- Visibility of columns in the auto-type entry selection dialog can now be customized using the new 'Options' button

- Added auto-type option 'An entry matches if the host component of its URL is contained in the target window title'

- Added shortcut keys: Ctrl+Shift+O for 'Open URL', Ctrl+Shift+U for copying URLs to the clipboard, Ctrl+I for 'Add Entry', Ctrl+R for synchronizing with a file, Ctrl+Shift+R for synchronizing with a URL

- Ensuring same keyboard layouts during auto-type is now optional (option enabled by default)

- Plain text KDB4 XML exports now store the memory protection flag of strings in an attribute 'ProtectInMemory'

- Added option to use database lock files (intended for storage providers that don't lock files while writing to them, like e.g. some FTP servers); the option is turned off by default (and especially for local files and files on a network share it's recomme

- Added UIFlags bit for disabling the controls to specify after how many days the master key should/must be changed

- Added support for in-memory protecting strings that are longer than 65536 characters

- Added workaround for '@' .NET SendKeys issue

- .NET 4.0 is now preferred, if installed

- PLGX plugins are now preferably compiled using the .NET 4.0 compiler, if KeePass is currently running under the 4.0 CLR

- Automatic update checks are now performed at maximum once per day (you can still check manually as often as you wish)

- Auto-Type: entry titles and URLs are now Spr-compiled before being compared with the target window title

- Decoupled the options 'Show expired entries' and 'Show entries that will expire soon'

- Specifying the data hiding setting (using asterisks) in the column configuration dialog is now done using a checkbox

- The entry view now preferably uses the hiding settings (asterisks) of the entry list columns

- Improved entry expiry date calculation

- Enhanced Password Agent importer to support version 2.6.2

- Enhanced SplashID importer to import last modification dates

- Improved locating of system executables

- Password generator profiles are now sorted by name

- Separated built-in and user-defined password generator profiles (built-in profiles aren't stored in the configuration file anymore)

- Improved naming of shortcut keys, and shortcut keys are now displayed in tooltips

- Internal window manager can now close windows opened in other threads

- Improved entry touching when closing the entry editing dialog by closing the window (using [X], Esc, ...)

- Improved behavior when entering an invalid URL in the 'Open URL' dialog

- Improved workaround for Mono tab bar height bug

- ShInstUtil: improved Native Image Generator version detection

- Unified in-memory protection

- In-memory protection performance improvements

- Developers: in-memory protected objects are now immutable and thread-safe

- Various UI text improvements

- Various code optimizations

- Minor other improvements

- The cached/temporary custom icons image list is now updated correctly after running the 'Delete unused custom icons' command