Done in https://github.com/glpi-project/glpi/pull/13563
Should be part of 10.0.6 release

Please use https://github.com/glpi-project/glpi/issues/new/choose for bug reporting

Work in progress in https://github.com/glpi-project/glpi/pull/11304

Done in GLPI 10

CSV export of historical tab is now available in GLPI 10

Done in GLPI 10

Done in GLPI 10