diff --git a/CHANGELOG.md b/CHANGELOG.md
index f97f44b..44f7607 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,21 @@
 # Changelog
 
+## [1.0.0](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v0.2.3...v1.0.0) (2026-09-26)
+
+### ⚠ BREAKING CHANGES
+
+* investment reads return data/meta resource envelopes and locally
+  persisted snapshots; consumers must use the matching OpenAPI contract and explicit
+  synchronization endpoints.
+
+### Features
+
+* persist T-Bank data and synchronize reads ([d6e6c4a](https://git.personal.ksv741.ru/WealthLedger/backend/commit/d6e6c4ace553572ff9e9f635b7a4d21c8afbf97f))
+
+### Tests
+
+* prove reads finish before source synchronization ([e423213](https://git.personal.ksv741.ru/WealthLedger/backend/commit/e4232138d04ad6a2aa8100a7d36fdcb2d7663fa8))
+
 ## [0.2.3](https://git.personal.ksv741.ru/WealthLedger/backend/compare/v0.2.2...v0.2.3) (2026-09-19)
 
 ### Bug Fixes
diff --git a/package-lock.json b/package-lock.json
index a37b5d4..70b172a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "wealth-ledger-backend",
-  "version": "0.2.3",
+  "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "wealth-ledger-backend",
-      "version": "0.2.3",
+      "version": "1.0.0",
       "license": "UNLICENSED",
       "dependencies": {
         "@grpc/grpc-js": "1.14.5",
diff --git a/package.json b/package.json
index e98d7d7..1dbc29a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wealth-ledger-backend",
-  "version": "0.2.3",
+  "version": "1.0.0",
   "description": "",
   "author": "",
   "private": true,