diff --git a/CHANGELOG.md b/CHANGELOG.md
index c65c61022..9ed214440 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,18 @@ title: Releases
 
 # Releases
 
+## Unreleased
+
+- Fixed an issue where compressing CSS with `clamp` expressions would 
+    result in invalid CSS (#1021) (contribution by Laurent P. René de Cotret)
+
+## Hakyll 4.16.3.0 (2024-10-24)
+
+- Bump `pandoc` upper bound to include up to version 3.5
+    (#1041, #1042, #1047) (contributions by Alexander Batischev)
+- Add `renderPandocItemWithTransformM` and `pandocItemCompilerWithTransformM`
+    (#1020) (contribution by Tony Zorman)
+
 ## Hakyll 4.16.2.2 (2024-07-05)
 
 - Bump `tasty-quickcheck` upper bound to 0.12 (contribution by Alexander
diff --git a/hakyll.cabal b/hakyll.cabal
index 84175aa2f..5a8de94fe 100644
--- a/hakyll.cabal
+++ b/hakyll.cabal
@@ -1,5 +1,5 @@
 Name:    hakyll
-Version: 4.16.2.2
+Version: 4.16.3.0
 
 Synopsis: A static website compiler library
 Description:
@@ -254,7 +254,7 @@ Library
     Other-Modules:
       Hakyll.Web.Pandoc.Binary
     Build-Depends:
-      pandoc >= 2.11 && < 2.20 || >= 3.0 && < 3.5
+      pandoc >= 2.11 && < 2.20 || >= 3.0 && < 3.6
     Cpp-options:
       -DUSE_PANDOC
 
@@ -321,7 +321,7 @@ Test-suite hakyll-tests
     Cpp-options:
       -DUSE_PANDOC
     Build-Depends:
-      pandoc >= 2.11 && < 2.20 || >= 3.0 && < 3.5
+      pandoc >= 2.11 && < 2.20 || >= 3.0 && < 3.6
 
 
 Executable hakyll-init
@@ -355,4 +355,4 @@ Executable hakyll-website
     base      >= 4.12  && < 5,
     directory >= 1.0   && < 1.4,
     filepath  >= 1.0   && < 1.6,
-    pandoc    >= 2.11  && < 2.20 || >= 3.0 && < 3.5
+    pandoc    >= 2.11  && < 2.20 || >= 3.0 && < 3.6
diff --git a/lib/Hakyll/Web/CompressCss.hs b/lib/Hakyll/Web/CompressCss.hs
index 4aa97e0d1..5e71916af 100644
--- a/lib/Hakyll/Web/CompressCss.hs
+++ b/lib/Hakyll/Web/CompressCss.hs
@@ -42,14 +42,17 @@ compressSeparators =
     replaceAll " *[{};,>+~!] *" (take 1 . dropWhile isSpace) .
     replaceAll ": *" (take 1) -- not destroying pseudo selectors (#323)
 
--- | Uses `compressCalcExpression` on all parenthesised calc expressions
--- and applies `transform` to all parts outside of them
+-- | Uses `compressExpression` on all parenthesised calc and 
+-- clamp expressions, and applies `transform` to all parts 
+-- outside of them
 handleCalcExpressions :: (String -> String) -> String -> String
 handleCalcExpressions transform = top transform
   where
-    top f ""                             = f ""
-    top f str | "calc(" `isPrefixOf` str = f "calc" ++ nested 0 compressCalcExpression (drop 4 str)
-    top f (x:xs)                         = top (f . (x:)) xs
+    top f ""                              = f ""
+    top f str | "calc(" `isPrefixOf` str  = f "calc"  ++ nested 0 compressExpression (drop 4 str)
+              -- See issue #1021
+              | "clamp(" `isPrefixOf` str = f "clamp" ++ nested 0 compressExpression (drop 5 str) 
+    top f (x:xs)                          = top (f . (x:)) xs
     
     -- when called with depth=0, the first character must be a '('
     nested :: Int -> (String -> String) -> String -> String
@@ -62,9 +65,10 @@ handleCalcExpressions transform = top transform
                                                       _   -> depth
                                                     ) (f . (x:)) xs
 
--- | does not remove whitespace around + and -, which is important in calc() expressions
-compressCalcExpression :: String -> String
-compressCalcExpression =
+-- | does not remove whitespace around + and -, which is important 
+-- in calc() and clamp() expressions
+compressExpression :: String -> String
+compressExpression =
     replaceAll " *[*/] *| *\\)|\\( *" (take 1 . dropWhile isSpace)
 
 --------------------------------------------------------------------------------
diff --git a/lib/Hakyll/Web/Pandoc.hs b/lib/Hakyll/Web/Pandoc.hs
index c26939074..e647f0bfa 100644
--- a/lib/Hakyll/Web/Pandoc.hs
+++ b/lib/Hakyll/Web/Pandoc.hs
@@ -10,12 +10,14 @@ module Hakyll.Web.Pandoc
     , renderPandocWith
     , renderPandocWithTransform
     , renderPandocWithTransformM
+    , renderPandocItemWithTransformM
 
       -- * Derived compilers
     , pandocCompiler
     , pandocCompilerWith
     , pandocCompilerWithTransform
     , pandocCompilerWithTransformM
+    , pandocItemCompilerWithTransformM
 
       -- * Default options
     , defaultHakyllReaderOptions
@@ -120,10 +122,12 @@ renderPandocWithTransform ropt wopt f =
 
 
 --------------------------------------------------------------------------------
--- | Similar to `renderPandocWithTransform`, but the Pandoc transformation is
+-- | Similar to 'renderPandocWithTransform', but the Pandoc transformation is
 -- monadic. This is useful when you want the pandoc
--- transformation to use the `Compiler` information such as routes,
+-- transformation to use the 'Compiler' information such as routes,
 -- metadata, etc. along with your own transformations beforehand.
+--
+-- @since 4.16.3.0
 renderPandocWithTransformM :: ReaderOptions -> WriterOptions
                     -> (Pandoc -> Compiler Pandoc)
                     -> Item String
@@ -132,6 +136,23 @@ renderPandocWithTransformM ropt wopt f i =
     writePandocWith wopt <$> (traverse f =<< readPandocWith ropt i)
 
 
+--------------------------------------------------------------------------------
+-- | Like 'renderPandocWithTransformM', but work on an @'Item' 'Pandoc'@ instead
+-- of just a 'Pandoc'. This allows for more seamless composition of functions
+-- that require the extra information that an 'Item' provides, like
+-- bibliographic transformations with
+-- 'Hakyll.Web.Pandoc.Biblio.processPandocBiblio'.
+--
+-- @since 4.16.3.0
+renderPandocItemWithTransformM
+  :: ReaderOptions -> WriterOptions
+  -> (Item Pandoc -> Compiler (Item Pandoc))
+  -> Item String
+  -> Compiler (Item String)
+renderPandocItemWithTransformM ropt wopt f i =
+    writePandocWith wopt <$> (f =<< readPandocWith ropt i)
+
+
 --------------------------------------------------------------------------------
 -- | Read a page render using pandoc
 pandocCompiler :: Compiler (Item String)
@@ -170,6 +191,20 @@ pandocCompilerWithTransformM ropt wopt f =
     getResourceBody >>= renderPandocWithTransformM ropt wopt f
 
 
+--------------------------------------------------------------------------------
+-- | Like 'pandocCompilerWithTransformM', but work on an 'Item' 'Pandoc'
+-- instead of just a 'Pandoc'. This allows for more seamless composition of
+-- functions that require the extra information that an 'Item' provides, like
+-- bibliographic transformations with
+-- 'Hakyll.Web.Pandoc.Biblio.processPandocBiblio'.
+pandocItemCompilerWithTransformM
+  :: ReaderOptions -> WriterOptions
+  -> (Item Pandoc -> Compiler (Item Pandoc))
+  -> Compiler (Item String)
+pandocItemCompilerWithTransformM ropt wopt f =
+    getResourceBody >>= renderPandocItemWithTransformM ropt wopt f
+
+
 --------------------------------------------------------------------------------
 -- | The default reader options for pandoc parsing in hakyll
 defaultHakyllReaderOptions :: ReaderOptions
diff --git a/tests/Hakyll/Core/Identifier/Tests.hs b/tests/Hakyll/Core/Identifier/Tests.hs
index 8f534a2b4..658d01f42 100644
--- a/tests/Hakyll/Core/Identifier/Tests.hs
+++ b/tests/Hakyll/Core/Identifier/Tests.hs
@@ -6,14 +6,16 @@ module Hakyll.Core.Identifier.Tests
 
 
 --------------------------------------------------------------------------------
+import qualified Test.QuickCheck                as Q
 import           Test.Tasty                     (TestTree, testGroup)
 import           Test.Tasty.HUnit               ((@=?))
+import           Test.Tasty.QuickCheck          (testProperty)
 
 
 --------------------------------------------------------------------------------
 import           Hakyll.Core.Identifier
 import           Hakyll.Core.Identifier.Pattern
-import           System.FilePath                ((</>))
+import           System.FilePath                ((</>), isValid, equalFilePath, pathSeparators)
 import           TestSuite.Util
 
 
@@ -22,6 +24,7 @@ tests :: TestTree
 tests = testGroup "Hakyll.Core.Identifier.Tests" $ concat
     [ captureTests
     , matchesTests
+    , [ testProperty "toFilePath . fromFilePath" filepathConversionProp ]
     ]
 
 
@@ -59,3 +62,16 @@ matchesTests = fromAssertions "matches"
     , True  @=? matches ("foo" .||. "bar") "bar"
     , False @=? matches ("bar" .&&. hasNoVersion) (setVersion (Just "xz") "bar")
     ]
+
+
+--------------------------------------------------------------------------------
+-- Ensure that `fromFilePath` and `toFilePath` are inverses of each other (#791)
+filepathConversionProp :: Q.Property
+filepathConversionProp 
+    = Q.forAll genFilePath 
+    $ \fp -> toFilePath (fromFilePath fp) `equalFilePath` fp
+    where
+        genFilePath 
+            = Q.listOf1 (Q.elements $ ['a'..'z'] <> pathSeparators) 
+                `Q.suchThat` 
+                isValid
\ No newline at end of file
diff --git a/tests/Hakyll/Web/CompressCss/Tests.hs b/tests/Hakyll/Web/CompressCss/Tests.hs
index ae4aba023..fcc5cde2a 100644
--- a/tests/Hakyll/Web/CompressCss/Tests.hs
+++ b/tests/Hakyll/Web/CompressCss/Tests.hs
@@ -43,6 +43,8 @@ tests = testGroup "Hakyll.Web.CompressCss.Tests" $ concat
         , "a!b"           @=? compressCss "a ! b"
           -- compress calc()
         , "calc(1px + 100%/(5 + 3) - (3px + 2px)*5)" @=? compressCss "calc( 1px + 100% / ( 5 +  3) - calc( 3px + 2px ) * 5 )"
+          -- compress clamp() (issue #1021)
+        , "clamp(2.25rem, 2vw + 1.5rem, 3.25rem)" @=? compressCss "clamp(2.25rem,  2vw  +     1.5rem, 3.25rem)"
           -- compress whitespace even after this curly brace
         , "}"             @=? compressCss ";   }  "
           -- but do not compress separators inside string tokens
diff --git a/web/examples.markdown b/web/examples.markdown
index 8439b760a..3eefa0361 100644
--- a/web/examples.markdown
+++ b/web/examples.markdown
@@ -144,3 +144,5 @@ directly with the default Hakyll site.
   [source](https://github.com/michaelxavier/michaelxavier.net)
 - <https://tony-zorman.com/>,
   [source](https://github.com/slotThe/slotThe.github.io)
+- <https://sahel13.github.io/>,
+  [source](https://github.com/Sahel13/Sahel13.github.io)