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      • Release notes index
      • Percona Server for MySQL 8.0.33-25 Update (2023-08-02)
      • Percona Server for MySQL 8.0.33-25 (2023-06-15)
      • Percona Server for MySQL 8.0.32-24 (2023-03-20)
      • Percona Server for MySQL 8.0.31-23 (2023-02-09)
        • Percona Server for MySQL 8.0.30-22 Update (2022-11-21)
        • Percona Server for MySQL 8.0.30-22 (2022-11-21)
        • Percona Server for MySQL 8.0.29-21 (2022-08-08)
        • Percona Server for MySQL 8.0.28-20 (2022-06-20)
        • Percona Server for MySQL 8.0.28-19 (2022-05-12)
        • Percona Server for MySQL 8.0.27-18 (2022-03-02)
        • Percona Server for MySQL 8.0.26-17 (2022-01-26)
        • Percona Server for MySQL 8.0.26-16 (2021-10-20)
        • Percona Server for MySQL 8.0.25-15 (2021-07-13)
        • Percona Server for MySQL 8.0.23-14 (2021-05-12)
        • Percona Server for MySQL 8.0.22-13 (2020-12-14)
        • Percona Server for MySQL 8.0.21-12 (2020-10-13)
        • Percona Server for MySQL 8.0.20-11 (2020-07-21)
        • Percona Server for MySQL 8.0.19-10 (2020-03-23)
        • Percona Server for MySQL 8.0.18-9
        • Percona Server for MySQL 8.0.17-8
        • Percona Server for MySQL 8.0.16-7
        • Percona Server for MySQL 8.0.15-6
        • Percona Server for MySQL 8.0.15-5
        • Percona Server for MySQL 8.0.14
        • Percona Server for MySQL 8.0.13-4
        • Percona Server for MySQL 8.0.13-3
        • Percona Server for MySQL 8.0.12-2rc1
      • Limiting the disk space used by binary log files
      • Extended mysqlbinlog
      • Slow query log rotation and expiration
      • Extended SELECT INTO OUTFILE/DUMPFILE
      • Support for PROXY protocol
      • SEQUENCE_TABLE(n) function
      • Trigger updates
      • Expanded fast index creation
      • Kill idle transactions
      • Percona Toolkit UDFs
      • Utility user
      • The ProcFS plugin
      • Adaptive network buffers
      • Thread pool
      • Quickstart guide for Percona Server for MySQL
      • Install Percona Server for MySQL from repositories
        • Use APT repositories
        • Files in DEB package
        • Build APT packages
        • Downloaded DEB packages
        • Apt pinning
        • Run Percona Server for MySQL
        • Uninstall
        • Use RPM repositories
        • Files in RPM package
        • Downloaded RPM packages
        • Run Percona Server for MySQL
        • Uninstall
        • Install with binary tarballs
        • Binary tarballs available
        • Install Percona Server for MySQL from a source tarball
        • Compile Percona Server for MySQL 8.0 from source
        • Install using Docker
        • Docker environment variables
      • Upgrade guide
      • Upgrade using the Percona repositories
      • Upgrade from systems that use the MyRocks or TokuDB storage engine and partitioned tables
      • Upgrade using Standalone Packages
      • Downgrade
      • Binary logs and replication improvements
      • Post-installation
      • Working with AppArmor
      • Working with SELinux
      • Extended SHOW GRANTS
      • Backup and restore overview
      • Backup locks
      • Extended mysqldump
      • Start transaction with consistent snapshot
        • Using LDAP authentication plugins
        • LDAP authentication plugin system variables
      • Data masking
      • PAM authentication plugin
      • SSL improvements
      • Server variables
      • FIDO authentication plugin
      • Encryption functions
        • Data at Rest Encryption
        • Use the keyring component or keyring plugin
          • Using the Key Management Interoperability Protocol (KMIP)
          • Use the Amazon Key Management Service (AWS KMS)
          • Encrypt File-Per-Table Tablespace
          • Encrypt schema or general tablespace
          • Encrypt system tablespace
          • Encrypt temporary files
          • Encrypt Binary Log Files and Relay Log Files
          • Encrypting the Redo Log data
          • Encrypt the undo tablespace
          • Rotate the master key
          • Advanced encryption key rotation
          • Encrypt doublewrite buffers
          • Verify the encryption for tables, tablespaces, and schemas
      • Manage group replication flow control
      • Group replication system variables
      • Audit log plugin
      • Jemalloc memory allocation profiling
      • User statistics
      • Slow query log
      • Process list
      • Misc. INFORMATION_SCHEMA tables
      • Use Percona Monitoring and Management (PMM) Advisors
      • Too many connections warning
      • Handle corrupted tables
      • Thread based profiling
      • Stacktrace
      • Libcoredumper
        • The Percona XtraDB storage engine
        • Improved MEMORY storage engine
        • Improved InnoDB I/O scalability
        • Enforcing storage engine
        • Extended show engine InnoDB status
        • Show storage engines
        • Compressed columns with dictionaries
        • InnoDB full-text search improvements
        • XtraDB changed page tracking
        • XtraDB performance improvements for I/O-bound highly-concurrent workloads
        • Multiple page asynchronous I/O requests
        • Prefix index queries optimization
        • Limit the estimation of records in a Query
        • InnoDB page fragmentation counters
        • Percona MyRocks introduction
        • Percona MyRocks installation guide
        • Updated supported features
        • MyRocks limitations
        • Differences between Percona MyRocks and Facebook MyRocks
        • MyRocks Information Schema tables
        • MyRocks server variables
        • MyRocks status variables
        • Gap locks detection
        • Data loading
        • Installing and configuring Percona Server for MySQL with ZenFS support
        • TokuDB introduction
        • TokuDB installation
        • Use TokuDB
        • Fast updates with TokuDB
        • TokuDB files and file types
        • TokuDB file management
        • TokuDB background ANALYZE TABLE
        • TokuDB variables
        • TokuDB status variables
        • TokuDB fractal tree indexing
        • TokuDB troubleshooting
        • TokuDB Performance Schema integration
        • Frequently asked questions
        • Migrate and removing the TokuDB storage engine
        • Percona TokuBackup
      • List of variables introduced in Percona Server for MySQL 8.0
      • List of features available in Percona Server for MySQL releases
      • Percona Server for MySQL feature comparison
      • Understand version numbers
      • Development of Percona Server for MySQL
      • Trademark policy
      • Index of INFORMATION_SCHEMA tables
      • Frequently asked questions
      • Copyright and licensing information
      • Glossary

    Trademark policy¶

    This Trademark Policy is to ensure that users of Percona-branded products or services know that what they receive has really been developed, approved, tested, and maintained by Percona. Trademarks help to prevent confusion in the marketplace, by distinguishing one company’s or person’s products and services from another’s.

    Percona owns a number of marks, including but not limited to Percona, XtraDB, Percona XtraDB, XtraBackup, Percona XtraBackup, Percona Server for MySQL, and Percona Live, plus the distinctive visual icons and logos associated with these marks. Both the unregistered and registered marks of Percona are protected.

    Use of any Percona trademark in the name, URL, or another identifying characteristic of any product, service, website, or other use is not permitted without Percona’s written permission with the following three limited exceptions.

    First, you may use the appropriate Percona mark when making a nominative fair use reference to a bona fide Percona product.

    Second, when Percona has released a product under a version of the GNU General Public License (“GPL”), you may use the appropriate Percona mark when distributing a verbatim copy of that product in accordance with the terms and conditions of the GPL.

    Third, you may use the appropriate Percona mark to refer to a distribution of GPL-released Percona software that has been modified with minor changes for the sole purpose of allowing the software to operate on an operating system or hardware platform for which Percona has not yet released the software, provided that those third party changes do not affect the behavior, functionality, features, design or performance of the software. Users who acquire this Percona-branded software receive substantially exact implementations of the Percona software.

    Percona reserves the right to revoke this authorization at any time in its sole discretion. For example, if Percona believes that your modification is beyond the scope of the limited license granted in this Policy or that your use of the Percona mark is detrimental to Percona, Percona will revoke this authorization. Upon revocation, you must immediately cease using the applicable Percona mark. If you do not immediately cease using the Percona mark upon revocation, Percona may take action to protect its rights and interests in the Percona mark. Percona does not grant any license to use any Percona mark for any other modified versions of Percona software; such use will require our prior written permission.

    Neither trademark law nor any of the exceptions set forth in this Trademark Policy permit you to truncate, modify, or otherwise use any Percona mark as part of your own brand. For example, if XYZ creates a modified version of the Percona Server for MySQL, XYZ may not brand that modification as “XYZ Percona Server” or “Percona XYZ Server”, even if that modification otherwise complies with the third exception noted above.

    In all cases, you must comply with applicable law, the underlying license, and this Trademark Policy, as amended from time to time. For instance, any mention of Percona trademarks should include the full trademarked name, with proper spelling and capitalization, along with attribution of ownership to Percona Inc. For example, the full proper name for XtraBackup is Percona XtraBackup. However, it is acceptable to omit the word “Percona” for brevity on the second and subsequent uses, where such omission does not cause confusion.

    In the event of doubt as to any of the conditions or exceptions outlined in this Trademark Policy, please contact trademarks@percona.com for assistance and we will do our very best to be helpful.

    Contact us

    For free technical help, visit the Percona Community Forum.

    To report bugs or submit feature requests, open a JIRA ticket.

    For paid support and managed or consulting services , contact Percona Sales.


    Last update: 2023-06-15
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