OnArray.php: new function keyNameRemoveLeadingUnderscore().
Report: Introduce constant TOKEN_COLUMN_CTRL.
Config.php: Implement function 'checkDeprecated().
Store.php: Update StoreSystemUpdate() to handle up to 3 FILL_STORE_SYSTEM_SQL_x. Implement an optional error message together with a full stop.

DatabaseUpdateData.php: removed the DB update from last commit - not necessary.
Config.php: New default 'm'
Evaluate.php: Respect EscapeTypeDefault in form definition.
QuickFormQuery.php: Replace 'EscapeTypeDefault' in form defintion very early.

Bug #4731 / Dynamic Update: load(post) triggers 'check required' - makes no sense during filling a form - fixed

Implemented setting 'db_?_xxx' in config.qfq.ini and QuickFormQuery.php and other files. Open: saving in  DB_INDEX_QFQ.

* Broken Redirect after Save - fixed
* Broken same HTML ID for FE copies in a template group. - fixed

Bug #4548 /Template Group: 'form-update' broken - max tg element value/index shown after save instead of last user supplied value, but save is ok.
Neu wird nach dem Speichern das Formular nochmal komplett geladen. Das ist wichtig um die durch aftersave geaenderten Records in die Formularelemente zu bekommen.

#4456 / formModeGlobal=requiredOff - Switches FormElement.mode=required to 'show' for all FE of the current Form.

AbstractBuildFrom.php: Add new symbol 'show'. Honor switch between Edit and Show for subrecord elements.
QuickFormQuery.php: If F_MODE is not set, check if there is a SIP var with F_MODE_GLOBAL=F_MODE_READONLY

#4278 / Language: Check that language settings respect inside of container / pill / fieldset / templateGroup
HelperFormElement.php,AbstractBuildForm.php,BuildFormBootstrap.php,QuickFormQuery.php: function setLanguage() moved from QuickFormQuery.php to HelperFormElement.php

Check if Record is already exclusive locked. If yes, show Form in readonly mode.

Manual.rst: how to use the multi language forms.
DatabaseUpdateData.php: Update DB with new language fields.
HelperFormElement.php: modify explodeParameter() to not check already existing definitions.
QuickFormQuery.php: new setLanguage().

Check if Record is already exclusive locked. If yes, show Form in readonly mode.

save.php, QuickFormQuery.php: fixed malformed array for JSON
Dirty.js, QfqForm.js: replace instance variable 'additionalQueryparameters' against parameter by call: optionalQueryParameters.

Fixed broken implementation on server side.

modifiedRecord.pu: State Diagram
Dirty.php: implement $recordHashMd5 to detect modified records.
OnArray.php: new getMd5()
AbstractBuildForm.php: implemented but not working update of hidden input 'recordHashMd5'. Add hidden input 'recordHashMd5'.
BuildFormBootstrap:  Add hidden input 'recordHashMd5'.
formEditor.sql: Rename 'Dirty.recordModified' to 'Dirty.recordHashMd5'.

delete.php: process json answer of qfq-delete()
Dirty.php: More specific error message. In case of locking problem during form delete - return json and not an exception.
QuickFormDirty.php: Code cleanup. Interpret answer of dirty->checkDirtyAndRelease

Implemented: New > Close (save) now closes correctly the current page. Addtional, #1930 has been solved implizit.

AbstractBuildForm.php: Removed some unused comments. Bug fix: do htmlspecialchar_decode() always when FE_ENCODE is set to encodeSpecialchar.
QuickFormQuery.php: mv necessary systemStoreUpdate() closer to instantiating of classs Store.

Manual.rst: Doc update for periodId.
DatabaseUpdateData.php, formEditor.sql: Table 'Period' and sample record.
Store.php: Implement systemStoreUpdate()
QuickFormQuery.php: call to store->systemStoreUpdate() - might solved in a better way..

Dirty.php: workaround for #4127

DatabaseUpdateData.php: Table Form: recordLockTimeoutSeconds - default changed from 0 to 900 secs. Existing forms get the default timeout timout interval.
Dirty.php, QuickFormQuery.php: recordLockTimeoutSeconds will be retrieved from the Form.recordLockTimeoutSeconds definition (instead of parsing config.qfq.ini). Therefore a definition per form ist possible.

file.php, load.php, Html2Pdf.php: minor updates.
Dirty.php, QuickFormQuery.php: optional $lockTimeout as parameter during instantiating. Return $lockTimeout where necessary. Otherwise read qfq.config.ini. Refactor process(), acquireDirty(), checkDirtyAndRelease().

Dirty.php: record delete is handled - if lock exist, delete is not allowed.

Dirty.php, QuickFormQuery.php: Update user messages. Renamed releaseDirty() to checkDirtAndRelease()