chore(releasing): Prepare v0.35.0 release

.github/actions/spelling/allow.txt

@@ -109,6 +109,7 @@ Lifetab
 Lifetouch
 Lumia
 Malata
+manden
 Maxthon
 Mediacom
 Medion

distribution/install.sh

@@ -13,7 +13,7 @@ set -u
 # If PACKAGE_ROOT is unset or empty, default it.
 PACKAGE_ROOT="${PACKAGE_ROOT:-"https://packages.timber.io/vector"}"
 # If VECTOR_VERSION is unset or empty, default it.
-VECTOR_VERSION="${VECTOR_VERSION:-"0.34.2"}"
+VECTOR_VERSION="${VECTOR_VERSION:-"0.35.0"}"
 _divider="--------------------------------------------------------------------------------"
 _prompt=">>>"
 _indent="   "

website/content/en/highlights/2023-12-19-0-35-0-upgrade-guide.md

@@ -16,6 +16,10 @@ Vector's 0.35.0 release includes **breaking changes**:
 1. [Datadog sinks now default the API key and Site to the value of environment variables](#datadog-env-vars)
 1. [Removal of `requests_completed_total`, `request_duration_seconds`, and `requests_received_total` Internal Metrics](#remove-obsolete-http-metrics)
 
+and **deprecations**:
+
+1. [Deprecation of undefined environment variable warnings](#strict-env-vars)
+
 and **potentially impactful changes**:
 
 1. [HTTP server-based sources now include a `keepalive.max_connection_age_secs` config option that defaults to 5 minutes](#http-keepalive-max-connection-age)
@@ -55,6 +59,23 @@ The `requests_completed_total`, `request_duration_seconds`, and `requests_receiv
 | request_duration_seconds    | http_client_response_rtt_seconds    | apache metrics, aws ecs metrics, http client, prometheus remote write, prometheus scrape |
 | requests_received_total     | http_server_requests_received_total | aws kinesis firehose, heroku logplex, prometheus exporter, splunk hec                    |
 
+### Deprecations
+
+#### Deprecation of undefined environment variable warnings {#strict-env-vars}
+
+Vector has the ability to [interpolate environment variables into its
+configuration](/docs/reference/configuration/#environment-variables) as a means of templating
+configuration. Currently, if an environment variable is undefined (unless the `?` interpolation
+syntax is used) Vector outputs a warning and replaces the environment variable with an empty string.
+In a future release , this will change from a warning to a hard error. This behavior can be opted
+into earlier by using the `--strict-env-vars` flag (or `VECTOR_STRICT_ENV_VARS` environment
+variable) when running Vector.
+
+The reasoning for this change is that users often miss the undefined variable warning and are
+confused by Vector not behaving as the expected. In particular, this happens when using `$1` in
+regex capture groups in VRL without realizing they need to be escaped as `$$1` to avoid
+interpolation.
+
 ### Potentially impactful changes
 
 #### HTTP server-based sources now include a `keepalive.max_connection_age_secs` config option that defaults to 5 minutes {#http-keepalive-max-connection-age}

website/content/en/releases/0.35.0.md

@@ -0,0 +1,4 @@
+---
+title: Vector v0.35.0 release notes
+weight: 21
+---

website/cue/reference/administration/interfaces/kubectl.cue

@@ -19,7 +19,7 @@ administration: interfaces: kubectl: {
 	role_implementations: [Name=string]: {
 		commands: {
 			_deployment_variant:       string
-			_vector_version:           "0.34"
+			_vector_version:           "0.35"
 			_namespace:                string | *"vector"
 			_controller_resource_type: string
 			_controller_resource_name: string | *_deployment_variant