See the satellite data version history.
The data of old versions are not available at WDCGG.

Updated Date	WDCGG Version * : the latest version	Satellite	Gas Species	Buffer	Organization	Original Data Version	Data period	Gallery/Metadata
2022-05-19	0149-9011-1001-08-08-9999 -2022-05-11-1445*	OCO-2	CO2	data1	NASAJPLCaltech (NASA Jet Propulsion Laboratory, California Institute of Technology )	OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V10r	2014-09-06 - 2022-02-28	view
2022-03-30	0149-9011-1001-08-08-9999 -2022-03-18-1648	OCO-2	CO2	data1	NASAJPLCaltech (NASA Jet Propulsion Laboratory, California Institute of Technology )	OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V10r	2014-09-06 - 2021-12-31
2022-01-20	0149-9011-1001-08-08-9999 -2022-01-06-1614	OCO-2	CO2	data1	NASAJPLCaltech (NASA Jet Propulsion Laboratory, California Institute of Technology )	OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V10r	2014-09-06 - 2021-10-31
2021-09-15	0149-9011-1001-08-08-9999 -2021-09-03-0805	OCO-2	CO2	data1	NASAJPLCaltech (NASA Jet Propulsion Laboratory, California Institute of Technology )	OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V10r	2014-09-06 - 2021-06-30
2021-05-18	0149-9011-1001-08-08-9999 -2021-05-18-0805	OCO-2	CO2	data1	NASAJPLCaltech (NASA Jet Propulsion Laboratory, California Institute of Technology )	OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V10r	2014-09-06 - 2020-12-31
2020-03-30	0149-9011-1001-08-08-9999 -2020-03-23-1132	OCO-2	CO2	data1	NASAJPLCaltech (NASA Jet Propulsion Laboratory, California Institute of Technology )	OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V9r	2014-09-06 - 2020-01-21