diff --git a/lineage_notes.txt b/lineage_notes.txt
index addf69b0..08b36aee 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -2823,7 +2823,8 @@ FL.17.2	Alias of XBB.1.9.1.17.2, S:L452R, ORF7a:V104L, from sars-cov-2-variants/
 FL.18	Alias of XBB.1.9.1.18, ORF1a:T2007I
 FL.18.1	Alias of XBB.1.9.1.18.1, N:T166I, A27507C, from #2019
 FL.18.1.1	Alias of XBB.1.9.1.18.1.1, S:Y200C, S:478R, Australia/Indonesia
-FL.19	Alias of XBB.1.9.1.18, T2377C
+FL.19	Alias of XBB.1.9.1.19, T2377C
+FL.20	Alias of XBB.1.9.1.20, S:F456L (22928C), S:Q52H, Spain, from #2072
 XBB.1.9.2	S:F486P (after 27507C, 16878T), Indonesia/Singapore
 EG.1	Alias of XBB.1.9.2.1, S:Q613H on N:L219F branch, from #1664 and https://github.com/jmcbroome/auto-pango-designation/pull/193
 EG.1.1	Alias of XBB.1.9.2.1.1, S:V70F and ORF1a:T403I, Luxembourg/Belgium/France
diff --git a/lineages.csv b/lineages.csv
index 7be4de51..fbd03d79 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2428705,3 +2428705,29 @@ Greece/2952/2023,BQ.1.1.79
 Greece/NPHO-4023/2023,BQ.1.1.79
 Greece/NPHO-4781/2023,BQ.1.1.79
 Greece/NPHO-4822/2023,BQ.1.1.79
+Scotland/SCOT-31511/2023,FL.20
+Spain/AN-PMC-35115/2023,FL.20
+Puerto_Rico/PR-PRPHL-MB0489/2023,FL.20
+Puerto_Rico/PR-PRPHL-MB0490/2023,FL.20
+USA/CA-GBW-H10-014-5072/2023,FL.20
+Finland/THL-05242/2023,FL.20
+PuertoRico/PR-PRPHL-MB0490/2023,FL.20
+PuertoRico/PR-PRPHL-MB0489/2023,FL.20
+Austria/AGES-1140063/2023,FL.20
+Austria/AGES-1140064/2023,FL.20
+England/PHEC-YYE54R9/2023,FL.20
+Ireland/G-GUH-N1349/2023,FL.20
+Austria/AGES-1140399/2023,FL.20
+Spain/PV-HUB-56015539/2023,FL.20
+Austria/AGES-1140072/2023,FL.20
+Spain/EX-BA_18583106/2023,FL.20
+USA/NJ-CDC-QDX81183386/2023,FL.20
+England/PHEC-YYE5MGK/2023,FL.20
+CHN/SH-HG20230619-2121/2023,FL.20
+Shanghai/SCDC-HG0619-2121/2023,FL.20
+France/ARA-HCL-723000824601/2023,FL.20
+Canada/BC-BCCDC-632716/2023,FL.20
+Canada/AB-ABPHL-99129/2023,FL.20
+Canada/AB-ABPHL-98937/2023,FL.20
+England/PHEC-YYE5TBQ/2023,FL.20
+England/BRBR-3271AE81/2023,FL.20