Extended func support - doc update (thanos-io#7161)

* Add support for extended promql functions in rule

Adds a flag to register the extended promql functions supported by the thanos
query engine when running the rule component.  This will allow rule config
files containing query expressions with (xrate / xincrease / xdelta) to pass
validation.  This will only work if the query endpoint in use is running the
thanos engine.

Signed-off-by: Samuel Dufel <samuel.dufel@shopify.com>

* Update rendered docs with added flag

Signed-off-by: Samuel Dufel <samuel.dufel@shopify.com>

---------

Signed-off-by: Samuel Dufel <samuel.dufel@shopify.com>

CHANGELOG.md

@@ -14,12 +14,28 @@ We use *breaking :warning:* to mark changes that are not backward compatible (re
 
 - [#7083](https://github.com/thanos-io/thanos/pull/7083) Store Gateway: Fix lazy expanded postings with 0 length failed to be cached.
 - [#7082](https://github.com/thanos-io/thanos/pull/7082) Stores: fix label values edge case when requesting external label values with matchers
+- [#7080](https://github.com/thanos-io/thanos/pull/7080) Receive: race condition in handler Close() when stopped early
+- [#7132](https://github.com/thanos-io/thanos/pull/7132) Documentation: fix broken helm installation instruction
 
 ### Added
 - [#7105](https://github.com/thanos-io/thanos/pull/7105) Rule: add flag `--query.enable-x-functions` to allow usage of extended promql functions (xrate, xincrease, xdelta) in loaded rules
 
 ### Changed
 
+- [#7123](https://github.com/thanos-io/thanos/pull/7123) Rule: Change default Alertmanager API version to v2.
+
+### Removed
+
+## [v0.34.1](https://github.com/thanos-io/thanos/tree/release-0.34) - 11.02.24
+
+### Fixed
+
+- [#7078](https://github.com/thanos-io/thanos/pull/7078) *: Bump gRPC to 1.57.2
+
+### Added
+
+### Changed
+
 ### Removed
 
 ## [v0.34.0](https://github.com/thanos-io/thanos/tree/release-0.34) - release in progress

docs/components/rule.md

@@ -401,6 +401,10 @@ Flags:
       --query.default-step=1s    Default range query step to use. This is
                                  only used in stateless Ruler and alert state
                                  restoration.
+      --query.enable-x-functions
+                                 Whether to enable extended rate functions
+                                 (xrate, xincrease and xdelta). Only has effect
+                                 when used with Thanos engine.
       --query.http-method=POST   HTTP method to use when sending queries.
                                  Possible options: [GET, POST]
       --query.sd-dns-interval=30s