Version 1.5.10.3

• Updated libpurple to 2.12.0 from 2.10.12, fixing a security issue that could lead to remote code execution (CVE 2017-2640).
• AIM: Updated AIM connectivity for continued AIM support. (#17097)
• Facebook Chat: Removed Facebook Chat service. Facebook no longer supports Adium's way of connecting (XMPP).
• MSN: Removed MSN service. Libpurple no longer supports it. See ​http://ismsndeadyet.com/
• Yahoo: Removed Yahoo! service. Libpurple no longer supports it and it hasn't been working since 5 August 2016 as Yahoo has completely reimplemented their protocol. See ​https://yahoo.tumblr.com/post/145715934739/q2-2016-progress-report-on-our-product This also removes support for Yahoo! Japan. According to ​http://messenger.yahoo.co.jp/ the service ended 26 March 2014.
• Fixed UI glitches in Adium’s preferences on OS X 10.10. (#16803)
• Twitter: Fixed a problem with signing in to Twitter and updating the timeline on OS X 10.10. (#16882)
• Bonjour: Fixed a crash upon file transfer completion. (Quentin Les) (#16038, #16182)
• Updated Adium's codesigning signature to a version trusted by Gatekeeper on OS X 10.9.5 and later. (#16983)
• Fixed building Adium on macOS 10.11 and later. (#17093)
• Dropped support for 32bit Macs.
• Updated documentation.