+4.0 (2018-03-20)

+----------------

+- New chat theme including a new font

+- Support for message carbons (XEP-0280)

+- Enabled trellis mode as a default feature, allowing several tiled chats windows to be shown at once

+- Redesigned keyword highlighting

+- Improve date formatting

+- Fix Last Message Correction in multi client scenarios

+- Fix UI layout issue for translations that require right-to-left (RTL) layout

+- Fix UX issues in trellis mode

+- Improvements to font size handling in the chat theme

+- Fix display of default avatar on Windows

+- Support for automatic software updates on macOS

+- macOS releases are now code-signed

+- Support for unicode emojis on macOS

+- Add AppImage for Linux 64-bit as a supported platform

+- Improved spell checker support on Linux

+- And assorted smaller features and usability enhancements

+

+- Redesigned keyword highlighting

+4.0 (2017-03-20)

+----------------

+- Moved code-base to C++11

+ - Use C++11 threading instead of Boost.Thread library

+ - Use C++11 smart pointers instead of Boost's

+- Migrated from Boost.Signals to Boost.Signals2

+- Build without warnings on our CI platforms

+- General cleanup like remove of superflous files and #include statements. This means header files that previously were included implictly need to be explicitly included now

+- Support IPv6 addresses in URLs

+- Handle sessions being closed by the server

+- Verify certificates when using HTTPS in BOSH connections

+- In memory caching of latest entity capabilites lookups

+- Changed source code style to use soft tabs (4 spaces wide) instead of hard tabs. Custom patches for Swiften will need to be reformatted accordingly

+- Require a TLS backend for building

+- Update 3rdParty/lcov to version 1.12

+- Fix several possible race conditions, smaller leaks, and other small bugs

+