diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ab7c752..9f65508e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## v1.4.397 (2026-01-31)
+
+### PR [#1979](https://github.com/danielmiessler/Fabric/pull/1979) by [ksylvan](https://github.com/ksylvan): Update Anthropic SDK to v1.20.0 and reorganize model definitions
+
+- Feat: update Anthropic SDK to v1.20.0 and reorganize model definitions
+- Bump `anthropic-sdk-go` dependency from v1.19.0 to v1.20.0
+- Add deprecation notice for pre-February 2026 legacy models
+- Add new Claude Sonnet 4.0 and Opus 4.0 model aliases
+- Extend 1M context beta support to all Sonnet 4 variants
+
 ## v1.4.396 (2026-01-30)
 
 ### PR [#1975](https://github.com/danielmiessler/Fabric/pull/1975) by [koriyoshi2041](https://github.com/koriyoshi2041): feat: add suggest_moltbot_command pattern for Moltbot (formerly Clawdbot) CLI
diff --git a/cmd/fabric/version.go b/cmd/fabric/version.go
index 1ac7ffc3..89244d2f 100644
--- a/cmd/fabric/version.go
+++ b/cmd/fabric/version.go
@@ -1,3 +1,3 @@
 package main
 
-var version = "v1.4.396"
+var version = "v1.4.397"
diff --git a/cmd/generate_changelog/changelog.db b/cmd/generate_changelog/changelog.db
index 007cb329..3ec19caa 100644
Binary files a/cmd/generate_changelog/changelog.db and b/cmd/generate_changelog/changelog.db differ
diff --git a/cmd/generate_changelog/incoming/1979.txt b/cmd/generate_changelog/incoming/1979.txt
deleted file mode 100644
index 2f6beba0..00000000
--- a/cmd/generate_changelog/incoming/1979.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-### PR [#1979](https://github.com/danielmiessler/Fabric/pull/1979) by [ksylvan](https://github.com/ksylvan): Update Anthropic SDK to v1.20.0 and reorganize model definitions
-
-- Feat: update Anthropic SDK to v1.20.0 and reorganize model definitions
-- Bump `anthropic-sdk-go` dependency from v1.19.0 to v1.20.0
-- Add deprecation notice for pre-February 2026 legacy models
-- Add new Claude Sonnet 4.0 and Opus 4.0 model aliases
-- Extend 1M context beta support to all Sonnet 4 variants
diff --git a/nix/pkgs/fabric/gomod2nix.toml b/nix/pkgs/fabric/gomod2nix.toml
index 0338ec1e..a15beaf7 100644
--- a/nix/pkgs/fabric/gomod2nix.toml
+++ b/nix/pkgs/fabric/gomod2nix.toml
@@ -38,8 +38,8 @@ schema = 3
     version = "v1.3.3"
     hash = "sha256-jv7ZshpSd7FZzKKN6hqlUgiR8C3y85zNIS/hq7g76Ho="
   [mod."github.com/anthropics/anthropic-sdk-go"]
-    version = "v1.19.0"
-    hash = "sha256-ubYeau5XL0tx4c/79L58rzJGOdOWs9z6WQOtN6mpgxw="
+    version = "v1.20.0"
+    hash = "sha256-lIOrVT0vWNWhshc/3/UGOR4/EyBzNvTuXcgFQq3HR0k="
   [mod."github.com/apache/arrow/go/arrow"]
     version = "v0.0.0-20211112161151-bc219186db40"
     hash = "sha256-hcVrZsJuiRIDx13QDKCxUtZgmze6iFkwyjDvQxkzcR8="
diff --git a/nix/pkgs/fabric/version.nix b/nix/pkgs/fabric/version.nix
index cc9e1ce9..7a943656 100644
--- a/nix/pkgs/fabric/version.nix
+++ b/nix/pkgs/fabric/version.nix
@@ -1 +1 @@
-"1.4.396"
+"1.4.397"