformTablesNextToCode=False
-#  if !defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD)
+      , platform_constants = Nothing
+#endif
+#if !defined(GHCLIB_API_HEAD) && !defined (GHCLIB_API_900)
       , platformConstants=platformConstants
-#  endif
+#endif
       ,
 #endif
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902)
         platformWordSize=PW8
       , platformArchOS=ArchOS {archOS_arch=ArchUnknown, archOS_OS=OSUnknown}
 #elif defined (GHCLIB_API_810) || defined (GHCLIB_API_900)
@@ -90,10 +95,12 @@
 #endif
       , platformUnregisterised=True
       }
+#if !defined(GHCLIB_API_HEAD)
     platformConstants =
       PlatformConstants{pc_DYNAMIC_BY_DEFAULT=False,pc_WORD_SIZE=8}
+#endif
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)|| defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)|| defined (GHCLIB_API_810)
 fakeLlvmConfig :: LlvmConfig
 fakeLlvmConfig = LlvmConfig [] []
 #else
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Types/Name/Reader.hs b/src/Language/Haskell/GhclibParserEx/GHC/Types/Name/Reader.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Types/Name/Reader.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Types/Name/Reader.hs
@@ -9,7 +9,11 @@
  )
 where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+import GHC.Parser.Annotation
+#endif
+
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Types.SrcLoc
 import GHC.Types.Name
 import GHC.Types.Name.Reader
@@ -23,21 +27,38 @@
 -- These names may not seem natural here but they work out in
 -- practice. The use of thse two functions is thoroughly ubiquitous.
 occNameStr :: RdrName -> String; occNameStr = occNameString . rdrNameOcc
-rdrNameStr :: Located RdrName -> String; rdrNameStr = occNameStr . unLoc
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+rdrNameStr :: GHC.Parser.Annotation.LocatedN RdrName -> String
+#else
+rdrNameStr :: Located RdrName -> String
+#endif
+rdrNameStr = occNameStr . unLoc
 
 -- Builtin type or data constructors.
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+isSpecial :: LocatedN RdrName -> Bool
+#else
 isSpecial :: Located RdrName -> Bool
+#endif
 isSpecial (L _ (Exact n)) = isDataConName n || isTyConName n
 isSpecial _ = False
 
 -- Coerce qualified names to unqualified (by discarding the
 -- qualifier).
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+unqual :: LocatedN RdrName -> LocatedN RdrName
+#else
 unqual :: Located RdrName -> Located RdrName
+#endif
 unqual (L loc (Qual _ n)) = L loc $ mkRdrUnqual n
 unqual x = x
 
 -- Extract the occ name from a qualified/unqualified reader name.
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+fromQual :: LocatedN RdrName -> Maybe OccName
+#else
 fromQual :: Located RdrName -> Maybe OccName
+#endif
 fromQual (L _ (Qual _ x)) = Just x
 fromQual (L _ (Unqual x)) = Just x
 fromQual _ = Nothing
diff --git a/src/Language/Haskell/GhclibParserEx/GHC/Utils/Outputable.hs b/src/Language/Haskell/GhclibParserEx/GHC/Utils/Outputable.hs
--- a/src/Language/Haskell/GhclibParserEx/GHC/Utils/Outputable.hs
+++ b/src/Language/Haskell/GhclibParserEx/GHC/Utils/Outputable.hs
@@ -8,9 +8,9 @@
 )
 where
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined(GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Utils.Outputable
-#if !defined (GHCLIB_API_900)
+#if !defined(GHCLIB_API_HEAD) && !defined (GHCLIB_API_900)
 import GHC.Driver.Ppr
 #endif
 #else
diff --git a/test/Test.hs b/test/Test.hs
--- a/test/Test.hs
+++ b/test/Test.hs
@@ -17,6 +17,12 @@
 import Data.List.Extra
 import Data.Maybe
 import Data.Generics.Uniplate.Data
+#if defined (GHCLIB_API_HEAD)
+import GHC.Data.Bag
+import GHC.Driver.Errors.Types
+import GHC.Types.Error hiding (getMessages)
+import qualified GHC.Types.Error (getMessages)
+#endif
 
 import Language.Haskell.GhclibParserEx.Dump
 import Language.Haskell.GhclibParserEx.Fixity
@@ -39,19 +45,23 @@
 import Language.Haskell.GhclibParserEx.GHC.Driver.Session
 import Language.Haskell.GhclibParserEx.GHC.Types.Name.Reader
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 import GHC.Hs
 #else
 import HsSyn
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900)
 import GHC.Types.SrcLoc
 import GHC.Driver.Session
 import GHC.Parser.Lexer
+# if !(defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902))
 import GHC.Utils.Outputable
+#endif
 #  if !defined (GHCLIB_API_900)
 import GHC.Driver.Ppr
+#    if !defined (GHCLIB_API_HEAD)
 import GHC.Parser.Errors.Ppr
+#    endif
 #  endif
 import GHC.Utils.Error
 import GHC.Types.Name.Reader
@@ -70,11 +80,6 @@
 import Bag
 #endif
 
-#if defined (GHCLIB_API_HEAD)
-showSDocUnsafe :: SDoc -> String
-showSDocUnsafe = showPprUnsafe
-#endif
-
 main :: IO ()
 main = do
   setEnv "TASTY_NUM_THREADS" "1"
@@ -98,70 +103,89 @@
     writeFile relPath contents
     return relPath
 
+#if defined (GHCLIB_API_HEAD)
+chkParseResult :: (DynFlags -> Bag (MsgEnvelope GhcMessage)  -> String) -> DynFlags -> ParseResult a -> IO ()
+#else
 chkParseResult :: (DynFlags -> WarningMessages -> String) -> DynFlags -> ParseResult a -> IO ()
+#endif
 chkParseResult report flags = \case
     POk s _ -> do
-#if defined (GHCLIB_API_HEAD)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
       let (wrns, errs) = getMessages s
 #else
       let (wrns, errs) = getMessages s flags
 #endif
       when (not (null errs) || not (null wrns)) $
 #if defined (GHCLIB_API_HEAD)
+        assertFailure (
+          report flags (GHC.Types.Error.getMessages (GhcPsMessage <$> wrns)) ++
+          report flags (GHC.Types.Error.getMessages (GhcPsMessage <$> errs))
+        )
+
+#elif defined (GHCLIB_API_902)
         assertFailure (report flags (fmap pprWarning wrns) ++ report flags (fmap pprError errs))
 #else
         assertFailure (report flags wrns ++ report flags errs)
 #endif
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
 #if defined (GHCLIB_API_HEAD)
+    PFailed s -> assertFailure (report flags $ GHC.Types.Error.getMessages (GhcPsMessage <$> snd (getMessages s)))
+#elif defined (GHCLIB_API_902)
     PFailed s -> assertFailure (report flags $ fmap pprError (snd (getMessages s)))
-#else
+#elif defined (GHCLIB_API_900) || defined (GHCLIB_API_810)
     PFailed s -> assertFailure (report flags $ snd (getMessages s flags))
-#endif
 #else
     PFailed _ loc err -> assertFailure (report flags $ unitBag $ mkPlainErrMsg flags loc err)
 #endif
 
 parseTests :: TestTree
 parseTests = testGroup "Parse tests"
-  [ testCase "Module" $
-      chkParseResult report flags $
+  [
+    testCase "Module" $
+      chkParseResult report flags (
         parseModule (unlines
           [ "module Foo (readMany) where"
           , "import Data.List"
           , "import Data.Maybe"
           , "readMany = unfoldr $ listToMaybe . concatMap reads . tails"
-          ]) flags
+          ]) flags)
+  , testCase "Module" $
+      chkParseResult report flags (
+        parseModule (unlines
+          [ "module Foo (readMany) where"
+          , "import Data.List"
+          , "import Data.Maybe"
+          , "readMany = unfoldr $ listToMaybe . concatMap reads . tails"
+          ]) flags)
   , testCase "Signature" $
-      chkParseResult report flags $
+      chkParseResult report flags (
         parseSignature (unlines
           [ "signature Str where"
           , "data Str"
           , "empty :: Str"
           , "append :: Str -> Str -> Str"
-          ]) flags
+          ]) flags)
   , testCase "Import" $
-      chkParseResult report flags $
-        parseImport "import qualified \"foo-lib\" Foo as Bar hiding ((<.>))" flags
+      chkParseResult report flags (
+        parseImport "import qualified \"foo-lib\" Foo as Bar hiding ((<.>))" flags)
   , testCase "Statement" $
-      chkParseResult report flags $
-        parseStatement "Foo foo <- bar" flags
+      chkParseResult report flags (
+        parseStatement "Foo foo <- bar" flags)
   , testCase "Backpack" $
-      chkParseResult report flags $
+      chkParseResult report flags (
         parseBackpack (unlines
           [ "unit main where"
           , "  module Main where"
           , "    main = putStrLn \"Hello world!\""
-          ]) flags
+          ]) flags)
   , testCase "Expression" $
-      chkParseResult report flags $
-        parseExpression "unfoldr $ listToMaybe . concatMap reads . tails" flags
+      chkParseResult report flags (
+        parseExpression "unfoldr $ listToMaybe . concatMap reads . tails" flags)
   , testCase "Declaration (1)" $
-      chkParseResult report flags $
-        parseDeclaration "fact n = if n <= 1 then 1 else n * fact (n - 1)" flags
+      chkParseResult report flags (
+        parseDeclaration "fact n = if n <= 1 then 1 else n * fact (n - 1)" flags)
   , testCase "Declaration (2)" $ -- Example from https://github.com/ndmitchell/hlint/issues/842.
-      chkParseResult report flags $
-        parseDeclaration "infixr 4 <%@~" flags
+      chkParseResult report flags (
+        parseDeclaration "infixr 4 <%@~" flags)
   , testCase "File" $ withTempDir $ \tmpDir -> do
       foo <- makeFile (tmpDir </> "Foo.hs") $ unlines
         ["{-# LANGUAGE ScopedTypeVariables #-}"
@@ -173,13 +197,17 @@
       s <- readFile' foo
       parsePragmasIntoDynFlags flags ([], []) foo s >>= \case
         Left msg -> assertFailure msg
-        Right flags -> chkParseResult report flags $ parseFile foo flags s
+        Right flags -> chkParseResult report flags (parseFile foo flags s)
   ]
   where
     flags = defaultDynFlags fakeSettings fakeLlvmConfig
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+    report flags msgs = concat [ showSDoc flags msg | msg <- pprMsgEnvelopeBagWithLoc msgs ]
+#else
     report flags msgs = concat [ showSDoc flags msg | msg <- pprErrMsgBagWithLoc msgs ]
+#endif
 
-#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_900)
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902) || defined (GHCLIB_API_900)
 moduleTest :: String -> DynFlags -> (Located HsModule -> IO ()) -> IO ()
 #else
 moduleTest :: String -> DynFlags -> (Located (HsModule GhcPs) -> IO ()) -> IO ()
@@ -207,15 +235,25 @@
       exprTest "1 + 2 * 3" flags
         (\e ->
             assertBool "parse tree not affected" $
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+              showSDocUnsafe (showAstData BlankSrcSpan BlankEpAnnotations e) /=
+              showSDocUnsafe (showAstData BlankSrcSpan BlankEpAnnotations (applyFixities [] e))
+#else
               showSDocUnsafe (showAstData BlankSrcSpan e) /=
               showSDocUnsafe (showAstData BlankSrcSpan (applyFixities [] e))
+#endif
         )
   , testCase "Pattern" $
       case parseDeclaration "f (1 : 2 :[]) = 1" flags of
         POk _ d ->
           assertBool "parse tree not affected" $
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+          showSDocUnsafe (showAstData BlankSrcSpan BlankEpAnnotations d) /=
+          showSDocUnsafe (showAstData BlankSrcSpan BlankEpAnnotations (applyFixities [] d))
+#else
           showSDocUnsafe (showAstData BlankSrcSpan d) /=
           showSDocUnsafe (showAstData BlankSrcSpan (applyFixities [] d))
+#endif
         PFailed{} -> assertFailure "parse error"
   , testCase "fixitiesFromModule" $
       case parseModule "infixl 4 <*!" flags of
@@ -253,8 +291,16 @@
   , testCase "isDot" $ test "f . g" $ \case L _ (OpApp _ _ op _) -> assert' $ isDot op; _ -> assertFailure "unexpected"
   , testCase "isReturn" $ test "return x" $ \case L _ (HsApp _ f _) -> assert' $ isReturn f; _ -> assertFailure "unexpected"
   , testCase "isReturn" $ test "pure x" $ \case L _ (HsApp _ f _) -> assert' $ isReturn f; _ -> assertFailure "unexpected"
+#if defined (GHCLIB_API_HEAD)
+  , testCase "isSection" $ test "(1 +)" $ \case L _ (HsPar _ _ x _) -> assert' $ isSection x; _ -> assertFailure "unexpected"
+#else
   , testCase "isSection" $ test "(1 +)" $ \case L _ (HsPar _ x) -> assert' $ isSection x; _ -> assertFailure "unexpected"
+#endif
+#if defined (GHCLIB_API_HEAD)
+  , testCase "isSection" $ test "(+ 1)" $ \case L _ (HsPar _ _ x _) -> assert' $ isSection x; _ -> assertFailure "unexpected"
+#else
   , testCase "isSection" $ test "(+ 1)" $ \case L _ (HsPar _ x) -> assert' $ isSection x; _ -> assertFailure "unexpected"
+#endif
   , testCase "isRecConstr" $ test "Foo {bar=1}" $ assert' . isRecConstr
   , testCase "isRecUpdate" $ test "foo {bar=1}" $ assert' . isRecUpdate
   , testCase "isVar" $ test "foo" $ assert' . isVar
@@ -365,7 +411,7 @@
       -- https://github.com/ndmitchell/hlint/issues/971).
       parsePragmasIntoDynFlags flags ([StarIsType], []) foo s >>= \case
         Left msg -> assertFailure msg
-        Right flags -> chkParseResult report flags $ parseFile foo flags s
+        Right flags -> chkParseResult report flags (parseFile foo flags s)
 #if defined (MIN_VERSION_ghc_lib_parser)
 #  if !MIN_VERSION_ghc_lib_parser(1,  0,  0) || MIN_VERSION_ghc_lib_parser(8, 10, 0)
   , testCase "ImportQualifiedPost" $ do
@@ -382,8 +428,11 @@
   ]
   where
     flags = defaultDynFlags fakeSettings fakeLlvmConfig
+#if defined (GHCLIB_API_HEAD) || defined (GHCLIB_API_902)
+    report flags msgs = concat [ showSDoc flags msg | msg <- pprMsgEnvelopeBagWithLoc msgs ]
+#else
     report flags msgs = concat [ showSDoc flags msg | msg <- pprErrMsgBagWithLoc msgs ]
-
+#endif
 nameTests :: TestTree
 nameTests = testGroup "Name tests"
   [ testCase "modName (1)" $