New Features:

• Key transformation library: KeePass can now use Windows' CNG/BCrypt API for key transformations (about 50% faster than the KeePass built-in key transformation code; by increasing the amount of rounds by 50%, you'll get the same waiting time as in 2.07, but the protection against dictionary and guessing attacks is raised by a factor of 1.5; only Windows Vista and higher).
• Added support for sending keystrokes (auto-type) to windows that are using different keyboard layouts.
• Added option to remember key file paths (enabled by default).
• Added internal editor for text files (text only and RTF formatted text; editor can edit entry attachments).
• Internal data viewer: added support for showing rich text (text with formatting).
• Added inheritable group settings for disabling auto-type and searching for all entries in this group (see tab 'Behavior'); for new recycle bins, both properties are set to disabled.
• Added new placeholders: {DB_PATH}, {DB_DIR}, {DB_NAME}, {DB_BASENAME}, {DB_EXT}, {ENV_DIRSEP}, {DT_SIMPLE}, {DT_YEAR}, {DT_MONTH}, {DT_DAY}, {DT_HOUR}, {DT_MINUTE}, {DT_SECOND}, {DT_UTC_SIMPLE}, {DT_UTC_YEAR}, {DT_UTC_MONTH}, {DT_UTC_DAY}, {DT_UTC_HOUR}, {DT_UTC_MINUTE}, {DT_UTC_SECOND}.
• The password character picking dialog now supports pre-defining the number of characters to pick; append :k in the placeholder to specify a length of k (for example, {PICKPASSWORDCHARS3:5} would be a placeholder with ID 3 and would pick 5 characters from the password); advantage: when having picked k characters, the dialog closes automatically, i.e. saves you to click [OK].
• IDs in {PICKPASSWORDCHARSn} do not need to be consecutive anymore.
• The password character picking dialog now first dereferences passwords (i.e. placeholders can be used here, too).
• Added '-minimize' command line option.
• Added '-iousername', '-iopassword' and '-iocredfromrecent' command line options.
• Added '--auto-type' command line option.
• Added support for importing FlexWallet 1.7 XML files.
• Added option to disable protecting the clipboard using the CF_CLIPBOARD_VIEWER_IGNORE clipboard format.
• Added support for WebDAV URLs (thanks to Ryan Press).
• Added shortcut keys in master key prompt dialog.
• Added entry templates functionality (first specify an entry templates group in the database settings dialog, then use the 'Add Entry' toolbar drop-down button).
• Added AceCustomConfig class (accessible through host interface), that allows plugins to store their configuration data in the KeePass configuration file.
• Added ability for plugins to store custom data in KDBX database files (PwDatabase.CustomData).
• Added interface for custom password generation algorithm plugins.
• URLs in the entry preview window are now always clickable (especially including cmd:// URLs).
• Added option to copy URLs to the clipboard instead of opening them (Options -> Interface, turned off by default).
• Added option to automatically resize entry list columns when resizing the main window (turned off by default).
• Added 'Sync' command in KPScript scripting tool.
• Added FIPS compliance problems self-test (see FAQ for details about FIPS compliance).
• Added Rijndael/AES block size validation and configuration.
• Added NotifyIcon workaround for Mono under Mac OS X.
• Added confirmation box for empty master passwords.
• Added radio buttons in auto-type sequence editing dialog to choose between the default entry sequence and a custom one.
• Added hint that group notes are shown in group tooltips.
• Added test for KeePass 1.x plugins and an appropriate error message.
• Added interface for writing master password requirements validation plugins.
• Key provider plugin API: enhanced key query method by a context information object.
• Key provider plugin API: added 'DirectKey' property to key provider base class that allows returning keys that are directly written to the user key data stream.
• Key provider plugin API: added support for exclusive plugins.
• The '-keyfile' command line option now supports selecting key providers (plugins).
• Auto-Type: added option to send an Alt keypress when only the Alt modifier is active (option enabled by default).
• Added warning when trying to use only Alt or Alt-Shift as global hot key modifier.
• TrlUtil: added search functionality and toolbar.
• TrlUtil: version is now shown in the window title.

Improvements / Changes:

• Improved database file versioning and changed KDBX file signature in order to prevent older versions from corrupting newer files.
• ShInstUtil now first tries to uninstall a previous native image before creating a new one.
• Improved file corruption error messages (instead of index out of array bounds exception text, ...).
• The 'Open in Browser' command now opens all selected entries instead of just the focused one.
• Data-editing commands in the 'Tools' menu in the entry dialog are now disabled when being in history viewing mode.
• Right arrow key now works correctly in group tree view.
• Entry list is now updated when selecting a group by pressing a A-Z, 0-9 or numpad key.
• Improved entry list performance and sorting behavior.
• Improved splitter distance remembering.
• Improved self-tests (KeePass now correctly terminates when a self-test fails).
• The attachment column in the main window now shows the names of the attached files instead of the attachments count.
• Double-clicking an attachment field in the main window now edits (if possible) or shows the first attachment of the entry.
• Group modification times are now updated after editing groups.
• Improved scrolling of the entry list in item grouping mode.
• Changed history view to show last modification times, titles and user names of history entries.
• KeePass now also automatically prompts to unlock when restoring to a maximized window.
• Improved file system root directory support.
• Improved generic CSV importer preview performance.
• When saving a file, its path is not remembered anymore, if the option for opening the recently used file at startup is disabled.
• Improved auto-type input blocking.
• Instead of a blank text, the entry dialog now shows "(Default)" if the default auto-type sequence is used in a window-sequence association.
• Most broadcasted Windows messages do not wait for hanging applications anymore.
• Improved main window hiding at startup when the options to minimize after opening a database and to tray are enabled.
• Default tray action is now dependent on mouse button.
• New entries can now inherit custom icons from their parent groups.
• Improved maximized state handling when exiting while the main window is minimized.
• Improved state updating in key creation form.
• Improved MRU list updating performance.
• Improved plugin incompatibility error message.
• Deprecated {DOCDIR}, use {DB_DIR} instead ({DOCDIR} is still supported for backward compatibility though).
• Last modification times of TAN entries are now updated.
• F12 cannot be registered as global hot key anymore, because it is reserved for kernel-mode / JIT debuggers.
• Improved auto-type statement conversion routine in KeePass 1.x KDB file importer.
• Improved column width calculation in file/data format dialog.
• Improved synchronization status bar messages.
• TrlUtil: base hash for forms is now computed using the form's client rectangle instead of its window size.
• Various code optimizations.
• Minor other improvements.

Bugfixes:

• Recycle bin is now cleared correctly when clearing the database.