[Doc] Add release note for v0.11.0rc1

Signed-off-by: wangxiyuan <wangxiyuan1007@gmail.com>

Author: wangxiyuan

docs/source/user_guide/release_notes.md

@@ -1,5 +1,35 @@
 # Release Notes
 
+## v0.11.0rc1 - 2025.11.04
+
+This is the first release candidate of v0.11.0 for vLLM Ascend. Please follow the [official doc](https://vllm-ascend.readthedocs.io/en/v0.11.0-dev) to get started.
+v0.11.0 will be the next official release version of vLLM Ascend. We'll release it in the next few days. Any feedback is welcome to help us improve v0.11.0.
+
+### Highlights
+- CANN is upgrade to 8.3.RC1. Torch-npu is upgrade to 2.7.1. [#3945](https://github.com/vllm-project/vllm-ascend/pull/3945) [#3896](https://github.com/vllm-project/vllm-ascend/pull/3896)
+- PrefixCache and Chunked Prefill are enabled by default. ~~[#3300](https://github.com/vllm-project/vllm-ascend/pull/3300)~~
+- W4A4 quantization is supported now. [#3427](https://github.com/vllm-project/vllm-ascend/pull/3427)
+
+### Core
+- Performance of Qwen and Deepseek series models are improved.
+- Mooncake layerwise connector is supported now [#2602](https://github.com/vllm-project/vllm-ascend/pull/2602)
+- MTP > 1 is supported now. [#2708](https://github.com/vllm-project/vllm-ascend/pull/2708)
+- [Experimental] Graph mode `FULL_DECODE_ONLY` is supported now! And `FULL` will be landing in the next few weeks. [#2128](https://github.com/vllm-project/vllm-ascend/pull/2128)
+- Pooling models, such as bge-m3, are supported now. [#3171](https://github.com/vllm-project/vllm-ascend/pull/3171)
+
+### Other
+- Refactor the MOE module to make it clearer and easier to understand and the performance has improved in both quantitative and non-quantitative scenarios.
+- Refactor model register module to make it easier to maintain. We'll remove this module in Q4 2025. [#3004](https://github.com/vllm-project/vllm-ascend/pull/3004)
+- Torchair is deprecated. We'll remove it once the performance of ACL Graph is good enough. The deadline is Q1 2026.
+- LLMDatadist KV Connector is deprecated. We'll remove it in Q1 2026.
+- Refactor the linear module to support features flashcomm1 and flashcomm2 in paper [flashcomm](https://arxiv.org/pdf/2412.04964) [#3004](https://github.com/vllm-project/vllm-ascend/pull/3004) [#3334](https://github.com/vllm-project/vllm-ascend/pull/3334)
+
+### Known issue
+- Sleep mode doesn't work as expect. It will be fixed in the next release.
+- The memory may be leaked and the service may be stuck after long time serving. This is a bug from torch-npu, we'll upgrade and fix it soon.
+- For long sequence input case, there is no response sometimes and the kv cache usage is become higher. This is a bug for scheduler. We are working on it.
+- The accuracy of qwen2.5 VL is not very good. This is a bug lead by CANN, we fix it soon.
+
 ## v0.11.0rc0 - 2025.09.30
 
 This is the special release candidate of v0.11.0 for vLLM Ascend. Please follow the [official doc](https://vllm-ascend.readthedocs.io/en/) to get started.