diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 629d1302..b943a5ec 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -173,7 +173,7 @@ jobs:
           - { host: macos-latest, target: x86_64-apple-darwin }
           - { host: macos-latest, target: aarch64-apple-darwin }
           - { host: windows-latest, target: x86_64-pc-windows-msvc }
-          # NOTE: aarch64-pc-windows-msvc is temporarily skipped for 0.2.1.
+          # NOTE: aarch64-pc-windows-msvc is temporarily skipped for 0.2.5.
           # The wickra-win32-arm64-msvc npm subpackage name is blocked by the
           # npm spam-detection filter for new accounts (same situation that
           # affected wickra-win32-x64-msvc through 0.1.4 until npm Support
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2fe82b9a..f4aa0290 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,29 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.5] - 2026-05-24
+
+### Added
+- `BinanceConfig` plus `BinanceKlineStream::connect_with_config(symbols, interval, config)`
+  in `wickra-data`'s `live::binance` module. `connect()` keeps its previous
+  signature and now forwards to the new entry-point with the defaults, so the
+  public API is backwards-compatible. The config lets callers point the
+  stream at Binance Testnet (`wss://testnet.binance.vision`) or tune the
+  read timeout, reconnect attempt count, initial / capped backoff and frame
+  size limits without rewriting the connector.
+- README **Disclaimer** section clarifying that Wickra is an indicator
+  toolkit (not a trading system) and that any production-trading use is at
+  the caller's own risk. The legal terms in [LICENSE](LICENSE) are
+  unchanged.
+
+### Changed
+- `BinanceKlineStream::next_event` now writes the Pong reply to a server
+  `Ping` on a best-effort basis. A failed write means the connection is
+  already dead, so the existing timeout / read-error reconnect arm one
+  loop iteration later picks it up — the previous explicit reconnect on
+  Pong-write failure is gone. Observable behaviour is unchanged for every
+  healthy connection.
+
 ## [0.2.1] - 2026-05-23
 
 ### Changed
@@ -329,7 +352,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   optional Binance live feed.
 - Bindings for Python, Node.js, and WebAssembly.
 
-[Unreleased]: https://github.com/kingchenc/wickra/compare/v0.2.1...HEAD
+[Unreleased]: https://github.com/kingchenc/wickra/compare/v0.2.5...HEAD
+[0.2.5]: https://github.com/kingchenc/wickra/compare/v0.2.1...v0.2.5
 [0.2.1]: https://github.com/kingchenc/wickra/compare/v0.2.0...v0.2.1
 [0.2.0]: https://github.com/kingchenc/wickra/compare/v0.1.4...v0.2.0
 [0.1.4]: https://github.com/kingchenc/wickra/compare/v0.1.3...v0.1.4
diff --git a/Cargo.lock b/Cargo.lock
index da0166fc..efe54986 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1867,7 +1867,7 @@ dependencies = [
 
 [[package]]
 name = "wickra"
-version = "0.2.1"
+version = "0.2.5"
 dependencies = [
  "approx",
  "criterion",
@@ -1878,7 +1878,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-core"
-version = "0.2.1"
+version = "0.2.5"
 dependencies = [
  "approx",
  "proptest",
@@ -1888,7 +1888,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-data"
-version = "0.2.1"
+version = "0.2.5"
 dependencies = [
  "approx",
  "csv",
@@ -1915,7 +1915,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-node"
-version = "0.2.1"
+version = "0.2.5"
 dependencies = [
  "napi",
  "napi-build",
@@ -1925,7 +1925,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-python"
-version = "0.2.1"
+version = "0.2.5"
 dependencies = [
  "numpy",
  "pyo3",
@@ -1934,7 +1934,7 @@ dependencies = [
 
 [[package]]
 name = "wickra-wasm"
-version = "0.2.1"
+version = "0.2.5"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",
diff --git a/Cargo.toml b/Cargo.toml
index c9a7c670..e092e8bb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ members = [
 exclude = ["fuzz"]
 
 [workspace.package]
-version = "0.2.1"
+version = "0.2.5"
 authors = ["kingchenc <kingchencp@gmail.com>"]
 edition = "2021"
 rust-version = "1.86"
@@ -24,7 +24,7 @@ keywords = ["finance", "trading", "indicators", "technical-analysis", "ta"]
 categories = ["finance", "mathematics", "science"]
 
 [workspace.dependencies]
-wickra-core = { path = "crates/wickra-core", version = "0.2.1" }
+wickra-core = { path = "crates/wickra-core", version = "0.2.5" }
 
 thiserror = "2"
 rayon = "1.10"
diff --git a/README.md b/README.md
index cc9da99e..e0e1197d 100644
--- a/README.md
+++ b/README.md
@@ -287,6 +287,16 @@ government, hobby trading bots: all fine. The one thing that's not allowed is
 commercial sale of the software or of services built around it. If you want to
 use Wickra commercially, get in touch about a license.
 
+## Disclaimer
+
+Wickra is an indicator toolkit, not a trading system. Values it computes are
+deterministic transforms of the input data — they are not financial advice and
+they do not predict the market. Any use of this library in a production
+trading context is at your own risk.
+
+The library is provided **as is**, without warranty of any kind; see
+[LICENSE](LICENSE) for the full terms.
+
 ---
 
 <p align="center">
diff --git a/bindings/node/npm/darwin-arm64/package.json b/bindings/node/npm/darwin-arm64/package.json
index 9026fcb8..ac9c0453 100644
--- a/bindings/node/npm/darwin-arm64/package.json
+++ b/bindings/node/npm/darwin-arm64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wickra-darwin-arm64",
-  "version": "0.2.1",
+  "version": "0.2.5",
   "description": "Native binding for wickra (macOS Apple Silicon). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.darwin-arm64.node",
   "files": [
diff --git a/bindings/node/npm/darwin-x64/package.json b/bindings/node/npm/darwin-x64/package.json
index 3713f002..09740c2b 100644
--- a/bindings/node/npm/darwin-x64/package.json
+++ b/bindings/node/npm/darwin-x64/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wickra-darwin-x64",
-  "version": "0.2.1",
+  "version": "0.2.5",
   "description": "Native binding for wickra (macOS Intel). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.darwin-x64.node",
   "files": [
diff --git a/bindings/node/npm/linux-arm64-gnu/package.json b/bindings/node/npm/linux-arm64-gnu/package.json
index 28e422f5..f5bfbb0c 100644
--- a/bindings/node/npm/linux-arm64-gnu/package.json
+++ b/bindings/node/npm/linux-arm64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wickra-linux-arm64-gnu",
-  "version": "0.2.1",
+  "version": "0.2.5",
   "description": "Native binding for wickra (linux arm64 GNU). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.linux-arm64-gnu.node",
   "files": [
diff --git a/bindings/node/npm/linux-x64-gnu/package.json b/bindings/node/npm/linux-x64-gnu/package.json
index 48b6a0d6..9676c2a3 100644
--- a/bindings/node/npm/linux-x64-gnu/package.json
+++ b/bindings/node/npm/linux-x64-gnu/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wickra-linux-x64-gnu",
-  "version": "0.2.1",
+  "version": "0.2.5",
   "description": "Native binding for wickra (linux x64 GNU). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.linux-x64-gnu.node",
   "files": [
diff --git a/bindings/node/npm/win32-x64-msvc/package.json b/bindings/node/npm/win32-x64-msvc/package.json
index a686932e..e3115278 100644
--- a/bindings/node/npm/win32-x64-msvc/package.json
+++ b/bindings/node/npm/win32-x64-msvc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wickra-win32-x64-msvc",
-  "version": "0.2.1",
+  "version": "0.2.5",
   "description": "Native binding for wickra (Windows x64 MSVC). Installed automatically as an optional dependency of wickra on matching platforms.",
   "main": "wickra.win32-x64-msvc.node",
   "files": [
diff --git a/bindings/node/package.json b/bindings/node/package.json
index 5ba7c6ea..b3344e8d 100644
--- a/bindings/node/package.json
+++ b/bindings/node/package.json
@@ -1,6 +1,6 @@
 {
   "name": "wickra",
-  "version": "0.2.1",
+  "version": "0.2.5",
   "description": "Streaming-first technical indicators: incremental, fast, install-free. Node bindings powered by Rust.",
   "author": "kingchenc <kingchencp@gmail.com>",
   "main": "index.js",
@@ -46,11 +46,11 @@
     "node": ">= 18"
   },
   "optionalDependencies": {
-    "wickra-linux-x64-gnu": "0.2.1",
-    "wickra-linux-arm64-gnu": "0.2.1",
-    "wickra-darwin-x64": "0.2.1",
-    "wickra-darwin-arm64": "0.2.1",
-    "wickra-win32-x64-msvc": "0.2.1"
+    "wickra-linux-x64-gnu": "0.2.5",
+    "wickra-linux-arm64-gnu": "0.2.5",
+    "wickra-darwin-x64": "0.2.5",
+    "wickra-darwin-arm64": "0.2.5",
+    "wickra-win32-x64-msvc": "0.2.5"
   },
   "scripts": {
     "build": "napi build --platform --release",
diff --git a/bindings/python/pyproject.toml b/bindings/python/pyproject.toml
index a5317f25..9c7d0200 100644
--- a/bindings/python/pyproject.toml
+++ b/bindings/python/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "wickra"
-version = "0.2.1"
+version = "0.2.5"
 description = "Streaming-first technical indicators: incremental, fast, install-free."
 readme = "README.md"
 license = { text = "PolyForm-Noncommercial-1.0.0" }