Synergy 1

v1.22.0-beta (September 28, 2026)

Improvements

• Images are now sent in the format they were copied in, instead of as uncompressed bitmaps, so more apps can paste them and large screenshots and photos fit well within the limit.
• Raised the default clipboard size limit from 3 MB to 128 MB, as a new setting. A limit saved by an earlier version is not carried over, because the old limit worked around slow transfers that no longer happen.
• Animated GIFs, SVG images, RTF rich text, WebP and TIFF images are now shared as they are, instead of being converted or left out.
• Large clipboards no longer hold up the mouse: a clipboard is now sent in small pieces behind your keyboard and mouse input, once the mouse comes to rest on the other computer.
• The status bar now shows when a clipboard is being sent or received, and warns when one is too large to share instead of dropping it without a word.
• Clipboard sharing on Wayland now includes formatted text and JPEG, BMP, TIFF and WebP images.
• The locked settings file no longer locks the clipboard size limit. It still locks whether clipboard sharing is on.

Bug fixes

• Stopped a client dropping a healthy connection while receiving a large clipboard.
• Stopped every copy on a Mac or Windows computer being sent twice.
• Restored timing below a second, so settings such as the switch delay take effect as set.

Windows

• Stopped a large copy freezing the keyboard and mouse until the copying app had finished preparing its data.
• Stopped a Windows client disconnecting partway through a large clipboard sent over TLS.
• Corrected clipboard detection on a Windows client so every copy is shared, not only the first one after it receives a clipboard.
• Restored sharing of images that apps copy only as PNG, JPEG or other image files.

macOS

• Restored sharing of images copied on a Mac, and images sent to a Mac are now written as PNG, JPEG and TIFF so Mac apps can paste them.
• Stopped text shared to a Mac getting old-style carriage-return line breaks.
• Stopped a copy made just before moving off a Mac being missed.
• Stopped copying a list of files or links on a Mac hanging the clipboard read.

Linux and Wayland

• Corrected pasting on a Wayland server so a copy made on another computer pastes, instead of the old clipboard.
• Stopped a Wayland server re-sending an unchanged clipboard on every switch and emptying the other computers' clipboards.
• Stopped pastes on a Wayland server stalling while it offered clipboard formats it no longer had.
• Restored pasting large images into Qt apps on Wayland, and sharing large images copied from them.
• Restored image copy and paste on X11 with apps that use PNG or JPEG.