Beta Testing

From time to time, you’ll find here the latest changes and newest features for what will come in the next release. These ‘release candidates’ have a limited lifespan, an expiration date. Not to be confused with your 30-day demo period, release candidates expire on a specific date that it will announce to you each time you run it, something like this:

By that time, either a NEW release candidate will be announced (on this page) or the release candidate will become final and posted to the normal download section of the website.

Current Release Candidate: AbsoluteTelnet 13.17 RC9
Deployed Date: July 23, 2026
Expiration Date: August 23, 2026


Download links:

32/64 bit download

32 bit download

This release candidate for version 13.17 contains the following changes:

RC1

  • Implemented Bracketed Paste MIME
  • Implemented Kitty style ClipboardImplemented OSC52 keyboard
  • Fully populate capabilities exposed through XTGETTCAP
  • Implemented DECRQCRA – host queries checksum for a rectangular area of the screen
  • Fix implementation of DECRQSS – host requests information about a specific mode
  • Implement support for Kitty styled and colored underlines
  • Implement Italic text attribute
  • Added support for color Emoji
  • Added in-band window resizing
  • Better support for symbols not supported in most fixed-width fonts
  • Enhanced speed by decoupling socket workers from UI updates
  • Added popup ‘toast’ when data is copied to the clipboard
  • Add support for XTVERSION – send application name and version to host
  • Fixed caret rendering issue when ESO is used.
  • Fixed problem with scrollbar caused by 13.16

RC2

  • Implemented sixel graphics within the terminal
  • Implemented kitty keyboard protocol
  • Fixed a few display glitches in RC1
  • pixel calculations in pty-req and window change SSH messages are now accurate
  • Disable scrollbar and scrollback when alt screen is enabled (claude fullscreen tui)
  • Add some missing xterm key bindings.

RC3

  • Fixed display glitch in RC1/RC2

RC4

  • Wrap webauthn (for fido keys) in a dynamic loader so we can load under wine on linux

RC5

  • Fix TAPI device enumeration quirk that surfaced under WINE
  • Fixed remote mouse behavior for btop & claude
  • override remote mouse by holding shift key

RC6

  • Fixed CISCO switch compatibility problem caused by sending SSH channel window adjustment messages earlier than expected.
  • Implement DEC private mode 1016 (mouse reports in pixel coordinates)
  • Add support for kitty pointer types
  • minimal viable implementation of kitty graphics

RC7

  • Gracefully reconnect to D2D for color emoji when needed
  • Implement OSC8 hyperlinks

RC8

  • Fix ‘copy on select’ so that it respects selection extension
  • Tweak location of ‘copy on paste’ text for remote clipboard operations
  • Clear local selection when clicks are sent to remote host

RC9

  • Optimize terminal throughput. Most noticeable on graphic and ascii animations
  • Fix SSH bug where changing window size too early would break the SSH connection
  • Paste images (screenshots) and files directly into a remote session over SFTP.
  • Add Windows 9001 style keyboard events
  • Add cursor style control (DECSCUSR) Apps can now set cursor shape (block/underline/beam) and blink.
  • Set initial pty settings (iutf8, verase) to match what the terminal sends
  • Add ‘visual’ bell
  • Add some missing xterm key combinations
  • Add support for xterm ‘modifyOtherKeys’
  • Fixed sixel background color handling
  • Fixed sixel ‘scrolling’ directive, which was inverted
  • Optimizations for the escape sequence parser.
  • Deprecate use of ‘Terminal’ font
  • Get spacing of Kitty graphics right
  • Other optimizations and bug fixes