DOC-3305_v2: Version (X) to latest (8) migration guides.

modules/ROOT/nav.adoc

@@ -171,11 +171,16 @@
 **** xref:bundling-themes.adoc[Themes]
 ** xref:upgrading.adoc[Upgrading {productname}]
 ** xref:migration-guides.adoc[Migration guides]
-*** xref:migration-from-4x.adoc[Migrating from {productname} 4]
-*** xref:migration-from-5x.adoc[Migrating from {productname} 5]
-*** xref:migration-from-6x.adoc[Migrating from {productname} 6]
-*** xref:migration-from-7x.adoc[Migrating from {productname} 7]
-** xref:migration-from-froala.adoc[Migrating from Froala]
+*** Direct Migration Guides to Latest Major Version (8)
+**** xref:migration-from-4x-to-8x.adoc[Migrating from 4 to 8]
+**** xref:migration-from-5x-to-8x.adoc[Migrating from 5 to 8]
+**** xref:migration-from-6x-to-8x.adoc[Migrating from 6 to 8]
+**** xref:migration-from-7x.adoc[Migrating from 7 to 8]
+*** Legacy Step-by-Step Migration Guides
+**** xref:migration-from-4x.adoc[Migrating from 4 to 7]
+**** xref:migration-from-5x.adoc[Migrating from 5 to 7]
+**** xref:migration-from-6x.adoc[Migrating from 6 to 7]
+*** xref:migration-from-froala.adoc[Migrating from Froala]
 ** xref:generate-rsa-key-pairs.adoc[Generate public key pairs]
 ** xref:understanding-editor-loads.adoc[Understanding editor loads]
 * xref:examples.adoc[Examples]

modules/ROOT/pages/creating-an-icon-pack.adoc

@@ -17,6 +17,18 @@ A {productname} icon pack is a JavaScript construct containing strings of link:h
 
 An icon pack only **requires** the custom icons to be included; the default {productname} icons are used as a fallback for icons missing from the custom icon pack.
 
+=== Icon Pack Structure and Loading
+
+[IMPORTANT]
+====
+*Understanding Icon Pack Loading:*
+
+{productname} loads icon packs from the path `+TINYMCE_BASE/icons/${iconPackName}/icons.js+`, where:
+
+* `TINYMCE_BASE` is the {productname} root directory (the directory containing `tinymce.min.js`).
+* `+${iconPackName}+` is the name of the icon pack.
+====
+
 == Registering an icon pack
 
 Icon packs are registered with {productname} using the IconManager. Whether creating the icon pack manually or using the xref:using-the-icon-pack-template.adoc[Icon Pack Template tool], the JavaScript required to setup an icon pack looks like:

modules/ROOT/pages/migration-from-4x.adoc

@@ -29,15 +29,15 @@ tinymce.init({
 
 === Plugin Ecosystem
 
-The {productname} plugin ecosystem was significantly restructured in version 6.0, with several plugins being removed, folded into the {productname}, or reclassified as premium features. The following breakdown clarifies the status of each affected plugin.
+The {productname} plugin ecosystem was significantly restructured in version 6.0, with several plugins being removed, folded into the {productname} core, or reclassified as premium features. The following breakdown clarifies the status of each affected plugin.
 
 * **Removed Plugins** (no longer available as of {productname} 6.0):
 ** `bbcode`, `fullpage`, `legacyoutput`: Deprecated in 5.9.0. Removed in 6.0.
 
-* **Integrated into {productname}**:
-** `paste`, `hr`, `noneditable`, `table`, `print`, `colorpicker` and `contextmenu`: These plugins were absorbed into {productname} and no longer require separate installation.
-** `contextmenu`: Deprecated in version 5.0 following the integration of context menu functionality into {productname} editor. Removed in version 6.0. For more information, see the link:https://www.tiny.cloud/docs/tinymce/latest/contextmenu/[contextmenu documentation].
-** `tabfocus`: Removed in 6.0. Keyboard navigation via Tab is now handled by the browser and {productname}.
+* **Integrated into {productname} core**:
+** `paste`, `hr`, `noneditable`, `table`, `print`, `colorpicker` and `contextmenu`: These plugins were absorbed into {productname} core and no longer require separate installation.
+** `contextmenu`: Deprecated in version 5.0 following the integration of context menu functionality into {productname} core editor. Removed in version 6.0. For more information, see the link:https://www.tiny.cloud/docs/tinymce/latest/contextmenu/[contextmenu documentation].
+** `tabfocus`: Removed in 6.0. Keyboard navigation via Tab is now handled by the browser and {productname} core.
 
 * **Now Premium Only**:
 ** `mediaembed`, `tableofcontents`: These features are available through premium plugins.
@@ -82,7 +82,7 @@ If you used the following toolbar buttons or menu options, they have changed nam
 
 {productname} 6 → {productname} 7:
 
-* `InsertOrderedList` and `InsertUnorderedList` commands were removed from {productname} and are now provided by the `lists` plugin.
+* `InsertOrderedList` and `InsertUnorderedList` commands were removed from {productname} core and are now provided by the `lists` plugin.
 * Default text pattern triggers were updated to activate on `Space` instead of `Enter`. A `trigger` property was added to configure block-level text pattern behavior.
 
 Refer to the latest release notes at link:https://www.tiny.cloud/docs/tinymce/latest/release-notes/[latest release notes] for further details.