| Version | No. of Bacterial genomes | No. of Bacterial chrs | No. of Archaeal genomes | No. of Archaeal chrs | No. of total entries | Update on |
|---|---|---|---|---|---|---|
| 1 | 303 | 329 | 0 | 0 | 398 | 2006-04-18 |
| 1.1 | 325 | 354 | 0 | 0 | 427 | 2006-06-25 |
| 1.2 | 345 | 374 | 0 | 0 | 447 | 2006-09-12 |
| 1.3 | 353 | 382 | 0 | 0 | 456 | 2006-09-27 |
| 1.3.2 | 353 | 382 | 0 | 0 | 456 | 2006-10-05 |
| 1.4 | 371 | 405 | 0 | 0 | 483 | 2006-10-26 |
| 1.5 | 378 | 414 | 0 | 0 | 494 | 2006-11-10 |
| 1.5.2 | 378 | 414 | 0 | 0 | 494 | 2006-11-15 |
| 1.5.5 | 381 | 417 | 0 | 0 | 498 | 2006-11-16 |
| 1.6 | 393 | 430 | 0 | 0 | 516 | 2006-12-22 |
| 1.7 | 413 | 451 | 0 | 0 | 543 | 2007-01-19 |
| 1.8 | 435 | 478 | 0 | 0 | 574 | 2007-03-18 |
| 1.9 | 483 | 530 | 0 | 0 | 640 | 2007-06-16 |
| 2 | 520 | 568 | 0 | 0 | 688 | 2007-08-14 |
| 2.2 | 578 | 632 | 0 | 0 | 755 | 2008-01-28 |
| 2.3 | 627 | 686 | 0 | 0 | 823 | 2008-05-22 |
| 2.5 | 705 | 770 | 0 | 0 | 920 | 2008-10-31 |
| 2.7 | 807 | 879 | 0 | 0 | 1062 | 2009-05-10 |
| 3 | 1040 | 1114 | 0 | 0 | 1369 | 2010-08-18 |
| 4 | 1345 | 1440 | 0 | 0 | 1766 | 2011-09-07 |
| 5 | 1528 | 1633 | 81 | 86 | 2135 | 2012-07-25 |
| 6 | 2077 | 2197 | 81 | 86 | 2854 | 2013-02-25 |
| 6.5 | 2077 | 2197 | 101 | 104 | 2958 | 2013-04-06 |
| 7 | 2707 | 2740 | 101 | 104 | 3680 | 2017-09-15 |
| 8 | 2707 | 2740 | 193 | 226 | 3806 | 2018-05-15 |
| 9 | 6508 | 6904 | 193 | 226 | 9213 | 2018-06-12 |
| 10 | 7347 | 7508 | 193 | 226 | 11137 | 2018-09-14 |