cat /etc/apt/sources.list /etc/apt/sources.list.d/*
deb
http://ftp.de.debian.org/debian bullseye-updates main contrib
# security updates
deb
http://security.debian.org bullseye-security main contrib
deb
http://download.proxmox.com/debian/pve bullseye pve-no-subscription
# deb
http://downloads.linux.hpe.com/SDR/repo/mcp stretch/current non-free
#deb
https://enterprise.proxmox.com/debian/pve buster pve-enterprise
deb
https://enterprise.proxmox.com/debian/pve bullseye pve-enterprise
-----------------------------------------------------------------------------------------------------------------------
root@pve:/var/lib/apt/lists# apt update && apt list --upgradable
Hit:1
http://security.debian.org bullseye-security InRelease
Hit:2
http://download.proxmox.com/debian/pve bullseye InRelease
Hit:3
http://ftp.de.debian.org/debian bullseye InRelease
Hit:4
http://ftp.de.debian.org/debian bullseye-updates InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
68 packages can be upgraded. Run 'apt list --upgradable' to see them.
Listing... Done
base-files/stable 11.1+deb11u6 amd64 [upgradable from: 11.1+deb11u5]
bind9-dnsutils/stable-security 1:9.16.37-1~deb11u1 amd64 [upgradable from: 1:9.16.33-1~deb11u1]
bind9-host/stable-security 1:9.16.37-1~deb11u1 amd64 [upgradable from: 1:9.16.33-1~deb11u1]
bind9-libs/stable-security 1:9.16.37-1~deb11u1 amd64 [upgradable from: 1:9.16.33-1~deb11u1]
curl/stable-security 7.74.0-1.3+deb11u5 amd64 [upgradable from: 7.74.0-1.3+deb11u3]
distro-info-data/stable 0.51+deb11u3 all [upgradable from: 0.51+deb11u2]
dnsutils/stable-security 1:9.16.37-1~deb11u1 all [upgradable from: 1:9.16.33-1~deb11u1]
git-man/stable-security 1:2.30.2-1+deb11u2 all [upgradable from: 1:2.30.2-1]
git/stable-security 1:2.30.2-1+deb11u2 amd64 [upgradable from: 1:2.30.2-1]
gnutls-bin/stable-security 3.7.1-5+deb11u3 amd64 [upgradable from: 3.7.1-5+deb11u2]
grub-common/stable 2.06-3~deb11u5 amd64 [upgradable from: 2.06-3~deb11u4]
grub-efi-amd64-bin/stable 2.06-3~deb11u5 amd64 [upgradable from: 2.06-3~deb11u4]
grub-efi-ia32-bin/stable 2.06-3~deb11u5 amd64 [upgradable from: 2.06-3~deb11u4]
grub-pc-bin/stable 2.06-3~deb11u5 amd64 [upgradable from: 2.06-3~deb11u4]
grub-pc/stable 2.06-3~deb11u5 amd64 [upgradable from: 2.06-3~deb11u4]
grub2-common/stable 2.06-3~deb11u5 amd64 [upgradable from: 2.06-3~deb11u4]
imagemagick-6-common/stable-security 8:6.9.11.60+dfsg-1.3+deb11u1 all [upgradable from: 8:6.9.11.60+dfsg-1.3]
libcurl3-gnutls/stable-security 7.74.0-1.3+deb11u5 amd64 [upgradable from: 7.74.0-1.3+deb11u3]
libcurl4/stable-security 7.74.0-1.3+deb11u5 amd64 [upgradable from: 7.74.0-1.3+deb11u3]
libde265-0/stable-security 1.0.11-0+deb11u1 amd64 [upgradable from: 1.0.8-1]
libgnutls-dane0/stable-security 3.7.1-5+deb11u3 amd64 [upgradable from: 3.7.1-5+deb11u2]
libgnutls30/stable-security 3.7.1-5+deb11u3 amd64 [upgradable from: 3.7.1-5+deb11u2]
libgnutlsxx28/stable-security 3.7.1-5+deb11u3 amd64 [upgradable from: 3.7.1-5+deb11u2]
libksba8/stable-security 1.5.0-3+deb11u2 amd64 [upgradable from: 1.5.0-3+deb11u1]
libmagickcore-6.q16-6/stable-security 8:6.9.11.60+dfsg-1.3+deb11u1 amd64 [upgradable from: 8:6.9.11.60+dfsg-1.3]
libmagickwand-6.q16-6/stable-security 8:6.9.11.60+dfsg-1.3+deb11u1 amd64 [upgradable from: 8:6.9.11.60+dfsg-1.3]
libnss3/stable-security 2:3.61-1+deb11u3 amd64 [upgradable from: 2:3.61-1+deb11u2]
libnvpair3linux/stable 2.1.9-pve1 amd64 [upgradable from: 2.1.6-pve1]
libproxmox-acme-perl/stable 1.4.3 all [upgradable from: 1.4.2]
libproxmox-acme-plugins/stable 1.4.3 all [upgradable from: 1.4.2]
libpve-access-control/stable 7.3-1 all [upgradable from: 7.2-5]
libpve-cluster-api-perl/stable 7.3-2 all [upgradable from: 7.3-1]
libpve-cluster-perl/stable 7.3-2 all [upgradable from: 7.3-1]
libpve-common-perl/stable 7.3-2 all [upgradable from: 7.3-1]
libpve-storage-perl/stable 7.3-2 all [upgradable from: 7.3-1]
libssl1.1/stable-security 1.1.1n-0+deb11u4 amd64 [upgradable from: 1.1.1n-0+deb11u3]
libtasn1-6/stable 4.16.0-2+deb11u1 amd64 [upgradable from: 4.16.0-2]
libtiff5/stable-security 4.2.0-1+deb11u4 amd64 [upgradable from: 4.2.0-1+deb11u1]
libuutil3linux/stable 2.1.9-pve1 amd64 [upgradable from: 2.1.6-pve1]
libvirglrenderer1/stable 0.8.2-5+deb11u1 amd64 [upgradable from: 0.8.2-5]
libzfs4linux/stable 2.1.9-pve1 amd64 [upgradable from: 2.1.6-pve1]
libzpool5linux/stable 2.1.9-pve1 amd64 [upgradable from: 2.1.6-pve1]
linux-image-amd64/stable-security 5.10.162-1 amd64 [upgradable from: 5.10.149-2]
linux-libc-dev/stable-security 5.10.162-1 amd64 [upgradable from: 5.10.149-2]
lxc-pve/stable 5.0.2-1 amd64 [upgradable from: 5.0.0-3]
lxcfs/stable 5.0.3-pve1 amd64 [upgradable from: 4.0.12-pve1]
mutt/stable 2.0.5-4.1+deb11u2 amd64 [upgradable from: 2.0.5-4.1+deb11u1]
nano/stable 5.4-2+deb11u2 amd64 [upgradable from: 5.4-2+deb11u1]
openssl/stable-security 1.1.1n-0+deb11u4 amd64 [upgradable from: 1.1.1n-0+deb11u3]
postfix/stable 3.5.17-0+deb11u1 amd64 [upgradable from: 3.5.13-0+deb11u1]
proxmox-archive-keyring/stable 2.2 all [upgradable from: 2.1]
proxmox-backup-client/stable 2.3.3-1 amd64 [upgradable from: 2.2.7-1]
proxmox-backup-file-restore/stable 2.3.3-1 amd64 [upgradable from: 2.2.7-1]
proxmox-mail-forward/stable 0.1.1-1 amd64 [upgradable from: 0.1.0-1]
proxmox-offline-mirror-docs/stable 0.5.1-1 all [upgradable from: 0.5.0-1]
proxmox-offline-mirror-helper/stable 0.5.1-1 amd64 [upgradable from: 0.5.0-1]
proxmox-widget-toolkit/stable 3.5.5 all [upgradable from: 3.5.3]
pve-cluster/stable 7.3-2 amd64 [upgradable from: 7.3-1]
pve-firmware/stable 3.6-3 all [upgradable from: 3.5-6]
pve-i18n/stable 2.8-2 all [upgradable from: 2.8-1]
pve-kernel-5.15/stable 7.3-2 all [upgradable from: 7.2-14]
pve-kernel-helper/stable 7.3-4 all [upgradable from: 7.2-14]
pve-manager/stable 7.3-6 amd64 [upgradable from: 7.3-3]
qemu-server/stable 7.3-3 amd64 [upgradable from: 7.3-1]
spl/stable 2.1.9-pve1 all [upgradable from: 2.1.6-pve1]
zfs-initramfs/stable 2.1.9-pve1 all [upgradable from: 2.1.6-pve1]
zfs-zed/stable 2.1.9-pve1 amd64 [upgradable from: 2.1.6-pve1]
zfsutils-linux/stable 2.1.9-pve1 amd64 [upgradable from: 2.1.6-pve1]
Danke!