Must be a squash merge

Changes from this PR to the previous release:

• Files to check: user_docs/en/userGuide.t2t, user_docs/en/changes.t2t developerGuide.t2t
• Compare this branch to the previous release
• Comparison command:
  git diff release-2024.1...addReleaseBlurb-- "**/en/*.t2t" "**/developerGuide.t2t"

Common mistakes to check for:

• Issue/PR reference in changes file is incorrect
• Incorrect spelling.
• Lists not terminated with a final - on a new line, matching indentation
• List items not indented by a multiple of 2 spaces (regex ^ ( )*-)
• Single grave marks ` instead of double grave marks `` (regex [^`]`[^`])
• Shortcuts added without code markdown, use two 'grave' characters (e.g. ``NVDA+d``)
• Double spaces (regex [^ ] )
• Inconsistent use of single vs double quote. (regex ' )