Update releases.yml

Author: jhlodin

src/current/_data/versions.csv

@@ -22,4 +22,4 @@ v25.3,2025-08-04,2026-02-04,N/A,N/A,N/A,N/A,N/A,N/A,v25.2,release-25.3,2029-08-0
 v25.4,2025-11-03,2026-11-03,2027-05-03,25.4.9,25.4.10,2026-05-03,2027-05-03,2028-05-03,v25.3,release-25.4,2029-11-03
 v26.1,2026-02-02,2026-08-02,N/A,N/A,N/A,N/A,N/A,N/A,v25.4,release-26.1,2030-02-02
 v26.2,2026-04-27,2027-04-27,2027-10-27,N/A,N/A,N/A,N/A,N/A,v26.1,release-26.2,2030-04-27
-v26.3,N/A,N/A,N/A,N/A,N/A,N/A,N/A,N/A,v26.2,release-26.3,N/A
+v26.3,2026-08-19,2027-02-19,N/A,N/A,N/A,N/A,N/A,N/A,v26.2,release-26.3,2030-08-19