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

[kemister85]

Ticket: DOC-3305

Site: Migration Guides (main landing page)

Site: Migration 4 > 8
Site: Migration 5 > 8
Site: Migration 6 > 8

Changes:

• Provide clear, actionable guidance for upgrading between TinyMCE versions (4.x, 5.x, 6.x, 7.x, 8.x).

Pre-checks:

• Branch prefixed with feature/<version>/, hotfix/<version>/, staging/<version>/, or release/<version>/.

Review:

• Documentation Team Lead has reviewed

[MitchC1999]

Nice work!

[kemister85]

Update based on last commit

Summary of Changes Made

Removed incorrect UI Themes and Skins section (6→8 guide)

• Removed the "UI Themes and Skins" section from migration-from-6x-to-8x.adoc
• Theme changes (modern/lightgray/mobile → silver/oxide) occurred in v5, not v6-8

Fixed theme migration instructions (5→7 guide)

• Updated migration-from-5x.adoc to state that no theme changes are needed when migrating from v5 to v7
  v5 already uses the Silver theme with Oxide skin

Fixed incorrect code example (5→8 guide)

• Replaced the wrong autocompleter example in the table_responsive_width section with the correct table configuration example

Clarified plugin removal sections (6→8 guide)

• Added notes to imagetools and textcolor sections clarifying they were removed in v6.0
• Added notes that these sections only apply when migrating from v5 or earlier

5. Fixed reversed skipFocus/skip_focus examples (multiple guides)

Corrected examples in:

• migration-from-6x-to-8x.adoc
• migration-from-4x-to-8x.adoc
• migration-from-5x-to-8x.adoc
• Changed from showing skip_focus as old → skipFocus as new to showing skipFocus as deprecated → skip_focus as recommended

Fixed documentBaseUrl replacement API (all guides)

• Updated all migration guides to use editor.editorManager.documentBaseURI.getURI() instead of editor.documentBaseURI.getURI()

Updated files:

• migration-from-6x-to-8x.adoc
• migration-from-7x.adoc
• migration-from-4x-to-8x.adoc
• migration-from-5x-to-8x.adoc

Additional Verification

• Cross-referenced changes against official TinyMCE changelogs (v5, v6, v7, v8)

[ShiridiGandham]

My view is that we should move this forward and then wait for feedback from customers. We’re ready to amend the content and apply hotfixes at any time if needed. So let’s proceed and release.