diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f480e1..cb6c3a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,17 @@
 ## [Unreleased]
 
 
+<a name="0.15.0"></a>
+## [0.15.0] - 2024-08-14
+### bug fixes
+- **tests:** use tlsv1.2 in dual cert test [415be3f](https://github.com/fffonion/lua-resty-acme/commit/415be3fe2a5bfcc3cd6aac5ab8a736f0a672475c)
+- **tests:** uses v3 protocol for etcd [c3928b5](https://github.com/fffonion/lua-resty-acme/commit/c3928b5e92dd66e9a22d497935a878b59cb26b36)
+
+### features
+- **etcd:** etcd storage to use v3 protocol [a3353b3](https://github.com/fffonion/lua-resty-acme/commit/a3353b3b26b4cb0c17e98dd36f829a0db18e4ef7)
+- **redis:** add support for username/password auth ([#121](https://github.com/fffonion/lua-resty-acme/issues/121)) [186ab23](https://github.com/fffonion/lua-resty-acme/commit/186ab2367c66725b6a38a8f81743328e9a4455e3)
+
+
 <a name="0.14.0"></a>
 ## [0.14.0] - 2024-05-28
 ### bug fixes
@@ -312,7 +323,8 @@
 - **crypto:** ffi openssl supports generating ec certificates [bc9d989](https://github.com/fffonion/lua-resty-acme/commit/bc9d989b4eb8bfa954f2f1ab08b0449957a27402)
 
 
-[Unreleased]: https://github.com/fffonion/lua-resty-acme/compare/0.14.0...HEAD
+[Unreleased]: https://github.com/fffonion/lua-resty-acme/compare/0.15.0...HEAD
+[0.15.0]: https://github.com/fffonion/lua-resty-acme/compare/0.14.0...0.15.0
 [0.14.0]: https://github.com/fffonion/lua-resty-acme/compare/0.13.0...0.14.0
 [0.13.0]: https://github.com/fffonion/lua-resty-acme/compare/0.12.0...0.13.0
 [0.12.0]: https://github.com/fffonion/lua-resty-acme/compare/0.11.0...0.12.0
diff --git a/lib/resty/acme/client.lua b/lib/resty/acme/client.lua
index 091e3ff..9703e5b 100644
--- a/lib/resty/acme/client.lua
+++ b/lib/resty/acme/client.lua
@@ -23,7 +23,7 @@ local wait_backoff_series = {1, 1, 2, 3, 5, 8, 13, 21}
 local TEST_TRY_NONCE_INFINITELY = not not os.getenv("TEST_TRY_NONCE_INFINITELY")
 
 local _M = {
-  _VERSION = '0.14.0'
+  _VERSION = '0.15.0'
 }
 local mt = {__index = _M}
 
diff --git a/lua-resty-acme-0.14.0-1.rockspec b/lua-resty-acme-0.15.0-1.rockspec
similarity index 98%
rename from lua-resty-acme-0.14.0-1.rockspec
rename to lua-resty-acme-0.15.0-1.rockspec
index a704b94..f7b725e 100644
--- a/lua-resty-acme-0.14.0-1.rockspec
+++ b/lua-resty-acme-0.15.0-1.rockspec
@@ -1,8 +1,8 @@
 package = "lua-resty-acme"
-version = "0.14.0-1"
+version = "0.15.0-1"
 source = {
    url = "git+https://github.com/fffonion/lua-resty-acme.git",
-   tag = "0.14.0"
+   tag = "0.15.0"
 }
 description = {
    summary = "Automatic Let's Encrypt certificate serving and Lua implementation of ACME procotol",