diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7837363ab950..60e6e3b4ed00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,115 @@
 # Changelog
 
+## [v4.3.0](https://github.com/codeigniter4/CodeIgniter4/tree/v4.3.0) (2023-01-10)
+[Full Changelog](https://github.com/codeigniter4/CodeIgniter4/compare/v4.2.12...v4.3.0)
+
+### Breaking Changes
+
+* fix: throws DatabaseException in DB connections by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6163
+* config: DB Error always throws Exception CI_DBUG by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6183
+* Config Property Types by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6214
+* refactor: loading app/Config/routes.php by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6293
+* fix: exceptionHandler may return invalid HTTP status code by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6228
+* feat: add Form helpers for Validation Errors by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6384
+* fix: ValidationInterface by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6253
+* [Reverted] Make Unique Index Name Unique by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6516
+* fix: types in database classes by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6527
+* fix: ResponseInterface (1) by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6556
+* Improve BaseConnection::getForeignKeyData() and Forge::addForeignKey() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6468
+* Refactor BaseBuilder *Batch() Methods by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6536
+* refactor: remove `type="text/javascript"` in <script> tag by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6606
+* fix: ResponseInterface (2) by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6569
+* Add ability to set index names by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6552
+* fix: MessageInterface inheritance by @MGatner in https://github.com/codeigniter4/CodeIgniter4/pull/6695
+* fix: add missing getProtocolVersion() in MessageInterface by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6702
+* Add Forge::processIndexes() to create indexes on existing table by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6676
+* fix: add missing ResultInterface::getNumRows() by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6778
+* feat: add OutgoingRequestInterface by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6698
+* fix: make Time immutable by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6771
+* feat: disallow `Model::update()` without WHERE clause by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6883
+* feat: do not throw exceptions during transactions by default by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6917
+* fix: don't change the variable type and filter all values in JSON request by @michalsn in https://github.com/codeigniter4/CodeIgniter4/pull/6954
+
+### Fixed Bugs
+
+* fix: SecurityException's HTTP status code by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6408
+* Fix UpsertTest::testUpsertWithMultipleSet by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6692
+* fix: support for assigning extra data for the view() method in controlled cells by @michalsn in https://github.com/codeigniter4/CodeIgniter4/pull/6681
+* Fix testMode() with upsert() and getCompiledUpsert() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6697
+* Fix BaseBuilder setAlias() and RawSql use with key value pairs by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6741
+* fix: BasePreparedQuery class to return boolean values for write-type queries by @michalsn in https://github.com/codeigniter4/CodeIgniter4/pull/6750
+* fix: Time::now() does not respect timezone when using setTestNow() by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6752
+* fix: remove CI_DEBUG check in Model by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6863
+* fix: BaseBuilder::getOperator() doesn't recognize LIKE operator in array expression by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6986
+* fix: Honeypot field appears when CSP is enabled by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/7029
+
+### Enhancements
+
+* Feature: Adding StreamFilterTrait by @iRedds in https://github.com/codeigniter4/CodeIgniter4/pull/6112
+* feat: add routes useSupportedLocalesOnly property by @pjsde in https://github.com/codeigniter4/CodeIgniter4/pull/6073
+* Feat add events for insertBatch()/updateBatch() by @pjsde in https://github.com/codeigniter4/CodeIgniter4/pull/6125
+* feat: improve namespaces command by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6142
+* feat: add method to insert empty data in Model by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6109
+* feat: Autoloader::sanitizeFilename() throws Exception by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6193
+* Language: Make production error message translatable (replaces #6197) by @sba in https://github.com/codeigniter4/CodeIgniter4/pull/6235
+* feat: add methods to modify files in Publisher by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6133
+* SQLite3 Connection getIndexData() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6221
+* feat: `spark filter:check` command by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6283
+* feat: Encryption CI3 compatibility by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6277
+* feat: `spark routes` shows route name by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6271
+* error_404.php translation and design by @sba in https://github.com/codeigniter4/CodeIgniter4/pull/6288
+* feat: make `CLI::input()` testable by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6335
+* Feature for Timer to measure callable performance by @rumpfc in https://github.com/codeigniter4/CodeIgniter4/pull/6321
+* feat: add IntBoolCast for Entity by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6348
+* Add new method `promptByMultipleKeys()` in CLI class by @rivalarya in https://github.com/codeigniter4/CodeIgniter4/pull/6302
+* Allow calling help info using `spark --help` by @paulbalandan in https://github.com/codeigniter4/CodeIgniter4/pull/6383
+* feat: autoload helpers by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6397
+* Add RawSql to BaseConnection->escape() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6332
+* feat: add locale param to `route_to()` by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6448
+* Postgre & SQLSRV - Should Never Have A Field Length For TEXT by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6405
+* [4.3] Fix tests. Changed StreamFilterTrait and CITestStreamFilter. by @iRedds in https://github.com/codeigniter4/CodeIgniter4/pull/6450
+* Create Forge::dropPrimaryKey() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6488
+* feat: add manual config for Composer package auto-discovery by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6503
+* Added view() method to route collections by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6568
+* When/WhenNot methods for db in a trait by @lonnieezell in https://github.com/codeigniter4/CodeIgniter4/pull/6574
+* Allow Cells to be auto-located within */Cells directories by @lonnieezell in https://github.com/codeigniter4/CodeIgniter4/pull/6601
+* Decamelize function by @lonnieezell in https://github.com/codeigniter4/CodeIgniter4/pull/6615
+* feat: Controlled Cells by @lonnieezell in https://github.com/codeigniter4/CodeIgniter4/pull/6620
+* Allow HTTP/3 to work and not be blocked. by @lonnieezell in https://github.com/codeigniter4/CodeIgniter4/pull/6595
+* feat: add method to disable controller filters by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6652
+* feat: implementation option http2 in `CURLRequest` by @ddevsr in https://github.com/codeigniter4/CodeIgniter4/pull/6679
+* Add BaseBuilder::upsert() and BaseBuilder::upsertBatch() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6600
+* Deallocate prepared statements by @fpoy in https://github.com/codeigniter4/CodeIgniter4/pull/6665
+* feat: Check logs against parts of the message only by @paulbalandan in https://github.com/codeigniter4/CodeIgniter4/pull/6704
+* feat: Opt-in logging of deprecations by @paulbalandan in https://github.com/codeigniter4/CodeIgniter4/pull/6705
+* feat: void element tags in helpers are selectable between `>` and `/>` by @ddevsr in https://github.com/codeigniter4/CodeIgniter4/pull/6789
+* feat: add $allowedHostnames for multiple domain support by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6785
+* new make:cell command  by @lonnieezell in https://github.com/codeigniter4/CodeIgniter4/pull/6864
+* Add BaseBuilder::deleteBatch() by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6734
+* Update Kint to 5.0.1 by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6893
+* Add `is_windows()` global function by @paulbalandan in https://github.com/codeigniter4/CodeIgniter4/pull/6884
+* fix: HTML output by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6899
+* feat: add SQLite3 Config busyTimeout by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6939
+* insertBatch updateBatch upsertBatch deleteBatch from query by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6689
+* feat: add IncomingRequest::getRawInputVar() method by @michalsn in https://github.com/codeigniter4/CodeIgniter4/pull/6943
+* feat: add closure validation rule by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6951
+* refactor: add Config\Session by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6989
+* feat: add IncomingRequest::is() method by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6995
+* feat: `spark routes` option to sort by handler by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/7015
+
+### Refactoring
+
+* Extracting the call handler for Spark commands from kernel. by @iRedds in https://github.com/codeigniter4/CodeIgniter4/pull/6110
+* chore: move Kint to `require-dev` by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6449
+* Improve `BaseBuilder::updateBatch()` SQL by @sclubricants in https://github.com/codeigniter4/CodeIgniter4/pull/6373
+* refactor: to fix psalm errors by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6535
+* Add template types to `Connection` by @paulbalandan in https://github.com/codeigniter4/CodeIgniter4/pull/6709
+* refactor: around URI by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6784
+* Add template types to Result by @paulbalandan in https://github.com/codeigniter4/CodeIgniter4/pull/6749
+* refactor: make now() testable by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6753
+* refactor: remove Workaround for Faker deprecation errors in PHP 8.2 by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6987
+* refactor: to fix psalm error by @kenjis in https://github.com/codeigniter4/CodeIgniter4/pull/6999
+
 ## [v4.2.12](https://github.com/codeigniter4/CodeIgniter4/tree/v4.2.12) (2023-01-09)
 [Full Changelog](https://github.com/codeigniter4/CodeIgniter4/compare/v4.2.11...v4.2.12)
 
diff --git a/system/CodeIgniter.php b/system/CodeIgniter.php
index 369fcdc49110..43f4caad61ea 100644
--- a/system/CodeIgniter.php
+++ b/system/CodeIgniter.php
@@ -47,7 +47,7 @@ class CodeIgniter
     /**
      * The current version of CodeIgniter Framework
      */
-    public const CI_VERSION = '4.2.12';
+    public const CI_VERSION = '4.3.0';
 
     /**
      * App startup time.
diff --git a/user_guide_src/source/changelogs/v4.3.0.rst b/user_guide_src/source/changelogs/v4.3.0.rst
index 024f60eba22b..671ce5c6cf0f 100644
--- a/user_guide_src/source/changelogs/v4.3.0.rst
+++ b/user_guide_src/source/changelogs/v4.3.0.rst
@@ -1,7 +1,7 @@
 Version 4.3.0
 #############
 
-Release Date: Unreleased
+Release Date: January 10, 2023
 
 **4.3.0 release of CodeIgniter4**
 
diff --git a/user_guide_src/source/conf.py b/user_guide_src/source/conf.py
index 89b2532c015d..16e0209a916d 100644
--- a/user_guide_src/source/conf.py
+++ b/user_guide_src/source/conf.py
@@ -23,10 +23,10 @@
 copyright = '2019-' + str(year_now) + ' CodeIgniter Foundation'
 
 # The short X.Y version.
-version = '4.2'
+version = '4.3'
 
 # The full version, including alpha/beta/rc tags.
-release = '4.2.12'
+release = '4.3.0'
 
 # -- General configuration ---------------------------------------------------
 
diff --git a/user_guide_src/source/installation/upgrade_430.rst b/user_guide_src/source/installation/upgrade_430.rst
index 04f44a03f4b4..69a4e756b2e0 100644
--- a/user_guide_src/source/installation/upgrade_430.rst
+++ b/user_guide_src/source/installation/upgrade_430.rst
@@ -295,9 +295,44 @@ All Changes
 ===========
 
 This is a list of all files in the **project space** that received changes;
-many will be simple comments or formatting that have no effect on the runtime:
-
-- app/Config/DocTypes.php
-- app/Config/Exceptions.php
-- app/Config/Routes.php
-- spark
+many will be simple comments or formatting that have no effect on the runtime.
+All atomic type properties in ``Config`` classes have been typed:
+
+*   app/Config/App.php
+*   app/Config/Autoload.php
+*   app/Config/CURLRequest.php
+*   app/Config/Cache.php
+*   app/Config/ContentSecurityPolicy.php
+*   app/Config/Cookie.php
+*   app/Config/Database.php
+*   app/Config/DocTypes.php
+*   app/Config/Email.php
+*   app/Config/Encryption.php
+*   app/Config/Exceptions.php
+*   app/Config/Feature.php
+*   app/Config/Filters.php
+*   app/Config/Format.php
+*   app/Config/Generators.php
+*   app/Config/Honeypot.php
+*   app/Config/Images.php
+*   app/Config/Kint.php
+*   app/Config/Logger.php
+*   app/Config/Migrations.php
+*   app/Config/Mimes.php
+*   app/Config/Modules.php
+*   app/Config/Pager.php
+*   app/Config/Paths.php
+*   app/Config/Routes.php
+*   app/Config/Security.php
+*   app/Config/Session.php
+*   app/Config/Toolbar.php
+*   app/Config/UserAgents.php
+*   app/Config/Validation.php
+*   app/Views/errors/html/error_404.php
+*   app/Views/errors/html/error_exception.php
+*   app/Views/errors/html/production.php
+*   app/Views/welcome_message.php
+*   composer.json
+*   env
+*   phpunit.xml.dist
+*   spark