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Documented the legacy healthcheck and tabletgateway and added summary to 14's summary #10567

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Jun 22, 2022
Merged

Documented the legacy healthcheck and tabletgateway and added summary to 14's summary #10567

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2bd2f71
Documented the legacy healthcheck and tabletgateway and added summary…
frouioui Jun 22, 2022
19f3957
Revert unwanted change in 14_summary
frouioui Jun 22, 2022
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26 changes: 25 additions & 1 deletion doc/releasenotes/14_0_0_summary.md
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@@ -1,3 +1,20 @@
## Summary

- [Gen4 is now the default planner](#gen4-is-now-the-default-planner)
- [New query support](#new-query-support)
- [Command-line syntax deprecations](#command-line-syntax-deprecations)
- [New command line flags and behavior](#new-command-line-flags-and-behavior)
- [Online DDL changes](#online-ddl-changes)
- [Table lifecycle](#table-lifecycle)
- [Tablet throttler](#tablet-throttler)
- [New Syntax](#new-syntax)
- [Heartbeat](#heartbeat)
- [VDiff2](#vdiff2)
- [Durability Policy](#durability-policy)
- [Deprecation of Durability Configuration](#deprecation-of-durability-configuration)
- [Advisory locking optimisations](#advisory-locking-optimisations)
- [Drop the use of the legacy healthcheck in VTCtld](#drop-the-use-of-the-legacy-healthcheck-in-vtctld)

## Major Changes

### Gen4 is now the default planner
Expand Down Expand Up @@ -95,6 +112,10 @@ The flag `--online_ddl_check_interval` is deprecated and will be removed in `v15

The flag `--planner-version` is deprecated and will be removed in `v15`. Instead, please use `--planer_version`.

#### Removal of --gateway_implementation

In previous releases, the `discoverygateway` was deprecated. In Vitess 14 it is now entirely removed, along with the VTGate flag that allowed us to select the tablet gateway.

### Online DDL changes

#### Online DDL is generally available
Expand Down Expand Up @@ -289,4 +310,7 @@ the command `SetKeyspaceDurabilityPolicy` specified above, to ensure VTOrc conti
path is to upgrade vtctld, run `SetKeyspaceDurabilityPolicy` and then upgrade VTOrc.**

### Advisory locking optimisations
Work has gone into making the advisory locks (`get_lock()`, `release_lock()`, et al) release reserved connections faster and in more situations than before.
Work has gone into making the advisory locks (`get_lock()`, `release_lock()`, et al) release reserved connections faster and in more situations than before.

### Drop the use of the legacy healthcheck in VTCtld
In release `7.0.0`, a new healthcheck was developed and the old one was renamed legacy healthcheck. In Vitess 14, we have changed VTCtld to use the new healthcheck instead of the legacy.