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Latest Version
Avg Release Cycle
158 days
Latest Release
36 days ago

Changelog History
Page 2

  • v22.0.4 Changes

    February 27, 2026

    🚀 Release of Vitess v22.0.4

    Summary

    🚀 This is a security focused release. It contains fixes for two recently reported CVEs along with a number of other security related fixes.

    0️⃣ External Decompressor No Longer Read from Backup MANIFEST by Default

    🔒 This is a fix for the following security advisory and associated CVE

    🔒 The external decompressor command stored in a backup's MANIFEST file is no longer used at restore time by default. Previously, when no --external-decompressor flag was provided, VTTablet would fall back to the command specified in the MANIFEST. This posed a security risk: an attacker with write access to backup storage could modify the MANIFEST to execute arbitrary commands on the tablet.

    Please note that this is a breaking change. Starting in v22.0.4, the MANIFEST-based decompressor is ignored unless you explicitly opt in with the new --external-decompressor-use-manifest flag. If you rely on this behavior, add the flag to your VTTablet configuration, but be aware of the security implications.

    👀 See #19460 for details.

    ⏪ Prevent Path Traversals Via Backup MANIFEST Files On restore

    🔒 This is a fix for the following security advisory and associated CVE

    ⏪ We now prevent a common Path Traversal attack that someone with write access to backup storage could use to escape the target restore directory and write files to arbitrary filesystem paths via modifications to the MANIFEST.

    👀 See #19470 for details.

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 37 merged Pull Requests.

    Thanks to all our contributors: @app/vitess-bot, @mattlord, @vitess-bot

  • v22.0.3 Changes

    February 04, 2026

    🚀 Release of Vitess v22.0.3

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 40 merged Pull Requests.

    Thanks to all our contributors: @app/vitess-bot, @mattlord, @mhamza15, @timvaillancourt, @vitess-bot

  • v22.0.2 Changes

    November 05, 2025

    🚀 Release of Vitess v22.0.2

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 59 merged Pull Requests.

    Thanks to all our contributors: @GuptaManan100, @app/vitess-bot, @arthurschreiber, @mattlord, @vitess-bot

  • v22.0.1 Changes

    June 18, 2025

    🚀 Release of Vitess v22.0.1

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 19 merged Pull Requests.

    Thanks to all our contributors: @GuptaManan100, @app/vitess-bot, @vitess-bot

  • v22.0.0 Changes

    April 29, 2025

    🚀 Release of Vitess v22.0.0

    Summary

    Table of Contents

    Major Changes

    🗄 Deprecations

    Metrics

    🗄 | Component | Metric Name | Deprecation PR | | --- | --- | --- | | vtgate | QueriesProcessed | #17727 | | vtgate | QueriesRouted | #17727 | | vtgate | QueriesProcessedByTable | #17727 | | vtgate | QueriesRoutedByTable | #17727 |

    CLI Flags

    🗄 | Component | Flag Name | Notes | Deprecation PR | | --- | --- | --- | --- | | vttablet | twopc_enable | Usage of TwoPC commit will be determined by the transaction_mode set on VTGate via flag or session variable. | #17279 | | vtgate | grpc-send-session-in-streaming | Session will always be sent as part of the response from the StreamExecute RPC. | #17907 |

    Deletions

    Metrics

    🗄 | Component | Metric Name | Was Deprecated In | Deletion PR | | --- | --- | --- | --- | | vttablet | QueryCacheLength | v21.0.0 | #16289 | | vttablet | QueryCacheSize | v21.0.0 | #16289 | | vttablet | QueryCacheCapacity | v21.0.0 | #16289 | | vttablet | QueryCacheEvictions | v21.0.0 | #16289 | | vttablet | QueryCacheHits | v21.0.0 | #16289 | | vttablet | QueryCacheMisses | v21.0.0 | #16289 |

    CLI Flags

    🗄 | Component | Flag Name | Was Deprecated In | Deletion PR | | --- | --- | --- | --- | | vttablet | queryserver-enable-settings-pool | v21.0.0 | #16280 | 🚚 | vttablet | remove-sharded-auto-increment | v21.0.0 | #16860 | | vttablet | disable_active_reparents | v20.0.0 | #14871 | | vtgate, vtcombo, vtctld | healthcheck-dial-concurrency | v21.0.0 | #16378 |

    gh-ost and pt-osc Online DDL strategies

    👍 Vitess no longer recognizes the gh-ost and pt-osc (pt-online-schema-change) Online DDL strategies. The vitess strategy is the recommended way to make schema changes at scale. mysql and direct strategies continue to be supported.

    🚚 These vttablet flags have been removed:

    • --gh-ost-path
    • --pt-osc-path

    Attempting to use gh-ost or pt-osc as --ddl-strategy will yield an error:

    $ vtctldclient ApplySchema --ddl-strategy="gh-ost"...
$ vtctldclient ApplySchema --ddl-strategy="pt-osc"...

    🆕 New Metrics

    VTGate
    Name Dimensions Description PR
    QueryExecutions Query, Plan, Tablet Number of queries executed. #17727
    QueryRoutes Query, Plan, Tablet Number of vttablets the query was executed on. #17727
    QueryExecutionsByTable Query, Table Queries executed by vtgate, with counts recorded per table. #17727
    VStreamsCount Keyspace, ShardName, TabletType Number of active vstreams. #17858
    VStreamsEventsStreamed Keyspace, ShardName, TabletType Number of events sent across all vstreams. #17858
    VStreamsEndedWithErrors Keyspace, ShardName, TabletType Number of vstreams that ended with errors. #17858
    CommitModeTimings Mode Timing metrics for commit (Single, Multi, TwoPC). #16939
    CommitUnresolved N/A Counter for 2PC transaction failures after Prepare. #16939

    👀 The work done in #17727 introduces new metrics for queries. Via this work we have deprecated several vtgate metrics, please see the Deprecated Metrics section. Here is an example of how the new metrics are calculated:

    Query: select t1.a, t2.b from t1 join t2 on t1.id = t2.id
Shards: 2
Sharding Key: id for both tables

Metrics Published:
1. QueryExecutions – {select, scatter, primary}, 1
2. QueryRoutes – {select, scatter, primary}, 2
3. QueryExecutionsByTable – {select, t1}, 1 and {select, t2}, 1
    VTTablet
    Name Dimensions Description PR
    TableRows Table Estimated number of rows in the table. #17570
    TableClusteredIndexSize Table Byte size of the clustered index (i.e. row data). #17570
    IndexCardinality Table, Index Estimated number of unique values in the index #17570
    IndexBytes Table, Index Byte size of the index. #17570
    UnresolvedTransaction ManagerType Current number of unresolved transactions. #16939
    ...

  • v22.0.0-rc3 Changes

    April 24, 2025

    🚀 Release of Vitess v22.0.0

    Summary

    Table of Contents

    Major Changes

    🗄 Deprecations

    Metrics

    🗄 | Component | Metric Name | Deprecation PR | | --- | --- | --- | | vtgate | QueriesProcessed | #17727 | | vtgate | QueriesRouted | #17727 | | vtgate | QueriesProcessedByTable | #17727 | | vtgate | QueriesRoutedByTable | #17727 |

    CLI Flags

    🗄 | Component | Flag Name | Notes | Deprecation PR | | --- | --- | --- | --- | | vttablet | twopc_enable | Usage of TwoPC commit will be determined by the transaction_mode set on VTGate via flag or session variable. | #17279 | | vtgate | grpc-send-session-in-streaming | Session will always be sent as part of the response from the StreamExecute RPC. | #17907 |

    Deletions

    Metrics

    🗄 | Component | Metric Name | Was Deprecated In | Deletion PR | | --- | --- | --- | --- | | vttablet | QueryCacheLength | v21.0.0 | #16289 | | vttablet | QueryCacheSize | v21.0.0 | #16289 | | vttablet | QueryCacheCapacity | v21.0.0 | #16289 | | vttablet | QueryCacheEvictions | v21.0.0 | #16289 | | vttablet | QueryCacheHits | v21.0.0 | #16289 | | vttablet | QueryCacheMisses | v21.0.0 | #16289 |

    CLI Flags

    🗄 | Component | Flag Name | Was Deprecated In | Deletion PR | | --- | --- | --- | --- | | vttablet | queryserver-enable-settings-pool | v21.0.0 | #16280 | 🚚 | vttablet | remove-sharded-auto-increment | v21.0.0 | #16860 | | vttablet | disable_active_reparents | v20.0.0 | #14871 | | vtgate, vtcombo, vtctld | healthcheck-dial-concurrency | v21.0.0 | #16378 |

    gh-ost and pt-osc Online DDL strategies

    👍 Vitess no longer recognizes the gh-ost and pt-osc (pt-online-schema-change) Online DDL strategies. The vitess strategy is the recommended way to make schema changes at scale. mysql and direct strategies continue to be supported.

    🚚 These vttablet flags have been removed:

    • --gh-ost-path
    • --pt-osc-path

    Attempting to use gh-ost or pt-osc as --ddl-strategy will yield an error:

    $ vtctldclient ApplySchema --ddl-strategy="gh-ost"...
$ vtctldclient ApplySchema --ddl-strategy="pt-osc"...

    🆕 New Metrics

    VTGate
    Name Dimensions Description PR
    QueryExecutions Query, Plan, Tablet Number of queries executed. #17727
    QueryRoutes Query, Plan, Tablet Number of vttablets the query was executed on. #17727
    QueryExecutionsByTable Query, Table Queries executed by vtgate, with counts recorded per table. #17727
    VStreamsCount Keyspace, ShardName, TabletType Number of active vstreams. #17858
    VStreamsEventsStreamed Keyspace, ShardName, TabletType Number of events sent across all vstreams. #17858
    VStreamsEndedWithErrors Keyspace, ShardName, TabletType Number of vstreams that ended with errors. #17858
    CommitModeTimings Mode Timing metrics for commit (Single, Multi, TwoPC). #16939
    CommitUnresolved N/A Counter for 2PC transaction failures after Prepare. #16939

    👀 The work done in #17727 introduces new metrics for queries. Via this work we have deprecated several vtgate metrics, please see the Deprecated Metrics section. Here is an example of how the new metrics are calculated:

    Query: select t1.a, t2.b from t1 join t2 on t1.id = t2.id
Shards: 2
Sharding Key: id for both tables

Metrics Published:
1. QueryExecutions – {select, scatter, primary}, 1
2. QueryRoutes – {select, scatter, primary}, 2
3. QueryExecutionsByTable – {select, t1}, 1 and {select, t2}, 1
    VTTablet
    Name Dimensions Description PR
    TableRows Table Estimated number of rows in the table. #17570
    TableClusteredIndexSize Table Byte size of the clustered index (i.e. row data). #17570
    IndexCardinality Table, Index Estimated number of unique values in the index #17570
    IndexBytes Table, Index Byte size of the index. #17570
    UnresolvedTransaction ManagerType Current number of unresolved transactions. #16939
    ...

  • v21.0.6 Changes

    November 05, 2025

    🚀 Release of Vitess v21.0.6

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 42 merged Pull Requests.

    Thanks to all our contributors: @GuptaManan100, @app/vitess-bot, @arthurschreiber, @harshit-gangal, @mattlord

  • v21.0.5 Changes

    June 18, 2025

    🚀 Release of Vitess v21.0.5

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 14 merged Pull Requests.

    Thanks to all our contributors: @GuptaManan100, @app/vitess-bot, @frouioui, @harshit-gangal, @systay, @vitess-bot

  • v20.0.8 Changes

    June 18, 2025

    🚀 Release of Vitess v20.0.8

    🚀 The entire changelog for this release can be found here.

    🚀 The release includes 11 merged Pull Requests.

    Thanks to all our contributors: @GuptaManan100, @app/vitess-bot, @frouioui

  • v8.0.0 Changes

    October 27, 2020

    🚀 This release complies with VEP-3 which removes the upgrade order requirement. Components can be upgraded in any order. It is recommended that the upgrade order should still be followed if possible, except to canary test the new version of VTGate before upgrading the rest of the components.

    Incompatible Changes

    🚀 The following PRs made changes to behavior that clients might be relying on. They should be reviewed carefully so that client code can be changed in concert with a Vitess release deployment.

    • 🔄 Change error code from 1203 to 1153 for three specific error conditions. #6630
      The three errors being changed:
      When a GRPC message coming back to the vtgate exceeds the configured size limit (configured via grpc_max_message_size)
      🔧 If a write is attempting to make a change with a payload that is larger than the configured allowable size
      If a scatter query is attempting to collect and process too many rows in memory within the vtgate to construct a response
    • 0️⃣ Zero auto-increment mode: This enables inserting a 0 value (and not just NULL) into an auto-increment column to generate sequence values. This matches the default behavior of MySQL. #6749
    • 0️⃣ Turn off schema tracker by default #6712

    🐛 Bugs Fixed

    VTGate / MySQL compatibility

    • 🛠 Fix where clause in information schema with correct database name #6599
    • 🛠 Fix DDL execution on reserved connection without in active transaction #6514
    • Fix allow passed table_schema in information_schema queries to vttablet if the keyspace is not found #6653
    • 🛠 Fix information schema for non-existent schema #6667
    • 🛠 Fix reserved connection in autocommit mode on DML #6748
    • 🛠 Fix dbname that needs escaping that we broke in fce4cfd #6794
    • MySQL CLI, mysql --ssl does not work in MySQL 8.0 #5556
    • OperationalError: (_mysql_exceptions.OperationalError) (2013, 'Lost connection to MySQL server during query') #6208
    • Fix support for show tables where tables_in_db to use keyspace name, not underlying db name #6446
    • Common empty result set query on MySQL returns a row in Vitess #6663
    • Operator precedence issue #6734
    • Table names out-of-order between replica and primary #6738
    • ⏪ Close Idle reserved connections and Rollback Idle transactions #6552
    • 🛠 Minor Vindex fixes: #6526
    • VTgate does not report autocommit system variable and SERVER_STATUS_IN_TRANS flag correctly #5825
    • 0️⃣ MariaDB JDBC Connector fails to connect to vtgate with default options #5851
    • VTgate panics if there are no vttablets and vtctlds #6117
    • ✂ Remove shard session held in vtgate for reserved connection on connection failure #6522
    • Session variable does not work as expected in 7.0 #6559
    • Retry should not happen when in dedicated connection #6523
    • Correctly report AUTOCOMMIT status in network packets #6551
    • ⏪ Close Idle reserved connections and Rollback Idle transactions #6552
    • Reset Session for Reserved Connection Query Failure #6673
    • Errors in multi-statement queries not fatal to statement sequence #6747 #6808
    • 🔒 Lock wait timeout on DELETE from table using lookup index #6698
    • Application couldn't connect to external db giving error tabletserver.go:1522] Code: INVALID_ARGUMENT syntax error at position 33 near ':vtg2' (CallerID: gnocchi) : Sql: "select convert(:vtg1, CHAR(:vtg2)) as anon_1 from dual", #6466
    • The client got the wrong database name #6753
    • 👻 DBAPIError exception wrapped from (pymysql.err.InternalError) (1105, u'vtgate: http://gnocchi-gnocchizone-vtgate:15000/: reserved connections are not supported on old gen gateway') #6577
    • 👍 Provide support for “SELECT INTO OUTFILE S3” #6811
    • 🛠 Fix error around breaking of multi statements #6824
    • 👌 Support SHOW TABLE STATUS FROM db type queries in vtgate #6354
    • 👉 SHOW FULL FIELDS doesn't follow routing rules #6803
    • VDiff/Tablet Picker: fix picker retry logic to handle canceled context #6954
    • Healthcheck: Use isIncluded correctly to fix replica/rdonly routing bug #6922

    Other

    • VReplication tablet_picker should keep trying to find a tablet until context expires #6546
    • ⚡️ VReplication improve reverse workflow: update cells/tablet_types #6556
    • VDiff: fix panic for tables with a unicode_loose_md5 vindex #6640
    • 💻 Vtctld UI: Add mysqld port display back to vtctld web UI #6598 #6597
    • 🖨 Vtctld: Fix workflow CopyState fetching (and thus printing). #6657
    • 🛠 Fix unsaved event regression #6710
    • 🔄 Change tracker to use allprivs instead of dba #6720
    • 🛠 Fixes long wait filter keyspace #6721
    • s3 ListBackups doesn’t work from root directory #6732
    • Vtctld: ExecuteFetchAsDba and ExecuteFetchAsAllPrivs do not escape db names. #6545
    • Can't switch on restore_from_backup on existing shard with no tables #4896
    • 🔨 Refactor conn.go #6818

    Functionality Added or Changed

    VTGate / MySQL compatibility

    • ➕ Add support for DELETE IGNORE #6722
    • Only take on simple dual queries in the vtgate #6666
    • 👌 Support mycli access to vtgate #4365
    • Add support for unicode_loose_xxhash #6457
    • Provide virtual information_schema #5394
    • information_schema.tables_schema comparison with dynamic value no longer works #6827
    • Mysqldump: Allow setting multiple variables in one statement #5401
    • 🔒 Block lock function usage other than dual table #6470
    • 🔒 Lock Session Support #6517
    • 👉 Make sure lookup vindexes are queryable inside transaction #6499
    • Add unicode_loose_xxhash Vindex type #6549
    • 👌 Support vindex update or delete when destination is provided by client in dml query #6554
    • 👉 Make sure to handle EXPLAIN on tablets #6579
    • Rewrite SHOW TABLES #6615
    • 👉 Make offset work in OLAP mode #6655
    • Support sql_calc_found_rows with limit in sharded keyspace #6680
    • 🔒 Lock shard session heartbeat #6683
    • 🗄 Mysql -ssl tag is deprecated in the later versions of mysql #6682
    • 👉 Use statement support in olap mode #6692
    • ✂ Delete row using consistent lookup vindex in where clause #6700
    • ➕ Add vtexplain support for non-evenly sharded keyspaces #6705
    • 👉 Make sure dual queries set found_rows correctly #6718
    • ➕ Add if not exists support to database ddl in parsing #6724
    • 👍 Allow Update of same vindex using same vindex lookup on consistent lookup vindex #6736
    • ⚡️ Update Vindex only on changes #6737
    • Add support for SHOW (DATABASES|VITESS_SHARDS|VITESS_TABLETS) LIKE #6750
    • 👍 'CASCADE' support #6743
    • Mask database name #6791
    • 👉 Make sure to backtick schema names properly #6550
    • Transaction Limiter: fix quota leak if Begin() errors or if the tx killer runs #6731
    • 👍 Allow Load Data From S3 #6823

    OLAP Functioanlity

    • 👍 Allow switching between OLAP and OLTP #6691
    • 👉 Use statement support in olap mode #6692
    • 🛠 Fix error handling in olap mode #6940

    👍 Set Statement Support

    Set statement support is added in Vitess. There are some system variables which are disabled by default and can be enabled using flag -enable_system_settings on VTGate.These system variables are set on the backing MySQL instance, and will force the connection to be dedicated instead of part of the connection pool.

    • 0️⃣ Disabled passthrough system variables by default. #6859
    • 👍 Allow switching workload between OLAP and OLTP #4086 #6691
    • 👌 Support for multiple session set statement syntax #6508 #6495 #6494
    • 👍 Allow enumeration in set system variables #6493
    • 🖐 Handle boolean settings better #6501
    • 🔨 Set statements refactored to use plan building #6487
    • ➕ Add more system settings #6486
    • Evaluate system variables #6708

    VReplication

    • VReplication: _vt.vreplication source column VARBINARY->BLOB, allowing more tables to participate in a workflow #6421
    • 🐎 VReplication and vstreamer performance and error metrics #6519, #6132
    • VReplication: Find collations for char primary keys and cast comparison during catchup #6568
    • Varchar primary keys with collations can cause vreplication to miss rows #6622
    • VReplication: Timestamp w/ Heartbeat #6635
    • 🌲 VReplication: Improve few error/log messages #6669
    • VReplication: handle SET statements in the binlog stream #6772
    • 👷 VReplication: e2e Tests added to CI #6730
    • 🔊 VDiff logs: additional logging around vdiff/vstreamer for observability #6684
    • VStream: experimental POC of mysql protocol #6670
    • 👍 Materialize: Support rollups using a literal value as a column #6733
    • Materialization: Ignore non-participating tables that are renamed/deleted #6778
    • Materialize: add ability for maintaining accurate table-level aggregates #6767
    • 0️⃣ Schema Tracker: Turn off schema tracker by default #6712 (breaking change)
    • Workflow: Add List-All Command #6533
    • 📇 Workflow: List -> Show, and Expand Metadata #6544
    • 🔨 Refactor: Cleanup Noisy Workflow Logging #6744
    • Schema tracker: Change tracker to use the allprivs user instead of dba #6720
    • vtctl: Adding VExec and Workflow commands #6410
    • vtctl Workflow cmd: don't expect all shards to have workflow streams #6576
    • Reshard: Sort table definitions before comparing them #6765 #6738
    • 🔦 Expose a shard range calculator as a vtctl command GenerateShardRanges #6751 #6752
    • VStream: Field event now has all column attributes #6525
    • VStream events do not populate field "Flags" on FIELD events #5914
    • 👯 RFC: VReplication based SplitClone #4604
    • 👍 Experimental: Mysql Protocol support for VStream #6675
    • VReplication: Add metrics around vstreamer and vreplication metrics #6787
    • 🛠 Fix issues with missing tables in vstreams #6789
    • ➕ Add validations and logs to fix common issues faced during MoveTables/Reshard #6814
    • 👍 Allow multiple blacklists for master #6816

    VTtablet

    • VTtablet throttling #6668
      📄 https://vitess.io/docs/reference/features/tablet-throttler/
    • TabletManager: publish displayState #6648
    • TabletManager: call setReadOnly inside ChangeTabletType #6762
    • TabletManager: change how SetReadOnly is called to avoid errors from externally managed tablets #6786
    • TabletManager: call SetReadOnly inside ChangeTabletType #6804
    • vttablet: Open and Close healthStreamer #6515
    • vttablet: create database if not present #6490
    • ⏪ Restore: do not change tablet type to RESTORE if not actually performing a restore #6679
    • ⏪ Restore: checkNoDB should not require tables to be present #6695
    • Heartbeat: Additional metrics/stats (lag histogram) #6528 #6634
    • VTtablet throttler feature flag: -enable-lag-throttler #6815
    • VTtablet two-phase commit design doc #6498

    VTorc - Orchestrator

    Following PRs are experimental version of Vitess-native Orchestrator 'vtorc' is ready for users to try out.

    • Orchestrator: initial import of Orchestrator #6582
    • Orchestrator: vitess mode #6613
    • Orchestrator: more changes #6714
    • ⏱ Orchestrator: use contexts with timeout for remote operations #6780
    • 🛠 Orchestrator: fixed orchestrator govet errors #6781
    • Orchestrator: Add clusters_to_watch flag to. Defaults to all clusters. #6821

    Point in Time Recovery

    • PITR: Fix deadlock in ff code #6774
    • ➕ Add flags to allow PITR binlog client TLS support #6775

    Other

    • ➕ Add realtime health stats to vtctld /api/keyspace/ks/tablets API #6569
    • 💻 vtctld UI: Fix logic for displaying vindexes #6603
    • 📄 Online schema changes #6547
    • 📄 Table lifecycle management #6719, docs
    • Online-DDL: migration uses low priority throttling #6837
    • 🔨 Emergency Reparent Refactor #6449
      • Make emergency reparents more robust. #6206
    • ✅ Reparent test failures #6706
    • ⚡️ Update user-facing terminology in the vtctld2 UI #6481
    • 🚤 GetSchema: Batch/parallel access to underlying mysqld for lower latency #6491
    • Prometheus interface: vtgate_buffer_* metrics cardinality #6326
    • 💻 Show more vindex details in vtctld /app/schema UI #6450
    • ⚡️ GRPC: update enforcement policy on server to match the one from the client #6629

    Examples / Tutorials

    • region_sharding: working resharding example #6565
    • 🐳 vtcompose/docker-compose: fix InitShardMaster #6584
    • 🐳 [docker] fix tablet hostname #6509

    📚 Documentation

    • Replace more uses of slave with replica/replication #6520
    • ⚡️ Update some option docstrings for accuracy. #6590
    • Minor addition to Materialize help text. #6627
    • ✂ Remove auto-generation comment #6728
    • ➕ add skip flag that can skip comparing source & destination schema when run splitdiff #6477
    • 🛠 Fix and clarify some help options #6817

    🏗 Build Environment Changes

    • ➕ Address #6631 by reducing optimization level #6632
    • ➕ Add front-end build tooling + fix build error #6473
    • Replace gogo proto with golang #6571
    • 👌 Improve make proto #6580
    • ✂ Remove chromium hard-coding #6636
    • 🏗 Docker - allow BUILD_NUMBER variable override #6628
    • 🐳 Docker/lite: Fix package URLs for ubi images. #6704
    • ⚡️ Helm & docker/k8s update #6723
    • 🛠 Fix build errors in ./go/vt/vtgate for go1.15 #6800
    • 🛠 Fix build error on vcursor_impl tests on newer versions of go #6799
    • 🚀 [java] bump java version to 8.0.0-SNAPSHOT for next release #6478
    • 🏗 Helm/docker: fix Docker builds + tag 7.0.2 #6773
    • 🚀 Docker: Upgrade to Debian Buster (release-8.0) #6888
    • 🐳 Docker: Pin mysql 5.7 and 8.0 versions for xtrabackup compatibility
    • 🚀 Docker: Revert "Docker - upgrade to Debian Buster (release-8.0)" #6929
    • Zookeper: Download zookeeper 3.4.14 from archive site #6867

    Functionality Neutral Changes

    • 🚚 Routing cleanup: remove routeOptions #6531
    • ✅ PITR: testcase #6594
    • Replaced Error with a warning in case parsing of VT_SPAN_CONTEXT fails #6766
    • 🔨 Reparent tests refactoring: setup/teardown for each test, reduce cut/paste, improve readability #6726
    • ✅ Decider: endtoend test infrastructure + tests #6770
    • ✅ Orchestrator: add more test cases #6801
    • ✅ Orchestrator: don't set DbName for tests that don't need it. #6812
    • ➕ Add unit test case to improve test coverage for go/sqltypes/named_result.go #6672
    • ✅ End to end: deflake sharding tests #6715
    • 🚚 Workflow test: fix flaky test. remove obsolete code #6694
    • ➕ Add unit test for func Proto3ValuesEqual. #6649
    • ✅ Ensure tests for discoverygateway #6536
    • 🌲 Convert syslog events to normal log events #6511
    • ➕ Add diagnostic logging to healthcheck. #6512
    • Healthcheck should receive healthcheck updates from all tablets in cells_to_watch #6852
    • Named columns and convenience SQL query interface #6543
    • ✅ Check http response code in vtctld API tests #6570
    • 🔒 Reverting package-lock.json to the one pre-PR #6603 #6611
    • ✂ Removed sqlparser.preview to set logstats stmtType and use plan.type #6637
    • AST struct name rewording #6642
    • 🛠 Fix: Remove SetMaster Query Expectation from ERS Test #6617
    • 🛠 Fix path for vttablet query log in end to end test #6656
    • 🛠 Fixes error log #6496
    • ➕ Add diagnostic logging to healthcheck. #6535
    • Try to install apt keys from list of different keyservers #6674
    • Trivial copy-pasta comment fixup #6592
    • ✂ Remove long-unused memcache and cacheservice #6596
    • 🛠 Fix MoveTables docstring; was not valid JSON. #6606
    • ✅ Tablet gateway: unit tests #6608
    • Tablet gateway doesn't see all tablets in cells from cells_to_watch #6846
    • ➕ Add Sleep to ERS Unit Test #6610
    • Strings to enum #6729
    • ✂ Remove syslog dependency #3563
    • Operator precedence must take associativity into consideration #6758
    • ➕ Add optional ignore to delete statement #6802
    • 🛰 Invalid trace payload causes vitess to fail the request and return an error #6759
    • 🌲 Vttablet: minor logging fix #6564
    • 🌲 Vttablet: add more logging to checkMastership #6618