diff --git a/compiler/daml-lf-ast/src/DA/Daml/LF/Ast/Version.hs b/compiler/daml-lf-ast/src/DA/Daml/LF/Ast/Version.hs
index bd68cac2d2..24d1251056 100644
--- a/compiler/daml-lf-ast/src/DA/Daml/LF/Ast/Version.hs
+++ b/compiler/daml-lf-ast/src/DA/Daml/LF/Ast/Version.hs
@@ -133,8 +133,7 @@ featureUnstable = Feature
 featureBigNumeric :: Feature
 featureBigNumeric = Feature
     { featureName = "BigNumeric type"
-    , featureVersionReq = VersionReq \case
-          V2 -> allMinorVersions
+    , featureVersionReq = devOnly
     , featureCppFlag = Just "DAML_BIGNUMERIC"
     }
 
diff --git a/compiler/damlc/daml-stdlib-src/DA/Internal/Prelude.daml b/compiler/damlc/daml-stdlib-src/DA/Internal/Prelude.daml
index 2d6ae75080..1dab49655b 100644
--- a/compiler/damlc/daml-stdlib-src/DA/Internal/Prelude.daml
+++ b/compiler/damlc/daml-stdlib-src/DA/Internal/Prelude.daml
@@ -595,17 +595,15 @@ roundCommercial d x =
       then x - diff
       else t
 
-zero: NumericScale n => Numeric n
-zero = intToNumeric 0
-
-half: NumericScale n => Numeric n
-half = fromNumeric (0.5: Numeric 1)
-
--- | Round a `Decimal` to the nearest integer, where a `.5` is rounded away from zero.
-round : NumericScale n => Numeric n -> Int
-round x = if x > zero
+-- | Round a `Numeric` to the nearest integer, where a `.5` is rounded away from zero.
+round : forall n. NumericScale n => Numeric n -> Int
+round x = if x > intToNumeric 0
     then truncate $ x + half
     else truncate $ x - half
+  where
+    -- Note that for `n = 0`, `half = 0.`, so the result of round is still correct.
+    half = primitive @"BEDivNumeric" (numericOne @n) (intToNumeric @0 1) (intToNumeric @0 2)
+
 
 -- | Round a `Decimal` down to the nearest integer.
 floor : NumericScale n => Numeric n -> Int
diff --git a/compiler/damlc/tests/daml-test-files/BigNumeric.daml b/compiler/damlc/tests/daml-test-files/BigNumeric.daml
index 35e3b98023..79b4235e22 100644
--- a/compiler/damlc/tests/daml-test-files/BigNumeric.daml
+++ b/compiler/damlc/tests/daml-test-files/BigNumeric.daml
@@ -1,7 +1,7 @@
 -- Copyright (c) 2021, Digital Asset (Switzerland) GmbH and/or its affiliates.
 -- All rights reserved.
 
--- @SINCE-LF 2.1
+-- @SINCE-LF 2.dev
 
 module BigNumeric where
 
diff --git a/compiler/damlc/tests/daml-test-files/BigNumericTooBig.daml b/compiler/damlc/tests/daml-test-files/BigNumericTooBig.daml
index 719bdd1cd6..016c4f6e3e 100644
--- a/compiler/damlc/tests/daml-test-files/BigNumericTooBig.daml
+++ b/compiler/damlc/tests/daml-test-files/BigNumericTooBig.daml
@@ -1,7 +1,7 @@
 -- Copyright (c) 2021, Digital Asset (Switzerland) GmbH and/or its affiliates.
 -- All rights reserved.
 
--- @SINCE-LF 2.1
+-- @SINCE-LF 2.dev
 -- @ERROR Large BigNumeric (larger than Numeric) literals are not currently supported.
 
 module BigNumericTooBig where
diff --git a/compiler/damlc/tests/daml-test-files/LfStableBigNumeric.EXPECTED.ledger b/compiler/damlc/tests/daml-test-files/LfDevBigNumeric.EXPECTED.ledger
similarity index 73%
rename from compiler/damlc/tests/daml-test-files/LfStableBigNumeric.EXPECTED.ledger
rename to compiler/damlc/tests/daml-test-files/LfDevBigNumeric.EXPECTED.ledger
index ec9b620b3b..6304b3ecbd 100644
--- a/compiler/damlc/tests/daml-test-files/LfStableBigNumeric.EXPECTED.ledger
+++ b/compiler/damlc/tests/daml-test-files/LfDevBigNumeric.EXPECTED.ledger
@@ -1,8 +1,8 @@
 Transactions: 
-  TX 0 1970-01-01T00:00:00Z (LfStableBigNumeric:22:3)
+  TX 0 1970-01-01T00:00:00Z (LfDevBigNumeric:23:3)
   #0:0
   │   disclosed to (since): 'Alice' (0)
-  └─> 'Alice' creates LfStableBigNumeric:BigNumericResults
+  └─> 'Alice' creates LfDevBigNumeric:BigNumericResults
               with
                 party = 'Alice';
                 values =
diff --git a/compiler/damlc/tests/daml-test-files/LfStableBigNumeric.daml b/compiler/damlc/tests/daml-test-files/LfDevBigNumeric.daml
similarity index 89%
rename from compiler/damlc/tests/daml-test-files/LfStableBigNumeric.daml
rename to compiler/damlc/tests/daml-test-files/LfDevBigNumeric.daml
index edd7b0ccef..ac15d4c71e 100644
--- a/compiler/damlc/tests/daml-test-files/LfStableBigNumeric.daml
+++ b/compiler/damlc/tests/daml-test-files/LfDevBigNumeric.daml
@@ -1,7 +1,8 @@
 -- Copyright (c) 2023 Digital Asset (Switzerland) GmbH and/or its affiliates. All rights reserved.
 -- SPDX-License-Identifier: Apache-2.0
 
-module LfStableBigNumeric where
+-- @SINCE-LF 2.dev
+module LfDevBigNumeric where
 
 import Daml.Script
 import qualified DA.BigNumeric as BigNumeric
@@ -16,7 +17,7 @@ template BigNumericResults
 x : BigNumeric
 x = 0.5
 
--- @LEDGER run LfStableBigNumeric.EXPECTED.ledger
+-- @LEDGER run LfDevBigNumeric.EXPECTED.ledger
 run = script do
   alice <- allocateParty "Alice"
   submit alice do
diff --git a/compiler/damlc/tests/daml-test-files/PreludeTest.daml b/compiler/damlc/tests/daml-test-files/PreludeTest.daml
index c7c1989e2e..40a9e0cce7 100644
--- a/compiler/damlc/tests/daml-test-files/PreludeTest.daml
+++ b/compiler/damlc/tests/daml-test-files/PreludeTest.daml
@@ -31,10 +31,10 @@
 -- @INFO range=297:38-297:51; Use zip3
 -- @INFO range=298:53-298:66; Use zip3
 -- @INFO range=311:13-311:20; Evaluate
--- @ERROR range=378:1-378:17; Day 29 falls outside of valid day range (1 .. 28) for Feb 2100.
--- @ERROR range=382:1-382:18; Day 0 falls outside of valid day range (1 .. 31) for Jan 2000.
--- @ERROR range=397:1-397:21; ArithmeticError while evaluating (UNIX_DAYS_TO_DATE -719163).
--- @ERROR range=400:1-400:21; ArithmeticError while evaluating (UNIX_DAYS_TO_DATE 2932897).
+-- @ERROR range=389:1-389:17; Day 29 falls outside of valid day range (1 .. 28) for Feb 2100.
+-- @ERROR range=393:1-393:18; Day 0 falls outside of valid day range (1 .. 31) for Jan 2000.
+-- @ERROR range=408:1-408:21; ArithmeticError while evaluating (UNIX_DAYS_TO_DATE -719163).
+-- @ERROR range=411:1-411:21; ArithmeticError while evaluating (UNIX_DAYS_TO_DATE 2932897).
 
 module PreludeTest where
 
@@ -341,12 +341,23 @@ testFloor = script do
     floor (0.0 : Decimal) === 0
 
 testRound = script do
+    round (0.5: Numeric 1) === 1
+    round (1.5: Numeric 1) === 2
+    round (-0.5: Numeric 1) === -1
+    round (-1.5: Numeric 1) === -2
+--  -- Check that `round @0` does not crash
+    round (0.0: Numeric 0) === 0
+    round (1.0: Numeric 0) === 1
+    
+testRoundCommercial = script do
     roundCommercial 0 10.5 === (11.0 : Decimal)
     roundCommercial 2 22.105 === (22.110 : Decimal)
-    roundBankers 0 10.5 === (10.0 : Decimal)
-    roundBankers 2 22.105 === (22.100 : Decimal)
     roundCommercial 0 (-10.5) === (-11.0 : Decimal)
     roundCommercial 2 (-22.105) === (-22.110 : Decimal)
+    
+testRoundBankers = script do
+    roundBankers 0 10.5 === (10.0 : Decimal)
+    roundBankers 2 22.105 === (22.100 : Decimal)    
     roundBankers 0 (-10.5) === (-10.0 : Decimal)
     roundBankers 2 (-22.105) === (-22.100 : Decimal)
 
diff --git a/compiler/damlc/tests/daml-test-files/RoundingModeMatch.daml b/compiler/damlc/tests/daml-test-files/RoundingModeMatch.daml
index 8bca28c772..fcd9e31573 100644
--- a/compiler/damlc/tests/daml-test-files/RoundingModeMatch.daml
+++ b/compiler/damlc/tests/daml-test-files/RoundingModeMatch.daml
@@ -1,7 +1,7 @@
 -- Copyright (c) 2021, Digital Asset (Switzerland) GmbH and/or its affiliates.
 -- All rights reserved.
 
--- @SINCE-LF 2.1
+-- @SINCE-LF 2.dev
 
 -- | Test that pattern matching for RoundingMode works.
 module RoundingModeMatch where
diff --git a/compiler/damlc/tests/daml-test-files/RoundingModeOrder.daml b/compiler/damlc/tests/daml-test-files/RoundingModeOrder.daml
index 8c504e9081..fcf22838ec 100644
--- a/compiler/damlc/tests/daml-test-files/RoundingModeOrder.daml
+++ b/compiler/damlc/tests/daml-test-files/RoundingModeOrder.daml
@@ -1,7 +1,7 @@
 -- Copyright (c) 2021, Digital Asset (Switzerland) GmbH and/or its affiliates.
 -- All rights reserved.
 
--- @SINCE-LF 2.1
+-- @SINCE-LF 2.dev
 
 -- | Test that rounding mode order matches the order in GHC.Types
 module RoundingModeOrder where
diff --git a/compiler/damlc/tests/platform-independence.dar-hash b/compiler/damlc/tests/platform-independence.dar-hash
index 480f74d7f3..58bf5832b8 100644
--- a/compiler/damlc/tests/platform-independence.dar-hash
+++ b/compiler/damlc/tests/platform-independence.dar-hash
@@ -1,34 +1,34 @@
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diff --git a/compiler/lsp-tests/src/Main.hs b/compiler/lsp-tests/src/Main.hs
index d6ddbff564..fdbad92fe5 100644
--- a/compiler/lsp-tests/src/Main.hs
+++ b/compiler/lsp-tests/src/Main.hs
@@ -427,9 +427,8 @@ requestTests run runScripts = testGroup "requests"
               { _contents = HoverContents $ MarkupContent MkMarkdown $ T.unlines
                     [ "```daml"
                     , "1.0"
-                    , ": (Additive a, IsNumeric a)"
-                    , "=> a"
-                    , "```"
+                    , ": NumericScale n"
+                    , "=> Numeric n"                    , "```"
                     , "* * *"
                     ]
               , _range = Just $ Range (Position 1 27) (Position 1 30)
diff --git a/daml-lf/archive/src/main/scala/com/digitalasset/daml/lf/archive/DecodeV2.scala b/daml-lf/archive/src/main/scala/com/digitalasset/daml/lf/archive/DecodeV2.scala
index 0a1ae12d3d..6104cc78ba 100644
--- a/daml-lf/archive/src/main/scala/com/digitalasset/daml/lf/archive/DecodeV2.scala
+++ b/daml-lf/archive/src/main/scala/com/digitalasset/daml/lf/archive/DecodeV2.scala
@@ -1974,7 +1974,7 @@ private[lf] object DecodeV2 {
       BuiltinFunctionInfo(MUL_BIGNUMERIC, BMulBigNumeric, minVersion = bigNumeric),
       BuiltinFunctionInfo(DIV_BIGNUMERIC, BDivBigNumeric, minVersion = bigNumeric),
       BuiltinFunctionInfo(SHIFT_RIGHT_BIGNUMERIC, BShiftRightBigNumeric, minVersion = bigNumeric),
-      BuiltinFunctionInfo(BIGNUMERIC_TO_NUMERIC, BBigNumericToNumeric),
+      BuiltinFunctionInfo(BIGNUMERIC_TO_NUMERIC, BBigNumericToNumeric, minVersion = bigNumeric),
       BuiltinFunctionInfo(NUMERIC_TO_BIGNUMERIC, BNumericToBigNumeric, minVersion = bigNumeric),
       BuiltinFunctionInfo(BIGNUMERIC_TO_TEXT, BBigNumericToText, minVersion = bigNumeric),
       BuiltinFunctionInfo(ANY_EXCEPTION_MESSAGE, BAnyExceptionMessage, minVersion = exceptions),
diff --git a/daml-lf/encoder/src/test/lf/BigNumeric_all_.lf b/daml-lf/encoder/src/test/lf/BigNumeric_2.dev_.lf
similarity index 100%
rename from daml-lf/encoder/src/test/lf/BigNumeric_all_.lf
rename to daml-lf/encoder/src/test/lf/BigNumeric_2.dev_.lf
diff --git a/daml-lf/encoder/src/test/lf/Builtin_2.1_.lf b/daml-lf/encoder/src/test/lf/Builtin_2.1_.lf
index 486cd49c0b..3b930f3217 100644
--- a/daml-lf/encoder/src/test/lf/Builtin_2.1_.lf
+++ b/daml-lf/encoder/src/test/lf/Builtin_2.1_.lf
@@ -121,26 +121,6 @@ module BuiltinMod {
     TRACE;
   val coerceContractId: forall (a: *) (b: *). ContractId a -> ContractId b =
     COERCE_CONTRACT_ID;
-  val scaleBignumeric: BigNumeric -> Int64 =
-    SCALE_BIGNUMERIC;
-  val precisionBignumeric: BigNumeric -> Int64 =
-    PRECISION_BIGNUMERIC;
-  val addBignumeric: BigNumeric -> BigNumeric -> BigNumeric =
-    ADD_BIGNUMERIC;
-  val subBignumeric: BigNumeric -> BigNumeric -> BigNumeric =
-    SUB_BIGNUMERIC;
-  val mulBignumeric: BigNumeric -> BigNumeric -> BigNumeric =
-    MUL_BIGNUMERIC;
-  val divBignumeric: Int64 -> RoundingMode -> BigNumeric -> BigNumeric -> BigNumeric =
-    DIV_BIGNUMERIC;
-  val shiftRightBignumeric: Int64 -> BigNumeric -> BigNumeric =
-    SHIFT_RIGHT_BIGNUMERIC;
-  val bignumericToNumeric: forall (a: nat). Numeric a -> BigNumeric -> Numeric a =
-    BIGNUMERIC_TO_NUMERIC;
-  val numericToBignumeric: forall (a: nat). Numeric a -> BigNumeric =
-    NUMERIC_TO_BIGNUMERIC;
-  val bignumericToText: BigNumeric -> Text =
-    BIGNUMERIC_TO_TEXT;
   val anyExceptionMessage: AnyException -> Text =
     ANY_EXCEPTION_MESSAGE;
 }
diff --git a/daml-lf/encoder/src/test/lf/Builtin_2.dev_.lf b/daml-lf/encoder/src/test/lf/Builtin_2.dev_.lf
index e68f3f2c57..948d1068f9 100644
--- a/daml-lf/encoder/src/test/lf/Builtin_2.dev_.lf
+++ b/daml-lf/encoder/src/test/lf/Builtin_2.dev_.lf
@@ -121,23 +121,23 @@ module BuiltinMod {
     TRACE;
   val coerceContractId: forall (a: *) (b: *). ContractId a -> ContractId b =
     COERCE_CONTRACT_ID;
-  val scaleBignumeric: BigNumeric -> Int64 =
+  val scaleBigNumeric: BigNumeric -> Int64 =
     SCALE_BIGNUMERIC;
-  val precisionBignumeric: BigNumeric -> Int64 =
+  val precisionBigNumeric: BigNumeric -> Int64 =
     PRECISION_BIGNUMERIC;
-  val addBignumeric: BigNumeric -> BigNumeric -> BigNumeric =
+  val addBigNumeric: BigNumeric -> BigNumeric -> BigNumeric =
     ADD_BIGNUMERIC;
-  val subBignumeric: BigNumeric -> BigNumeric -> BigNumeric =
+  val subBigNumeric: BigNumeric -> BigNumeric -> BigNumeric =
     SUB_BIGNUMERIC;
-  val mulBignumeric: BigNumeric -> BigNumeric -> BigNumeric =
+  val mulBigNumeric: BigNumeric -> BigNumeric -> BigNumeric =
     MUL_BIGNUMERIC;
-  val divBignumeric: Int64 -> RoundingMode -> BigNumeric -> BigNumeric -> BigNumeric =
+  val divBigNumeric: Int64 -> RoundingMode -> BigNumeric -> BigNumeric -> BigNumeric =
     DIV_BIGNUMERIC;
-  val shiftRightBignumeric: Int64 -> BigNumeric -> BigNumeric =
+  val shiftRightBigNumeric: Int64 -> BigNumeric -> BigNumeric =
     SHIFT_RIGHT_BIGNUMERIC;
   val bignumericToNumeric: forall (a: nat). Numeric a -> BigNumeric -> Numeric a =
     BIGNUMERIC_TO_NUMERIC;
-  val numericToBignumeric: forall (a: nat). Numeric a -> BigNumeric =
+  val numericToBigNumeric: forall (a: nat). Numeric a -> BigNumeric =
     NUMERIC_TO_BIGNUMERIC;
   val bignumericToText: BigNumeric -> Text =
     BIGNUMERIC_TO_TEXT;
diff --git a/daml-lf/encoder/src/test/scala/com/digitalasset/daml/lf/archive/testing/DamlLfEncoderTest.scala b/daml-lf/encoder/src/test/scala/com/digitalasset/daml/lf/archive/testing/DamlLfEncoderTest.scala
index 380c2116e6..77b2dd76d1 100644
--- a/daml-lf/encoder/src/test/scala/com/digitalasset/daml/lf/archive/testing/DamlLfEncoderTest.scala
+++ b/daml-lf/encoder/src/test/scala/com/digitalasset/daml/lf/archive/testing/DamlLfEncoderTest.scala
@@ -56,13 +56,13 @@ class DamlLfEncoderTest
         "AnyMod",
         "SynonymMod",
         "GenMapMod",
-        "BigNumericMod",
         "ExceptionMod",
         "InterfaceMod",
         "InterfaceMod0",
       )
       val modules_2_dev = modules_2_1 ++ Set[DottedName](
-        "InterfaceExtMod"
+        "BigNumericMod",
+        "InterfaceExtMod",
       )
 
       val versions = Table(
diff --git a/daml-lf/language/src/main/scala/com/digitalasset/daml/lf/language/LanguageVersion.scala b/daml-lf/language/src/main/scala/com/digitalasset/daml/lf/language/LanguageVersion.scala
index 6d0b7ac2a2..5656468327 100644
--- a/daml-lf/language/src/main/scala/com/digitalasset/daml/lf/language/LanguageVersion.scala
+++ b/daml-lf/language/src/main/scala/com/digitalasset/daml/lf/language/LanguageVersion.scala
@@ -39,7 +39,6 @@ object LanguageVersion {
 
   object Features {
     val default = v2_1
-    val bigNumeric = v2_1
     val exceptions = v2_1
     val packageUpgrades = v2_1
     val choiceFuncs = v2_dev
@@ -52,6 +51,9 @@ object LanguageVersion {
     /** Guards in interfaces */
     val extendedInterfaces = v2_dev
 
+    /** BigNumeric */
+    val bigNumeric = v2_dev
+
     /** Unstable, experimental features. This should stay in x.dev forever.
       * Features implemented with this flag should be moved to a separate
       * feature flag once the decision to add them permanently has been made.