diff --git a/lineage_notes.txt b/lineage_notes.txt
index 5e244109..eeb2fa48 100644
--- a/lineage_notes.txt
+++ b/lineage_notes.txt
@@ -3277,6 +3277,7 @@ FY.4.1.1	Alias of XBB.1.22.1.4.1.1, S:S704L, from https://github.com/sars-cov-2-
 FY.4.1.2	Alias of XBB.1.22.1.4.1.2, ORF1a:S2926F, Kenya
 FY.4.2	Alias of XBB.1.22.1.4.2, ORF1a:Y2171F, ORF1b:V2287I, Kenya/USA/Japan, from sars-cov-2-variants/lineage-proposals#487
 FY.5	Alias of XBB.1.22.1.5, S:478R, Indonesia, from #1965
+FY.5.1	Alias of XBB.1.22.1.5.1, S:T572I
 FY.6	Alias of XBB.1.22.1.6, ORF1a:A591V
 FY.6.1	Alias of XBB.1.22.1.6.1, S:S939F, Japan
 FY.6.2	Alias of XBB.1.22.1.6.2, ORF1a:A3143V, ins_S:216:SLQGN, Japan
diff --git a/lineages.csv b/lineages.csv
index 446c38db..b9d4a583 100644
--- a/lineages.csv
+++ b/lineages.csv
@@ -2479011,3 +2479011,25 @@ USA/NV-SNPHL-776626/2023,FY.1.4.1
 USA/NMDOH-2023035158/2023,FY.1.4.1
 USA/NY-CDC-QDX84910966/2023,FY.1.4.1
 USA/CA-HLX-STM-ANWYJRK5U/2023,FY.1.4.1
+Canada/AB-ABPHL-103872/2023,FY.5.1
+USA/NY-GBW-H10-016-3654/2023,FY.5.1
+USA/NY-GBW-H10-016-3708/2023,FY.5.1
+Canada/ON-PHL-23-33179/2023,FY.5.1
+USA/CA-CDC-QDX84335895/2023,FY.5.1
+England/CLIMB-CM7YFX8A/2023,FY.5.1
+Denmark/DCGC-659336/2023,FY.5.1
+USA/CA-HLX-STM-5QVCGXHTN/2023,FY.5.1
+USA/CA-HLX-STM-VG2UP73C9/2023,FY.5.1
+NewZealand/ESR-YA4631/2023,FY.5.1
+England/CLIMB-CM7YGHFF/2023,FY.5.1
+England/CLIMB-CM7YRXNA/2023,FY.5.1
+England/CLIMB-CM7YF8TU/2023,FY.5.1
+Germany/TH-RKI-I-1138321/2023,FY.5.1
+England/CLIMB-CM7Y814A/2023,FY.5.1
+Singapore/R67MR90/2023,FY.5.1
+Slovenia/17910/2023,FY.5.1
+Slovenia/18041/2023,FY.5.1
+Wales/CLIMB-CM7YGRMO/2023,FY.5.1
+England/CLIMB-CM7YR1IH/2023,FY.5.1
+England/CLIMB-CM7YR1KE/2023,FY.5.1
+England/CLIMB-CM7YFWD6/2023,FY.5.1