diff --git a/conference/DS/ats.yml b/conference/DS/ats.yml
new file mode 100644
index 000000000..b4c8f2aa8
--- /dev/null
+++ b/conference/DS/ats.yml
@@ -0,0 +1,17 @@
+- title: ATS
+  description: IEEE Asian Test Symposium
+  sub: DS
+  rank:
+    ccf: C
+    core: N
+    thcpl: N
+  dblp: ats
+  confs:
+    - year: 2026
+      id: ats2026
+      link: https://www.ats2026.tw/
+      timeline:
+        - deadline: '2026-06-06 23:59:59'
+      timezone: UTC+8
+      date: December 1-3, 2026
+      place: Taiwan
diff --git a/conference/DS/ets.yml b/conference/DS/ets.yml
index 54060c97a..332b9ad3f 100644
--- a/conference/DS/ets.yml
+++ b/conference/DS/ets.yml
@@ -3,7 +3,7 @@
   sub: DS
   rank:
     ccf: C
-    core: N
+    core: B
     thcpl: N
   dblp: ets
   confs:
@@ -16,3 +16,21 @@
       timezone: AoE
       date: May 20-24, 2024
       place: The Hague, Netherlands
+    - year: 2025
+      id: ets2025
+      link: https://ets2025.taltech.ee/
+      timeline:
+        - abstract_deadline: '2024-12-09 23:59:59'
+          deadline: '2024-12-15 23:59:59'
+      timezone: AoE
+      date: May 26-30, 2025
+      place: Tallinn, Estonia
+    - year: 2026
+      id: ets2026
+      link: https://ets2026.uniwa.gr/
+      timeline:
+        - abstract_deadline: '2025-12-15 23:59:59'
+          deadline: '2026-01-12 23:59:59'
+      timezone: AoE
+      date: May 25-29, 2026
+      place: Chania, Greec
diff --git a/conference/DS/hotstorage.yml b/conference/DS/hotstorage.yml
new file mode 100644
index 000000000..f4bc6bdca
--- /dev/null
+++ b/conference/DS/hotstorage.yml
@@ -0,0 +1,17 @@
+- title: HotStorage
+  description: ACM Workshop on Hot Topics in Storage and File Systems
+  sub: DS
+  rank:
+    ccf: C
+    core: N
+    thcpl: N
+  dblp: hotstorage
+  confs:
+    - year: 2026
+      id: hotstorage2026
+      link: https://www.hotstorage.org/2026/
+      timeline:
+        - deadline: '2026-06-05 23:59:59'
+      timezone: AoE
+      date: September 28-29, 2026
+      place: Prague, Czechia
diff --git a/conference/DS/sec.yml b/conference/DS/sec.yml
new file mode 100644
index 000000000..8dc3d2331
--- /dev/null
+++ b/conference/DS/sec.yml
@@ -0,0 +1,18 @@
+- title: SEC
+  description: ACM/IEEE Symposium on Edge Computing
+  sub: DS
+  rank:
+    ccf: C
+    core: N
+    thcpl: N
+  dblp: ieeesec
+  confs:
+    - year: 2026
+      id: sec2026
+      link: https://acm-ieee-sec.org/2026/
+      timeline:
+        - abstract_deadline: '2026-04-24 23:59:59'
+          deadline: '2026-05-01 23:59:59'
+      timezone: AoE
+      date: Oct 13-16, 2026
+      place: Santa Clara University, CA, USA