Notepad++ v7.8.5 is 4 versions old

Notepad++ v7.8.9 Enhancements & bug-fixes:

Fix Line operations (join lines, split lines, remove duplicate lines and sort lines) doing one too many lines issue.
Fix the regression of jump line failure via command line (-n).
Fix URL Hovered colour disappears after modifying any Clickable Link Settings regression.
Fix URL is not clickable in certain stuation while wrapped is enabled.
Fix “Save” not working in Windows dialog.
Fix Flickering cursor after double clicking a found line in find results.
Fix Found line may not be centered by double clicking in find results, if word wrap is on.
Fix wrong horizontal scroll bar position after restoring Window position.
Fix Find result window output TAB-width incoherent issue.

Notepad++ v7.8.8 Enhancements & bug-fixes:

Fix accented characters in ANSI files not found in “find in files” and “replace in files” commands issues.
Add an option to improve rendering special Unicode characters by using Scintilla’s DirectWrite technology.
Fix URL invisible issue in dark themes.
Fix the focus not on the opening new file issue.
Fix Workspace (Project panel), Folder As Workspace and function list keep focus issue after double clicking an item.
Add Ctrl+Backspace ability to delete word for comboboxes in Find/Replace dialog.
Add ability to find-all in selected text.
Fix wrong treatment of backslashes as escape sequences in autocompletion.
Enhance “Remove Empty Lines” command: Allow scope to be limited by an active selection.
Fix loading of project & session files by drag & drop not working issue.
Fix block selection cursor wrong positions after typing TAB.
Add confirmation prompt to “Replace all in all opened documents” command to avoid PBKAC.

Notepad++ v7.8.7 Enhancements & bug-fixes:

Fix new style save dialog by selecting right file filter and adding extension automatically.
Add right-click context menu to bookmark margin.
Add sub-menu bullets for cascaded Encoding and Language menus.
Display file name as root of workspace instead of “Workspace”.
Add file extension automatically for session files and workspace files while saving in new style dialog.
Fix file reading failure (network problem) not detected issue.
Improve Document Map precision.
Fix clickable links break syntax highlighting issue.
Fix current range detached from Document Map issue.
Disallow backward regex searches due to sometimes surprising results (an non-UI option is available to enable it).
Fix wrong project panel at start by opening a project via command line.
Allow user to skip *.* when adding only excluding Filters for Find/Replace In Files.
Fix Doc switcher icon state update issue for cloned documents.
Assign CTRL-M as default shortcut for invoking mark dialog.
Fix also a folding visual glitch in Find result.
Add count of files searched to ‘Find result’ output.
Fix Find/Replace history lost issue.
Fix bug of Mark clearing in selection mode.
Fix auto-completion suggest the same word while the word being modified.

Notepad++ v7.8.6 Enhancement & bug-fixes:

Add multi-column marker (multi-line edge) feature.
Add dynamical sorting feature for Folder as Workspace.
Make MRU tab activate instead of rightmost tab while tab closure (if MRU enabled).
Fix folding state lost on the next startup issue.
Make Replace-in-Files confirmation dialog modal to prevent from crashing.
Add support of smart-indenting for Perl and Rust.
Make recorded macro (IDC_FINDNEXT & IDC_FINDPREV)retro-compatible up to 7.8.4.