Most important News CMSimple 5.17 => 5.18 (2025-03-04):

    The pluginoader has been revised; it caused php warnings in debug mode.
    .avif image files are supported by filebrowser
    .avif image files are allowed in CMS Configuration

Most important News CMSimple 5.16 => 5.17 (2025-02-17):

    favicon.png and favicon.gif possible
    jQuery optimized and configured accordingly
    for updates from old versions: if no log.php => copy from setup folder
    new functions opendiv() and closediv() for compatibility with CMSimple Basic
    function li() extended for function expToc() (opened menu)
	
Most important News CMSimple 5.15 => 5.16 (2024-07-22):

    Login revised
    Bugfix Pluginloader index.php (in case no plugin is installed)
    Mail form improved: From:, Reply-To:, mailbody
    Filebrowser: Linklist for dialog "internal links" in Editorbrowser improved
    New functions from CMSimple Basic added (for compatibility)
    p: and f: possible for function calls (instead of plugin: and function:)
    fatal error with link button in Editorbrowser fixed
    "cmsimpleDataFileStored" renamed 3x to "cmsimpleDataStored" due to possible ModSecurity conflict

Most important News CMSimple 5.14 => 5.15 (2024-03-25):

    The drag&drop functionality of the pagemanager has been significantly improved
    ./cmsimple/defaultconfig.php: $cf['use']['h1only_pagesplitting'] empty again, is better when converting contents of old versions
    The routine for switching to h1only pagesplitting has been improved.

Most important News CMSimple 5.12 => 5.14 (2024-01-04):

Most referencing now no longer occurs from the domain root, but relatively from the site root ($sn replaced by ./).

    Image format .webp added to allowed filetypes
    CSRF protection disabled by default
    h1only_pagesplitting now activated also in defaultconfig.php
    meta_tags and page_params design independent of the template
    Fixed CMSimpleDebug.txt copy bug for updating the CoAuthors page
    CoAuthors plugin: updated to 3.0
    Filebrowser admin.php: XHFB_PATH => CMSIMPLE_FB_PATH
    ./2author, ./2lang, ./2site, ./2site2lang: in setup.php $setup_timeOut increased to 600s (syncronised with login.php)
    _cmsimpleAdmin.php and _disabled_plugins.txt moved to folder ./content/
    readme.php replaced by README.txt and README.txt
    Standard template slightly revised
    Standard content (content.php and pagedata.php) revised, also in the folders ./2author, ./2lang, ./2site, ./2site2lang