The server warns that TLSv1 or TLSv1.1 is still enabled and urges you to use TLSv1.2 or higher for secure connections.
ER_WARN_DEPRECATED_TLS_VERSION appears when MySQL detects TLSv1 or TLSv1.1 is enabled. Upgrade openssl libraries, set tls_version='TLSv1.2,TLSv1.3', restart MySQL, and reconnect with updated clients to clear the warning.
ER_WARN_DEPRECATED_TLS_VERSION
MySQL raises ER_WARN_DEPRECATED_TLS_VERSION at startup or during connection handshake when it finds that TLSv1 or TLSv1.1 is enabled on the server or requested by a client. The warning was introduced in MySQL 5.7.35 to help administrators deprecate weak encryption.
The message does not block connections, but it signals that your deployment fails modern security standards and may soon break when older protocols are removed entirely. Addressing it promptly ensures compliance with PCI DSS, HIPAA, and company security policies.
The tls_version system variable still lists TLSv1 or TLSv1.1 after an upgrade, so the server starts with insecure protocols enabled and logs the warning.
Legacy applications or drivers request outdated TLS versions, forcing DBAs to keep them enabled and triggering the warning on every connection.
An old OpenSSL or yaSSL library used to compile MySQL only supports TLSv1, leaving the server unable to negotiate newer protocols.
First, confirm the active protocols with SHOW VARIABLES LIKE 'tls_version';. If TLSv1 or TLSv1.1 appear, remove them.
Edit my.cnf or my.ini and set tls_version = TLSv1.2,TLSv1.3. This restricts the server to secure protocols only.
Restart MySQL to apply the configuration. Verify the change with the same SHOW VARIABLES command and ensure the warning no longer appears in the error log.
After an in-place upgrade from 5.6 to 8.0, inherited configuration keeps deprecated protocols. Update tls_version and roll out a new JDBC driver that speaks TLSv1.2.
Container images built on Debian Stretch ship with an old OpenSSL library. Rebuild the image on Debian Bullseye or Alpine 3.18 where OpenSSL 1.1.1 or 3.x is available.
Always pin tls_version = TLSv1.2,TLSv1.3 in configuration management templates so future upgrades cannot re-enable weak ciphers.
Automate SSL/TLS scanning in CI pipelines to catch deprecated protocols before code or infra reach production.
Use Galaxy’s AI copilot to review my.cnf snippets and flag insecure TLS settings during pull-request reviews.
ER_WARN_DEPRECATED_SYNTAX warns about other obsolete features; fix by upgrading SQL syntax. ER_SSL_CONNECTION_ERROR indicates a failed TLS handshake; check certificates. ER_HANDSHAKE_ERROR arises when the client and server cannot agree on protocol; update drivers.
The tls_version variable still includes TLSv1 or TLSv1.1, inherited from earlier MySQL versions.
Old applications request deprecated protocols, forcing administrators to keep them available.
System OpenSSL versions lack TLSv1.2 support, limiting what MySQL can advertise.
After upgrading MySQL, default configs were not reviewed, leaving insecure settings intact.
Warns that a SQL feature is outdated. Update your queries to supported syntax.
Occurs when the TLS handshake fails due to certificate or protocol mismatch.
Indicates that the initial client-server handshake failed. Can be caused by protocol incompatibility.
Signals that a user lacks required privileges, sometimes appearing after TLS changes tighten security.
No, it is a warning, but ignoring it leaves your server on insecure protocols and may block connections in future releases.
require_secure_transport enforces encrypted connections but does not disable TLSv1 or TLSv1.1. You must also adjust tls_version.
You can use SET GLOBAL tls_version, but clients must reconnect to pick up the new protocols. A restart guarantees all threads reload the setting.
Galaxy’s editor highlights insecure TLS settings, and its AI copilot suggests the correct tls_version directive before you deploy.
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