I run an up-to-date Debian Trixie version 13.3. With each update I perform I see the following errors that have been showing for months:
# apt-get update
Hit:1 http://deb.debian.org/debian trixie InRelease
Get:2 http://security.debian.org/debian-security trixie-security InRelease [43.4 kB]
Get:3 http://deb.debian.org/debian trixie-updates InRelease [47.3 kB]
Get:4 http://security.debian.org/debian-security trixie-security/main Sources [135 kB]
Get:5 https://brave-browser-apt-release.s3.brave.com stable InRelease [7,547 B]
Get:6 https://brave-browser-apt-release.s3.brave.com stable/main amd64 Packages [27.3 kB]
Get:7 http://security.debian.org/debian-security trixie-security/main i386 Packages [99.8 kB]
Get:8 https://brave-browser-apt-release.s3.brave.com stable/main arm64 Packages [27.2 kB]
Get:9 http://security.debian.org/debian-security trixie-security/main amd64 Packages [110 kB]
Hit:10 https://repo.nextdns.io/deb stable InRelease
Get:11 http://security.debian.org/debian-security trixie-security/main Translation-en [71.5 kB]
Hit:12 https://download.sublimetext.com apt/stable/ InRelease
Err:12 https://download.sublimetext.com apt/stable/ InRelease
Sub-process /usr/bin/sqv returned an error code (1), error message is: Signing key on 1EDDE2CDFC025D17F6DA9EC0ADAE6AD28A8F901A is not bound: primary key because: No binding signature at time 2026-01-05T04:51:18Z because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance because: SHA1 is not considered secure since 2026-02-01T00:00:00Z Missing key EBC733B78AAB352DC773BF857FE2FA12CF6E38F2, which is needed to verify signature.
Fetched 569 kB in 10s (55.7 kB/s)
Reading package lists... Done
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. OpenPGP signature verification failed: https://download.sublimetext.com apt/stable/ InRelease: Sub-process /usr/bin/sqv returned an error code (1), error message is: Signing key on 1EDDE2CDFC025D17F6DA9EC0ADAE6AD28A8F901A is not bound: primary key because: No binding signature at time 2026-01-05T04:51:18Z because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance because: SHA1 is not considered secure since 2026-02-01T00:00:00Z Missing key EBC733B78AAB352DC773BF857FE2FA12CF6E38F2, which is needed to verify signature.
W: Failed to fetch https://download.sublimetext.com/apt/stable/InRelease Sub-process /usr/bin/sqv returned an error code (1), error message is: Signing key on 1EDDE2CDFC025D17F6DA9EC0ADAE6AD28A8F901A is not bound: primary key because: No binding signature at time 2026-01-05T04:51:18Z because: Policy rejected non-revocation signature (PositiveCertification) requiring second pre-image resistance because: SHA1 is not considered secure since 2026-02-01T00:00:00Z Missing key EBC733B78AAB352DC773BF857FE2FA12CF6E38F2, which is needed to verify signature.
W: Some index files failed to download. They have been ignored, or old ones used instead.
# cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 13 (trixie)"
NAME="Debian GNU/Linux"
VERSION_ID="13"
VERSION="13 (trixie)"
VERSION_CODENAME=trixie
DEBIAN_VERSION_FULL=13.3
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"