docs: remove experimental flag cache provider labels

contents/docs/feature-flags/local-evaluation/_snippets/distributed-environments-intro.mdx

@@ -8,7 +8,7 @@ This enables you to:
 - Coordinate fetching so only one worker polls at a time
 - Pre-cache definitions for ultra-low-latency flag evaluation
 
-> **Note:** External cache providers are currently available in Node.js and Python SDKs only. This feature is experimental and may change in minor versions.
+> **Note:** External cache providers are currently available in the Node.js, Python, and Ruby SDKs.
 
 ## When to use an external cache
 

contents/docs/feature-flags/local-evaluation/_snippets/distributed-environments-node.mdx

@@ -3,7 +3,7 @@
 Import the interface from the SDK:
 
 ```typescript
-import { FlagDefinitionCacheProvider, FlagDefinitionCacheData } from 'posthog-node/experimental'
+import { FlagDefinitionCacheProvider, FlagDefinitionCacheData } from 'posthog-node'
 ```
 
 ## The interface

contents/docs/libraries/ruby-on-rails.mdx

@@ -430,7 +430,7 @@ end
 | `feature_flag_request_timeout_seconds` | Integer | `3` | Timeout, in seconds, for feature flag requests. |
 | `before_send` | Proc | `nil` | Callback that receives the event hash before it is queued or sent. Return a modified event hash, or `nil` to drop the event. |
 
-The `PostHog.init` block supports the options above. Less common core options like `batch_size`, `disable_singleton_warning`, `skip_ssl_verification`, and the experimental `flag_definition_cache_provider` can be passed as an options hash to `PostHog.init(...)`; see the [Ruby SDK docs](/docs/libraries/ruby#configuration) for details.
+The `PostHog.init` block supports the options above. Less common core options like `batch_size`, `disable_singleton_warning`, `skip_ssl_verification`, and `flag_definition_cache_provider` can be passed as an options hash to `PostHog.init(...)`; see the [Ruby SDK docs](/docs/libraries/ruby#configuration) for details.
 
 ### Rails-specific options
 

contents/docs/libraries/ruby/index.mdx

@@ -58,7 +58,7 @@ Available client options:
 | `before_send` | Proc | `nil` | Callback that receives the event hash before it is queued or sent. Return a modified event hash, or `nil` to drop the event. |
 | `disable_singleton_warning` | Boolean | `false` | Suppress warnings about multiple clients with the same API key. Use only when you intentionally need multiple clients. |
 | `skip_ssl_verification` | Boolean | `false` | Disable SSL certificate verification. Intended only for local development or custom deployments. |
-| `flag_definition_cache_provider` | Object | `nil` | Experimental provider for distributed feature flag definition caching. See [distributed flag definition caching](#distributed-flag-definition-caching). |
+| `flag_definition_cache_provider` | Object | `nil` | Provider for distributed feature flag definition caching. See [distributed flag definition caching](#distributed-flag-definition-caching). |
 
 ### Filtering or modifying events before sending
 
@@ -231,7 +231,7 @@ end
 
 ### Distributed flag definition caching
 
-`flag_definition_cache_provider` is an experimental API for sharing locally evaluated feature flag definitions across multiple workers or processes. The provider object must implement:
+`flag_definition_cache_provider` shares locally evaluated feature flag definitions across multiple workers or processes. The provider object must implement:
 
 - `flag_definitions` – returns cached definitions as a hash with `:flags`, `:group_type_mapping`, and `:cohorts`, or `nil` if empty.
 - `should_fetch_flag_definitions?` – returns `true` if this process should fetch fresh definitions from PostHog.
@@ -246,8 +246,6 @@ posthog = PostHog::Client.new({
 })
 ```
 
-Because this API is experimental, it may change in future minor versions.
-
 ### Remote config payloads
 
 Use `get_remote_config_payload` to fetch the decrypted remote config payload for a flag. This requires `personal_api_key`.