diff --git a/.dev/tests/cypress/helpers.js b/.dev/tests/cypress/helpers.js
index 3bf3d95a3c8..b60c1c54461 100644
--- a/.dev/tests/cypress/helpers.js
+++ b/.dev/tests/cypress/helpers.js
@@ -16,8 +16,15 @@ export function addFormChild( name ) {
 	cy.get( '.components-popover__content button' ).contains( /insert after|add after/i ).click( { force: true } );
 	cy.get( '[data-type="coblocks/form"] [data-type="core/paragraph"]' ).click( { force: true } );
 
-	cy.get( '.edit-post-header-toolbar' ).find( '.edit-post-header-toolbar__inserter-toggle' ).click( { force: true } );
-	cy.get( '.block-editor-inserter__search .components-search-control__input' ).click().type( name );
+	if ( isWP65AtLeast() ) {
+		cy.get( '.edit-post-header-toolbar' ).find( '.editor-document-tools__inserter-toggle' ).click( { force: true } );
+
+		cy.get( '.components-input-control__input' ).click().type( name );
+	} else {
+		cy.get( '.edit-post-header-toolbar' ).find( '.edit-post-header-toolbar__inserter-toggle' ).click( { force: true } );
+
+		cy.get( '.block-editor-inserter__search .components-search-control__input' ).click().type( name );
+	}
 
 	cy.get( '.editor-block-list-item-coblocks-field-' + name ).first().click( { force: true } );
 	cy.get( `[data-type="coblocks/field-${ name }"]` ).should( 'exist' ).click( { force: true } );
@@ -137,8 +144,15 @@ export function addBlockToPost( blockName, clearEditor = false ) {
 export function addNewGroupToPost() {
 	clearBlocks();
 
-	cy.get( '.edit-post-header [aria-label="Add block"], .edit-site-header [aria-label="Add block"], .edit-post-header-toolbar__inserter-toggle' ).click();
-	cy.get( '.block-editor-inserter__search-input,input.block-editor-inserter__search, .components-search-control__input' ).click().type( 'group' );
+	if ( isWP65AtLeast() ) {
+		cy.get( '.editor-document-tools__inserter-toggle' ).click();
+
+		cy.get( '.components-input-control__input' ).click().type( 'group' );
+	} else {
+		cy.get( '.edit-post-header [aria-label="Add block"], .edit-site-header [aria-label="Add block"], .edit-post-header-toolbar__inserter-toggle' ).click();
+
+		cy.get( '.block-editor-inserter__search-input,input.block-editor-inserter__search, .components-search-control__input' ).click().type( 'group' );
+	}
 
 	cy.wait( 1000 );
 
@@ -196,9 +210,15 @@ export function viewPage() {
 		}
 	} );
 
-	cy.get( 'button[data-label="Post"]' );
+	if ( isWP65AtLeast() ) {
+		cy.get( '[data-tab-id="edit-post/document"]' );
 
-	cy.get( '.edit-post-post-url__dropdown button' ).click();
+		cy.get( '.editor-post-url__panel-dropdown button' ).click();
+	} else {
+		cy.get( 'button[data-label="Post"]' );
+
+		cy.get( '.edit-post-post-url__dropdown button' ).click();
+	}
 
 	cy.get( '.editor-post-url__link' ).then( ( pageLink ) => {
 		const linkAddress = Cypress.$( pageLink ).attr( 'href' );
@@ -461,9 +481,14 @@ export function setColorPanelSetting( settingName, hexColor ) {
  * @param {RegExp} panelText The panel label text to open. eg: Color Settings
  */
 export function openSettingsPanel( panelText ) {
-	// Ensure block tab is selected.
-	if ( Cypress.$( 'button[data-label="Block"]:not(.is-active)' ) ) {
-		cy.get( 'button[data-label="Block"]' ).click();
+	if ( isWP65AtLeast() ) {
+		cy.get( '[data-tab-id="edit-post/block"]' ).click();
+	} else {
+		// Ensure block tab is selected.
+		// eslint-disable-next-line no-lonely-if
+		if ( Cypress.$( 'button[data-label="Block"]:not(.is-active)' ) ) {
+			cy.get( 'button[data-label="Block"]' ).click();
+		}
 	}
 
 	cy.get( '.components-panel__body' )
@@ -588,11 +613,14 @@ export function isNotWPLocalEnv() {
 }
 
 // A condition to determine if we are testing on WordPress 6.4+
-// This function should be removed in the process of the work for WP 6.5 compatibility
 export function isWP64AtLeast() {
 	return Cypress.$( "[class*='branch-6-4']" ).length > 0 || Cypress.$( "[class*='branch-6-5']" ).length > 0;
 }
 
+export function isWP65AtLeast() {
+	return Cypress.$( "[class*='branch-6-5']" ).length > 0 || Cypress.$( "[class*='branch-6-6']" ).length > 0;
+}
+
 function getIframeDocument( containerClass ) {
 	return cy.get( containerClass + ' iframe' ).its( '0.contentDocument' ).should( 'exist' );
 }
diff --git a/.eslintrc.js b/.eslintrc.js
index 0b64fbb6696..460d803164c 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -32,6 +32,7 @@ module.exports = {
 		'sort-imports': [ 'off' ],
 		'sort-keys': [ 'off' ],
 		'react/jsx-sort-props': [ 'off' ],
+		'react-hooks/exhaustive-deps': [ 'off' ],
 	},
 
 	noInlineConfig: false,
diff --git a/.github/workflows/test-wp-next.yml b/.github/workflows/test-wp-next.yml
index 6b75ff7120b..191feb1d66d 100644
--- a/.github/workflows/test-wp-next.yml
+++ b/.github/workflows/test-wp-next.yml
@@ -22,8 +22,8 @@ jobs:
     if: needs.check_if_released.outputs.should_run_workflow == 'true'
     runs-on: ubuntu-latest
     outputs:
-      # Should be current latest WP Next release on `wordpress.org`. eg: `https://wordpress.org/wordpress-6.4-RC3.zip`
-      wp_next: "https://wordpress.org/wordpress-6.4-RC3.zip"
+      # Should be current latest WP Next release on `wordpress.org`. eg: `https://wordpress.org/wordpress-6.5-beta2.zip`
+      wp_next: "https://wordpress.org/wordpress-6.5-RC1.zip"
     steps:
       - run: echo "Setting WP Next Constant"
 
@@ -35,7 +35,7 @@ jobs:
     uses: ./.github/workflows/test-e2e-cypress.yml
     with:
       wpVersion: ${{ needs.set_constant.outputs.wp_next }}
-      installPath: "tests-wordpress-6.4-RC3"
+      installPath: "tests-wordpress-6.5-RC1"
       theme: "https://downloads.wordpress.org/theme/go.zip"
     concurrency:
       group: chrome-wp-next
diff --git a/src/blocks/media-card/test/media-card.cypress.js b/src/blocks/media-card/test/media-card.cypress.js
index c5057fd7e08..9b1c07c164b 100644
--- a/src/blocks/media-card/test/media-card.cypress.js
+++ b/src/blocks/media-card/test/media-card.cypress.js
@@ -1,14 +1,24 @@
+import { isWP65AtLeast } from '../../../../.dev/tests/cypress/helpers';
+
 describe( 'Test CoBlocks Media Card Block', function() {
 	/**
 	 * Test that we can not insert a media-card block into the page.
 	 * Media-card blocks is deprecated and should not be usable.
 	 */
 	it( 'Test media-card block in not insertable.', function() {
-		cy.get( '.edit-post-header-toolbar' ).find( '.edit-post-header-toolbar__inserter-toggle' ).then( ( inserterButton ) => {
-			if ( ! Cypress.$( inserterButton ).hasClass( 'is-pressed' ) ) {
-				cy.get( inserterButton ).click();
-			}
-		} );
+		if ( isWP65AtLeast() ) {
+			cy.get( '.edit-post-header-toolbar' ).find( '.editor-document-tools__inserter-toggle' ).then( ( inserterButton ) => {
+				if ( ! Cypress.$( inserterButton ).hasClass( 'is-pressed' ) ) {
+					cy.get( inserterButton ).click();
+				}
+			} );
+		} else {
+			cy.get( '.edit-post-header-toolbar' ).find( '.edit-post-header-toolbar__inserter-toggle' ).then( ( inserterButton ) => {
+				if ( ! Cypress.$( inserterButton ).hasClass( 'is-pressed' ) ) {
+					cy.get( inserterButton ).click();
+				}
+			} );
+		}
 
 		cy.get( '.block-editor-inserter__search' ).find( 'input' ).clear();
 		cy.get( '.block-editor-inserter__search' ).click().type( 'media-card' );
diff --git a/src/components/media-filter-control/test/media-filter-control.cypress.js b/src/components/media-filter-control/test/media-filter-control.cypress.js
index 59931b56d8d..6b37eedc0f4 100644
--- a/src/components/media-filter-control/test/media-filter-control.cypress.js
+++ b/src/components/media-filter-control/test/media-filter-control.cypress.js
@@ -2,6 +2,7 @@
  * Include our constants
  */
 import * as helpers from '../../../../.dev/tests/cypress/helpers';
+import { isWP65AtLeast } from '../../../../.dev/tests/cypress/helpers';
 
 const filters = [
 	'Original',
@@ -95,8 +96,12 @@ describe( 'Test CoBlocks Media Filter Control component', function() {
 		helpers.upload.imageToBlock( 'core/gallery' );
 		helpers.selectBlock( 'core/gallery' );
 
-		cy.get( '.components-tab-panel__tab-content' );
-		cy.get( '.block-editor-block-toolbar__slot .components-coblocks-media-filter' ).click();
+		if ( isWP65AtLeast() ) {
+			cy.get( '.components-coblocks-media-filter' ).click();
+		} else {
+			cy.get( '.components-tab-panel__tab-content' );
+			cy.get( '.block-editor-block-toolbar__slot .components-coblocks-media-filter' ).click();
+		}
 
 		let childIteration = 1;