diff --git a/lib/packages/docutils/dochelpers.nim b/lib/packages/docutils/dochelpers.nim
index 0a41d85b53d6..cb9bda4ba883 100644
--- a/lib/packages/docutils/dochelpers.nim
+++ b/lib/packages/docutils/dochelpers.nim
@@ -18,6 +18,7 @@ import std/strutils
 
 when defined(nimPreviewSlimSystem):
   import std/[assertions, syncio]
+  from std/objectequals import nil
 
 
 type
@@ -42,6 +43,10 @@ proc `$`*(s: LangSymbol): string =  # for debug
       s.symKind, s.symTypeKind , s.name, s.generics, $s.isGroup,
       $s.parametersProvided, $s.parameters, s.outType]
 
+when defined(nimPreviewSlimSystem):
+  proc `==`*(a, b: LangSymbol): bool {.inline.} =
+    result = objectequals.`==`(a, b)
+
 func nimIdentBackticksNormalize*(s: string): string =
   ## Normalizes the string `s` as a Nim identifier.
   ##
diff --git a/lib/pure/collections/heapqueue.nim b/lib/pure/collections/heapqueue.nim
index 96f9b4430006..05521aaab5a3 100644
--- a/lib/pure/collections/heapqueue.nim
+++ b/lib/pure/collections/heapqueue.nim
@@ -264,3 +264,7 @@ proc `$`*[T](heap: HeapQueue[T]): string =
     if result.len > 1: result.add(", ")
     result.addQuoted(x)
   result.add("]")
+
+proc `==`*[T](a, b: HeapQueue[T]): bool {.inline.} =
+  ## Equality operator for heaps.
+  result = a.data == b.data
diff --git a/lib/system.nim b/lib/system.nim
index c806a08b3698..9c388c35edb2 100644
--- a/lib/system.nim
+++ b/lib/system.nim
@@ -1778,6 +1778,11 @@ proc pop*[T](s: var seq[T]): T {.inline, noSideEffect.} =
     result = s[L]
     setLen(s, L)
 
+proc `==`*[T, U](x, y: HSlice[T, U]): bool {.inline.} =
+  ## Equality operator for slices.
+  mixin `==`
+  result = x.a == y.a and x.b == y.b
+
 when defined(nimPreviewSlimSystem):
   # no `object`, moved to std/objectequals
   proc `==`*[T: tuple](x, y: T): bool =
diff --git a/tests/stdlib/concurrency/tatomics.nim b/tests/stdlib/concurrency/tatomics.nim
index 08f2e7d3eed7..76c261135cb2 100644
--- a/tests/stdlib/concurrency/tatomics.nim
+++ b/tests/stdlib/concurrency/tatomics.nim
@@ -7,7 +7,7 @@ discard """
 # test atomic operations
 
 import std/[atomics, bitops]
-import std/assertions
+import std/[assertions, objectequals]
 
 
 type
diff --git a/tests/stdlib/talgorithm.nim b/tests/stdlib/talgorithm.nim
index e2024df0c357..aaa4e6744d0b 100644
--- a/tests/stdlib/talgorithm.nim
+++ b/tests/stdlib/talgorithm.nim
@@ -7,7 +7,7 @@ discard """
 #12928,10456
 
 import std/[sequtils, algorithm, json, sugar]
-import std/assertions
+import std/[assertions, objectequals]
 
 proc test() = 
   try: 
diff --git a/tests/stdlib/tgenast.nim b/tests/stdlib/tgenast.nim
index d99c9312e9a1..9259462cb39a 100644
--- a/tests/stdlib/tgenast.nim
+++ b/tests/stdlib/tgenast.nim
@@ -7,7 +7,7 @@ discard """
 import std/genasts
 import std/macros
 from std/strformat import `&`
-import std/assertions
+import std/[assertions, objectequals]
 import ./mgenast
 
 proc main =
diff --git a/tests/stdlib/timportutils.nim b/tests/stdlib/timportutils.nim
index 67209228297e..c15596ee2bc6 100644
--- a/tests/stdlib/timportutils.nim
+++ b/tests/stdlib/timportutils.nim
@@ -2,7 +2,7 @@ discard """
   matrix: "--mm:refc; --mm:orc"
 """
 
-import std/[importutils, assertions]
+import std/[importutils, assertions, objectequals]
 import stdtest/testutils
 import mimportutils
 
diff --git a/tests/stdlib/tjson.nim b/tests/stdlib/tjson.nim
index e425501f699e..53d7a9b6af8b 100644
--- a/tests/stdlib/tjson.nim
+++ b/tests/stdlib/tjson.nim
@@ -14,7 +14,7 @@ when not defined(js):
   import std/streams
 import stdtest/testutils
 from std/fenv import epsilon
-import std/[assertions, objectdollar]
+import std/[assertions, objectdollar, objectequals]
 
 proc testRoundtrip[T](t: T, expected: string) =
   # checks that `T => json => T2 => json2` is such that json2 = json
diff --git a/tests/stdlib/tjsonmacro.nim b/tests/stdlib/tjsonmacro.nim
index 5a1b4b2944be..ca9f4ed3e490 100644
--- a/tests/stdlib/tjsonmacro.nim
+++ b/tests/stdlib/tjsonmacro.nim
@@ -5,7 +5,7 @@ discard """
 """
 
 import json, strutils, options, tables
-import std/assertions
+import std/[assertions, objectequals]
 
 # The definition of the `%` proc needs to be here, since the `% c` calls below
 # can only find our custom `%` proc for `Pix` if defined in global scope.
diff --git a/tests/stdlib/tjsonutils.nim b/tests/stdlib/tjsonutils.nim
index 9acf4c9e545e..c9418cdfa1e9 100644
--- a/tests/stdlib/tjsonutils.nim
+++ b/tests/stdlib/tjsonutils.nim
@@ -8,7 +8,7 @@ import std/json
 from std/math import isNaN, signbit
 from std/fenv import epsilon
 from stdtest/testutils import whenRuntimeJs
-import std/[assertions, objectdollar]
+import std/[assertions, objectdollar, objectequals]
 
 proc testRoundtrip[T](t: T, expected: string) =
   # checks that `T => json => T2 => json2` is such that json2 = json
diff --git a/tests/stdlib/tmarshal.nim b/tests/stdlib/tmarshal.nim
index 32991ccc911c..a495b0878b61 100644
--- a/tests/stdlib/tmarshal.nim
+++ b/tests/stdlib/tmarshal.nim
@@ -3,7 +3,7 @@ discard """
 """
 
 import std/marshal
-import std/[assertions, objectdollar, streams]
+import std/[assertions, objectdollar, objectequals, streams]
 
 # TODO: add static tests
 
diff --git a/tests/stdlib/tposix.nim b/tests/stdlib/tposix.nim
index 060482229a4b..2e41d5da907d 100644
--- a/tests/stdlib/tposix.nim
+++ b/tests/stdlib/tposix.nim
@@ -8,7 +8,7 @@ discard """
 when not defined(windows):
 
   import posix
-  import std/[assertions, syncio]
+  import std/[assertions, syncio, objectequals]
 
   var
     u: Utsname
diff --git a/tests/stdlib/trandom.nim b/tests/stdlib/trandom.nim
index eb32f7757569..8d7817dd2a4c 100644
--- a/tests/stdlib/trandom.nim
+++ b/tests/stdlib/trandom.nim
@@ -2,7 +2,7 @@ discard """
   joinable: false # to avoid messing with global rand state
   matrix: "--mm:refc; --mm:orc; --backend:js --jsbigint64:off -d:nimStringHash2; --backend:js --jsbigint64:on"
 """
-import std/[assertions, formatfloat]
+import std/[assertions, formatfloat, objectequals]
 import std/[random, math, stats, sets, tables]
 import std/private/jsutils
 when not defined(js):
diff --git a/tests/stdlib/tsequtils.nim b/tests/stdlib/tsequtils.nim
index 1094ae2335eb..5bde008855fd 100644
--- a/tests/stdlib/tsequtils.nim
+++ b/tests/stdlib/tsequtils.nim
@@ -8,7 +8,7 @@ discard """
 import std/sequtils
 import strutils
 from algorithm import sorted
-import std/assertions
+import std/[assertions, objectequals]
 
 {.experimental: "strictEffects".}
 {.push warningAsError[Effect]: on.}
diff --git a/tests/stdlib/tsortcall.nim b/tests/stdlib/tsortcall.nim
index 32e004921477..8a29cabf5eb1 100644
--- a/tests/stdlib/tsortcall.nim
+++ b/tests/stdlib/tsortcall.nim
@@ -4,6 +4,7 @@ discard """
 
 import algorithm
 import unittest
+import std/objectequals
 
 
 suite "test sort, sorted, and isSorted procs":
diff --git a/tests/stdlib/tsugar.nim b/tests/stdlib/tsugar.nim
index 2ea96cfbbf6e..cb50dc0e36fe 100644
--- a/tests/stdlib/tsugar.nim
+++ b/tests/stdlib/tsugar.nim
@@ -6,7 +6,7 @@ x + y = 30
 '''
 """
 import std/[sugar, algorithm, random, sets, tables, strutils, sequtils]
-import std/[syncio, assertions]
+import std/[syncio, assertions, objectequals]
 
 type # for capture test, ref #20679
   FooCapture = ref object
diff --git a/tests/stdlib/ttables.nim b/tests/stdlib/ttables.nim
index c529aff9fb85..70e0e961893f 100644
--- a/tests/stdlib/ttables.nim
+++ b/tests/stdlib/ttables.nim
@@ -3,7 +3,7 @@ discard """
 """
 
 import tables, hashes
-import std/assertions
+import std/[assertions, objectequals]
 
 type
   Person = object
diff --git a/tests/stdlib/ttimes.nim b/tests/stdlib/ttimes.nim
index 0f04168dc6cd..3ca9dad971c4 100644
--- a/tests/stdlib/ttimes.nim
+++ b/tests/stdlib/ttimes.nim
@@ -3,7 +3,7 @@ discard """
 """
 
 import times, strutils, unittest
-import std/assertions
+import std/[assertions, objectequals]
 
 when not defined(js):
   import os
diff --git a/tests/stdlib/tunittest.nim b/tests/stdlib/tunittest.nim
index 0442c7863b25..0216acbd6bd8 100644
--- a/tests/stdlib/tunittest.nim
+++ b/tests/stdlib/tunittest.nim
@@ -23,7 +23,7 @@ matrix: "--mm:refc; --mm:orc"
 targets: "c js"
 """
 
-import std/[unittest, sequtils, assertions]
+import std/[unittest, sequtils, assertions, objectequals]
 from std/unittest {.all.} import matchFilter
 
 proc doThings(spuds: var int): int =
diff --git a/tests/stdlib/turi.nim b/tests/stdlib/turi.nim
index 9c717c5b159a..27435be60e12 100644
--- a/tests/stdlib/turi.nim
+++ b/tests/stdlib/turi.nim
@@ -6,7 +6,7 @@ discard """
 import std/uri
 from std/uri {.all.} as uri2 import removeDotSegments
 from std/sequtils import toSeq
-import std/assertions
+import std/[assertions, objectequals]
 
 template main() =
   block: # encodeUrl, decodeUrl
diff --git a/tests/stdlib/twrapnils.nim b/tests/stdlib/twrapnils.nim
index 3da230b5e4f1..717355cd6f5c 100644
--- a/tests/stdlib/twrapnils.nim
+++ b/tests/stdlib/twrapnils.nim
@@ -4,7 +4,7 @@ discard """
 
 import std/wrapnils
 from std/options import get, isSome
-import std/assertions
+import std/[assertions, objectequals]
 
 proc checkNotZero(x: float): float =
   doAssert x != 0