The human IG reference sets on OGRDB have been updated and carry new versions, but no coding sequences are affected. The updates add longer gene sequences for many light-chain alleles, allowing better characterisation of leader and RSS. Delineations of CDRs and other features have been reviewed and fixed in some cases. The changes made are trackable through the History tab for germline sets and individual sequences. Gapped and ungapped sequences downloaded from OGRDB have not been changed.