docs(index.md): new release notes

docs/my-website/docs/proxy/rate_limit_tiers.md

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 # ✨ Budget / Rate Limit Tiers
 
-Create tiers with different budgets and rate limits. Making it easy to manage different users and their usage.
+Define tiers with rate limits. Assign them to keys. 
+
+Use this to control access and budgets across a lot of keys.
 
 :::info 
 

docs/my-website/release_notes/v1.56.1/index.md

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+import Image from '@theme/IdealImage';
+
+# v1.56.1
+
+`key management`, `budgets/rate limits`, `logging`, `guardrails`
+
+:::info
+
+Get a 7 day free trial for LiteLLM Enterprise [here](https://litellm.ai/#trial).
+
+**no call needed**
+
+:::
+
+## ✨ Budget / Rate Limit Tiers
+
+Define tiers with rate limits. Assign them to keys. 
+
+Use this to control access and budgets across a lot of keys.
+
+**[Start here](https://docs.litellm.ai/docs/proxy/rate_limit_tiers)**
+
+```bash
+curl -L -X POST 'http://0.0.0.0:4000/budget/new' \
+-H 'Authorization: Bearer sk-1234' \
+-H 'Content-Type: application/json' \
+-d '{
+    "budget_id": "high-usage-tier",
+    "model_max_budget": {
+        "gpt-4o": {"rpm_limit": 1000000}
+    }
+}'
+```
+
+
+## OTEL Bug Fix
+
+LiteLLM was double logging litellm_request span. This is now fixed.
+
+[Relevant PR](https://github.com/BerriAI/litellm/pull/7435)
+
+## Logging for Finetuning Endpoints 
+
+Logs for finetuning requests are now available on all logging providers (e.g. Datadog). 
+
+What's logged per request:
+
+- file_id
+- finetuning_job_id
+- any key/team metadata
+
+
+**Start Here:**
+- [Setup Finetuning](https://docs.litellm.ai/docs/fine_tuning)
+- [Setup Logging](https://docs.litellm.ai/docs/proxy/logging#datadog)
+
+## Dynamic Params for Guardrails 
+
+You can now set custom parameters (like success threshold) for your guardrails in each request.
+
+[See guardrails spec for more details](https://docs.litellm.ai/docs/proxy/guardrails/custom_guardrail#-pass-additional-parameters-to-guardrail)
+
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