Add MySQL, PostgreSQL, and SQLite3 support for database storage
Deprecate "use_sqlite_db" option and remove SQLite2/sqlite_* functions
Improve getCaptchaId/checkCaptchaById functions
Document new properties
Replace use_sqlite_db with use_database
Add note about usage
Add multi-word captcha codes
Move query out of conditional block
Release 3.2RC4
Merge changes from securimage-wp plugin.
Make display_value property public
Modify getCode() to optionally return an existing code
Make createCode public
Fix: file handle not closed explicitly in readCodeFromFile()
Add default sqlite3 database
Increase max input length
Remove old sqlite 2 database file
Correct link
Fix insertSilence creating invalid block size
Update changelog, release 1.0
Fix typo in comment and expand second comment
Use mb_substr for generating code when available
Move audio files to audio/en for better language integration
Move variables to top of script
Database connectivity tests and static captcha MySQL example
Release 3.5

Final changes to securimage.php for release