Version 1.6.4

• translation memory tuning
• Unix: restore compatibility with GTK+ 2
• misc fixes
• minor UI improvements (better wording etc.)
• OS X: misc fixes for Mavericks compatibility
• OS X/Win: update bundled Gettext to 0.18.3.2
• translations updates

Version 1.6.3

• fix invocation of external parser tools that need PATH
• Unix: use XDG_CONFIG_HOME for dotfile location
• OS X: fix conflict with Smart Quotes on Mavericks
• translations updates

Version 1.6.2

• fix TM failures with non-ASCII paths on Windows
• add support for Zend Framework's .phtml
• and support for WordPress' translators: comments
• translations updates

Version 1.6.1

• fixes to TM migration code
• OS X: fixes for Retina displays

Version 1.6

• improved languages handling (entering, sorting, plural forms expressions)
• completely new translation memory implementation
• assorted UI improvements
• better build systems on OS X and Windows
• OS X: minimum required version is 10.7; PPC builds are no longer supported