From 8911235c97ec9e8c7ee933d91c329c486598ed2f Mon Sep 17 00:00:00 2001
From: guill <jacob.e.segal@gmail.com>
Date: Thu, 5 Mar 2026 15:21:52 -0800
Subject: [PATCH 1/2] Add/update changelog/index.mdx

---
 changelog/index.mdx | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/changelog/index.mdx b/changelog/index.mdx
index 47defce3..0f42d292 100644
--- a/changelog/index.mdx
+++ b/changelog/index.mdx
@@ -4,6 +4,15 @@ description: "Track ComfyUI's latest features, improvements, and bug fixes. For
 icon: "clock-rotate-left"
 ---
 
+<Update label="v0.16.3" description="March 5, 2026">
+
+**LTX Audio Model Improvements**
+- Fixed LTX2 vocoder conv_transpose1d with manual casting for improved audio processing stability
+- Resolved LTX audio VAE novram compatibility issues for better memory management during audio generation
+- Added causal_fix parameter to add_keyframe_index and append_keyframe functions, enhancing keyframe handling precision in video workflows
+
+</Update>
+
 <Update label="v0.16.2" description="March 5, 2026">
 
 **Core Updates**

From 09b41688d5c15096e1611306779030e177b35ae7 Mon Sep 17 00:00:00 2001
From: guill <jacob.e.segal@gmail.com>
Date: Thu, 5 Mar 2026 15:21:53 -0800
Subject: [PATCH 2/2] Add/update zh-CN/changelog/index.mdx

---
 zh-CN/changelog/index.mdx | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/zh-CN/changelog/index.mdx b/zh-CN/changelog/index.mdx
index 7cfec581..6280ec94 100644
--- a/zh-CN/changelog/index.mdx
+++ b/zh-CN/changelog/index.mdx
@@ -4,6 +4,15 @@ description: "跟踪 ComfyUI 的最新功能、改进和错误修复。详细的
 icon: "clock-rotate-left"
 ---
 
+<Update label="v0.16.3" description="2026年3月5日">
+
+**LTX Audio 模型改进**
+- 修复了 LTX2 vocoder conv_transpose1d 的手动类型转换问题，提高了音频处理稳定性
+- 解决了 LTX audio VAE novram 兼容性问题，改善了音频生成过程中的内存管理
+- 为 add_keyframe_index 和 append_keyframe 函数添加了 causal_fix 参数，增强了视频工作流中关键帧处理的精度
+
+</Update>
+
 <Update label="v0.16.2" description="2026年3月5日">
 
 **核心更新**
@@ -15,6 +24,7 @@ icon: "clock-rotate-left"
 - 代码重构改进，增强了稳定性
 
 </Update>
+
 <Update label="v0.16.1" description="2026年3月5日">
 
 **API 节点更新**