From b8517a76fcbe0858bbcf9ff4441e31976b9fa91a Mon Sep 17 00:00:00 2001
From: Kuba Sekowski <jakub.sekowski@handsontable.com>
Date: Mon, 29 May 2023 13:00:52 +0200
Subject: [PATCH 1/4] [Hotfix] Revert angular demo to previous version (#1282)

Revert angular demo to previous version
---
 docs/guide/integration-with-angular.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/guide/integration-with-angular.md b/docs/guide/integration-with-angular.md
index d97a53900..f4f6cfa84 100644
--- a/docs/guide/integration-with-angular.md
+++ b/docs/guide/integration-with-angular.md
@@ -8,7 +8,7 @@ more details.
 ## Demo
 
 <iframe
-     src="https://codesandbox.io/embed/github/handsontable/hyperformula-demos/tree/2.5.x/angular-demo?autoresize=1
+     src="https://codesandbox.io/embed/github/handsontable/hyperformula-demos/tree/2.4.x/angular-demo?autoresize=1
      &fontsize=11&hidenavigation=1&theme=light&view=preview"
      style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;"
      title="handsontable/hyperformula-demos: angular-demo"

From 505459c60c8733279f11c1e9ee9833c0a522a57e Mon Sep 17 00:00:00 2001
From: Brian Hung <brianlhung@gmail.com>
Date: Wed, 2 Aug 2023 13:14:24 -0700
Subject: [PATCH 2/4] export EmptyValue symbol

---
 src/index.ts             | 4 +++-
 src/interpreter/index.ts | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/index.ts b/src/index.ts
index 08ef6c9ea..a3515382b 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -48,7 +48,7 @@ import {ExportedCellChange, ExportedChange, ExportedNamedExpressionChange} from
 import {HyperFormula} from './HyperFormula'
 import {RawTranslationPackage} from './i18n'
 import enGB from './i18n/languages/enGB'
-import {FunctionArgument, FunctionPlugin, FunctionPluginDefinition, FunctionArgumentType, ImplementedFunctions, FunctionMetadata} from './interpreter'
+import {FunctionArgument, FunctionPlugin, FunctionPluginDefinition, FunctionArgumentType, ImplementedFunctions, FunctionMetadata, EmptyValue} from './interpreter'
 import {FormatInfo} from './interpreter/InterpreterValue'
 import * as plugins from './interpreter/plugin'
 import {SimpleRangeValue} from './SimpleRangeValue'
@@ -76,6 +76,7 @@ class HyperFormulaNS extends HyperFormula {
   public static ExpectedValueOfTypeError = ExpectedValueOfTypeError
   public static ArraySize = ArraySize
   public static SimpleRangeValue = SimpleRangeValue
+  public static EmptyValue = EmptyValue
   public static FunctionPlugin = FunctionPlugin
   public static FunctionArgumentType = FunctionArgumentType
   public static FunctionPluginValidationError = FunctionPluginValidationError
@@ -175,6 +176,7 @@ export {
   NothingToPasteError,
   ProtectedFunctionTranslationError,
   SimpleRangeValue,
+  EmptyValue,
   SheetNameAlreadyTakenError,
   SheetSizeLimitExceededError,
   SourceLocationHasArrayError,
diff --git a/src/interpreter/index.ts b/src/interpreter/index.ts
index 2aecc4598..031b83a50 100644
--- a/src/interpreter/index.ts
+++ b/src/interpreter/index.ts
@@ -12,6 +12,7 @@ import {
   ImplementedFunctions,
   FunctionArgumentType,
 } from './plugin/FunctionPlugin'
+import {EmptyValue} from './InterpreterValue'
 
 export {
   FunctionPluginDefinition,
@@ -21,4 +22,5 @@ export {
   FunctionMetadata,
   FunctionTranslationsPackage,
   FunctionArgumentType,
+  EmptyValue,
 }

From dd6242e4f3265e4a55e10c39ab3052caafee53fa Mon Sep 17 00:00:00 2001
From: Brian Hung <brianlhung@gmail.com>
Date: Thu, 3 Aug 2023 15:08:58 -0700
Subject: [PATCH 3/4] changelog

---
 CHANGELOG.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07f227258..1ffc2c7d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,11 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Added
+
+- Exported the `EmptyValue` symbol as a public API. This allows custom functions to filter for empty values.
+  [#1232](https://github.com/handsontable/hyperformula/issues/1265)
+
 ### Fixed
 
 - Fixed a bug where neighboring exported changes of an array formula were missing.

From 84750a7ad1967e0c69cdac12c9eca1d749caa874 Mon Sep 17 00:00:00 2001
From: Kuba Sekowski <jakub.sekowski@handsontable.com>
Date: Tue, 8 Aug 2023 09:45:39 +0200
Subject: [PATCH 4/4] Rephrase changelog entry

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ffc2c7d4..4f35bec9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,7 +10,7 @@ and this project adheres to
 
 ### Added
 
-- Exported the `EmptyValue` symbol as a public API. This allows custom functions to filter for empty values.
+- Exported the `EmptyValue` symbol as a public API. This allows custom functions to handle empty cell values.
   [#1232](https://github.com/handsontable/hyperformula/issues/1265)
 
 ### Fixed