diff --git a/.github/workflows/ppa-upload.yml b/.github/workflows/ppa-upload.yml
index d8189f206e3..6419d58f2f1 100644
--- a/.github/workflows/ppa-upload.yml
+++ b/.github/workflows/ppa-upload.yml
@@ -14,7 +14,6 @@ jobs:
       fail-fast: true
       matrix:
         release:
-        - "23.10"
         - "24.04"
         - "devel"
 
diff --git a/.github/workflows/spread.yml b/.github/workflows/spread.yml
index fd9d8fdb772..4db3a47ddd0 100644
--- a/.github/workflows/spread.yml
+++ b/.github/workflows/spread.yml
@@ -41,7 +41,6 @@ jobs:
                 "lxd:alpine-edge:spread/build/alpine:amd64"
                 "lxd:ubuntu-24.04:spread/build/sbuild:debian_sid"
                 "lxd:ubuntu-24.04:spread/build/sbuild:ubuntu"
-                "lxd:ubuntu-24.04:spread/build/sbuild:ubuntu_mantic"
                 "lxd:ubuntu-24.04:spread/build/sbuild:ubuntu_arm64"
                 "lxd:ubuntu-24.04:spread/build/sbuild:ubuntu_armhf"
                 "lxd:ubuntu-24.04:spread/build/ubuntu:clang"
diff --git a/spread.yaml b/spread.yaml
index df36d25ccdb..a7334dbc4d5 100644
--- a/spread.yaml
+++ b/spread.yaml
@@ -22,7 +22,6 @@ environment:
     DISTRO/debian_sid: debian
     RELEASE: noble
     RELEASE/ubuntu: noble
-    RELEASE/ubuntu_mantic: mantic
     RELEASE/ubuntu_devel: oracular
     RELEASE/debian_sid: sid
     PROPOSED: false