v 0.5.18

• Voice messages auto download and in-app playing support.
• Audio now is working through OpenAL library.
• Linux version now is not dependent on libpulse.

v 0.5.17

• Multi selection added to media overview.
• Photos in overview are displayed in right order now.
• Some crashes fixed.

v 0.5.16

• Navigate through photos fixed.
• Media overview in profiles (photos, video files, documents, voice messages).
• Going to current message in history from media overview context menu.
• Some protocol+network bugs fixed.
• OS X application signed by Developer ID certificate.

v 0.5.15

• Fixes in new photo viewer.

v 0.5.14

• New photo viewer, fullscreen, with controls and moving through conversation photos.
• Checkbox for sending images from clipboard without compression as documents.

v 0.5.13

• Some network and protocol issues fixed.

v 0.5.12

• Fixed diacritics input in Linux.
• Fixed saving files with incorrect server-side filenames in Windows.

v 0.5.11

• High definition graphics added (2x interface scale and OS X retina displays).
• Some invalid links highlighting removed.

v 0.5.10

• Escape key closes photo view.
• On OS X now Ctrl+Tab and Ctrl+Shift+Tab are working for dialogs switching.
• On Linux fixed notifies (they don't grab focus and aren't seen in windows switcher), fixed keyboard layout change.
• On Linux all application data is now stored in ~/.TelegramDesktop directory.

v 0.5.9

• Choose between notification with preview, with only sender's name (message preview hidden) or without any information.
• Sending documents from "Send to" explorer context menu added, see a checkbox in Settings (only Windows version).
• Little features: Ctrl+Tab / Ctrl+Shift+Tab switch to near dialogs, links without top-level domain highlight, version in About dialog now leads to version history.
• Some bugs fixed: maximize button in Ubuntu, running different copies of app under different users at the same time in Windows, Surface touchscreen support fixed.
• Added 32 bit Ubuntu version.