diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f65508e..5fe7fcc1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,15 @@
 # Changelog
 
+## v1.4.398 (2026-02-03)
+
+### PR [#1981](https://github.com/danielmiessler/Fabric/pull/1981) by [infinitelyloopy-bt](https://github.com/infinitelyloopy-bt): fix(azure): support GPT-5 and o-series reasoning models
+
+- Fix Azure OpenAI integration to support GPT-5 and o-series reasoning models
+- Update default API version from 2024-05-01-preview to 2025-04-01-preview (required for o-series and GPT-5 models)
+- Remove NeedsRawMode override that always returned false, inheriting parent logic that correctly skips temperature/top_p for reasoning models
+- Add /responses route to deployment middleware for future v1 API support
+- Style: remove trailing blank line in azure.go to fix gofmt check
+
 ## 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
diff --git a/cmd/fabric/version.go b/cmd/fabric/version.go
index 89244d2f..94f37207 100644
--- a/cmd/fabric/version.go
+++ b/cmd/fabric/version.go
@@ -1,3 +1,3 @@
 package main
 
-var version = "v1.4.397"
+var version = "v1.4.398"
diff --git a/cmd/generate_changelog/changelog.db b/cmd/generate_changelog/changelog.db
index 3ec19caa..48011033 100644
Binary files a/cmd/generate_changelog/changelog.db and b/cmd/generate_changelog/changelog.db differ
diff --git a/cmd/generate_changelog/incoming/1981.txt b/cmd/generate_changelog/incoming/1981.txt
deleted file mode 100644
index 82260dad..00000000
--- a/cmd/generate_changelog/incoming/1981.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-### PR [#1981](https://github.com/danielmiessler/Fabric/pull/1981) by [infinitelyloopy-bt](https://github.com/infinitelyloopy-bt): fix(azure): support GPT-5 and o-series reasoning models
-
-- Fix Azure OpenAI integration to support GPT-5 and o-series reasoning models
-- Update default API version from 2024-05-01-preview to 2025-04-01-preview (required for o-series and GPT-5 models)
-- Remove NeedsRawMode override that always returned false, inheriting parent logic that correctly skips temperature/top_p for reasoning models
-- Add /responses route to deployment middleware for future v1 API support
-- Style: remove trailing blank line in azure.go to fix gofmt check
diff --git a/nix/pkgs/fabric/version.nix b/nix/pkgs/fabric/version.nix
index 7a943656..ff362576 100644
--- a/nix/pkgs/fabric/version.nix
+++ b/nix/pkgs/fabric/version.nix
@@ -1 +1 @@
-"1.4.397"
+"1.4.398"