diff --git a/.release-please-manifest.premain.json b/.release-please-manifest.premain.json
index 63ae498..63eaaf5 100644
--- a/.release-please-manifest.premain.json
+++ b/.release-please-manifest.premain.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.3.0-rc"
+  ".": "1.3.0-rc.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index de0be62..d9bddfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,38 @@
 ## [1.2.1](https://github.com/theory-cloud/TableTheory/compare/v1.2.0...v1.2.1) (2026-01-23)
 
 
+### Bug Fixes
+
+* improved transaction handling ([30a5d7a](https://github.com/theory-cloud/TableTheory/commit/30a5d7acc371cbcbd38bee1d240e5eab24d49882))
+
+## [1.3.0-rc.1](https://github.com/theory-cloud/TableTheory/compare/v1.3.0-rc...v1.3.0-rc.1) (2026-01-23)
+
+
+### Features
+
+* FaceTheory ISR support (FT-T0..FT-T4) ([66eb65a](https://github.com/theory-cloud/TableTheory/commit/66eb65af9b253946c53f4f88af9dc10668e6d5bd))
+* FT-T1 lease helper (Go) ([bb6860a](https://github.com/theory-cloud/TableTheory/commit/bb6860a46380f1227a067dd87ea9fd0d8c4f4f34))
+* FT-T1 lease helper (Py) ([71b1c01](https://github.com/theory-cloud/TableTheory/commit/71b1c01ca9d8347e8443627c023d698f4ce4d34b))
+* FT-T1 lease helper (TS) ([b04dbb1](https://github.com/theory-cloud/TableTheory/commit/b04dbb17cc72b25d0ba328680170b64fcc37efc6))
+* **mocks:** add transaction builder mock ([ea39672](https://github.com/theory-cloud/TableTheory/commit/ea39672edffd22bf24b1471e244c14b79f06211d))
+* **mocks:** add transaction builder mock ([16ab5a5](https://github.com/theory-cloud/TableTheory/commit/16ab5a5d7b22d1087973f96a5c69b2c3a3796c3e))
+
+
+### Bug Fixes
+
+* address security/quality findings ([3b56fb4](https://github.com/theory-cloud/TableTheory/commit/3b56fb4986d2a0e93ced5c682caa2fd401a62087))
+* address security/quality findings ([f7adaf7](https://github.com/theory-cloud/TableTheory/commit/f7adaf79d1e7248d3b2654f5c82b33f79cc6e4ac))
+* **ci:** make release assets immutable ([1ef4aca](https://github.com/theory-cloud/TableTheory/commit/1ef4aca7bbd6ef6fffe9a86b9f33b1c0c28e1e97))
+* **ci:** make release assets immutable ([e9ad219](https://github.com/theory-cloud/TableTheory/commit/e9ad219f7d806e8faff7422c45ea2b1f066e3904))
+* **ci:** retry git fetch in branch-version-sync ([1b4d855](https://github.com/theory-cloud/TableTheory/commit/1b4d8557fe66c5c333846469369d9e5285cc1232))
+* improved transaction handling ([30a5d7a](https://github.com/theory-cloud/TableTheory/commit/30a5d7acc371cbcbd38bee1d240e5eab24d49882))
+* **mocks:** satisfy lint gates ([a9cd117](https://github.com/theory-cloud/TableTheory/commit/a9cd1170fc200489369b76f098635321ed3d81c0))
+* **premain:** restore prerelease version alignment ([9b07cdb](https://github.com/theory-cloud/TableTheory/commit/9b07cdb7df5e69be8012374f742d89252ffde942))
+* **security:** harden API key hashing ([2c47b6c](https://github.com/theory-cloud/TableTheory/commit/2c47b6c7dac1084b66448f81dc3d49ce4e4114e0))
+
+## [1.2.1](https://github.com/theory-cloud/TableTheory/compare/v1.2.0...v1.2.1) (2026-01-23)
+
+
 ### Bug Fixes
 
 * improved transaction handling ([30a5d7a](https://github.com/theory-cloud/TableTheory/commit/30a5d7acc371cbcbd38bee1d240e5eab24d49882))
diff --git a/py/src/theorydb_py/version.json b/py/src/theorydb_py/version.json
index eacfba5..2116354 100644
--- a/py/src/theorydb_py/version.json
+++ b/py/src/theorydb_py/version.json
@@ -1,3 +1,3 @@
 {
-  "version": "1.3.0-rc"
+  "version": "1.2.1"
 }
diff --git a/ts/package-lock.json b/ts/package-lock.json
index 288a5c1..1a7a44d 100644
--- a/ts/package-lock.json
+++ b/ts/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@theory-cloud/tabletheory-ts",
-  "version": "1.3.0-rc",
+  "version": "1.2.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@theory-cloud/tabletheory-ts",
-      "version": "1.3.0-rc",
+      "version": "1.2.1",
       "license": "Apache-2.0",
       "dependencies": {
         "@aws-sdk/client-dynamodb": "^3.971.0",
diff --git a/ts/package.json b/ts/package.json
index 4057eeb..66e9bf9 100644
--- a/ts/package.json
+++ b/ts/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@theory-cloud/tabletheory-ts",
-  "version": "1.3.0-rc",
+  "version": "1.2.1",
   "license": "Apache-2.0",
   "private": true,
   "type": "module",